X-ray Sensitive hybrid organic photodetectors with embedded CsPbBr3 perovskite quantum dots
X-ray detection is an important technology for medical diagnosis as well as industrial and security inspections. While today's commercial X-ray detectors are bulky, photodetectors based on organic semiconductors have attracted increasing attention owing to their low temperature processing capab...
Ausführliche Beschreibung
Gespeichert in:
| Autor*in: |
Xiang, Li [verfasserIn] |
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| Format: |
E-Artikel |
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| Sprache: |
Englisch |
| Erschienen: |
2021transfer abstract |
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| Übergeordnetes Werk: |
Enthalten in: Ultrasound-assisted synthesis and biological activity of nanosized supramolecular coordination polymers of silver(I) with chloride, thiocyanate, and 4,4′-bipyridine ligands - saleh, Dalia I ELSEVIER, 2022, physics, materials and applications, Amsterdam [u.a.] |
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| Übergeordnetes Werk: |
volume:98 ; year:2021 ; pages:0 |
| Links: |
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| DOI / URN: |
10.1016/j.orgel.2021.106306 |
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ELV054966930 |
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| 520 | |a X-ray detection is an important technology for medical diagnosis as well as industrial and security inspections. While today's commercial X-ray detectors are bulky, photodetectors based on organic semiconductors have attracted increasing attention owing to their low temperature processing capabilities, flexibility and low cost. Nonetheless, the low X-ray attenuation coefficient of organic semiconductors still hinders their practical application. Herein, a new organic-inorganic hybrid strategy is proposed to improve the X-ray sensitivity of organic photodetectors (OPDs). A solution-processed X-ray sensitive hybrid OPD is fabricated by embedding CsPbBr3 quantum dots (QDs) into a P3HT:PC61BM bulk heterojunction photodiode. The QDs, acting as embedded scintillators in the organic active layer, maintain a high radioluminescence. The proposed hybrid structure enables indirect X-ray detection in a comprehensive manner. These hybrid photodetectors exhibit suppressed dark current densities in the range of tens of picoamperes per square centimeters for different weight ratios of blended QDs. The best OPD achieves a sensitivity of 229.6 e nGy−1 mm−2 (3.67 μC Gy−1 cm−2) and a dark current of 23.3 pA cm−2 at a low operating voltage (−3 V) for 20–80 kV “soft” X-rays, thus representing great potential for the development of next generation low cost, portable, and highly sensitive X-ray detectors. | ||
| 520 | |a X-ray detection is an important technology for medical diagnosis as well as industrial and security inspections. While today's commercial X-ray detectors are bulky, photodetectors based on organic semiconductors have attracted increasing attention owing to their low temperature processing capabilities, flexibility and low cost. Nonetheless, the low X-ray attenuation coefficient of organic semiconductors still hinders their practical application. Herein, a new organic-inorganic hybrid strategy is proposed to improve the X-ray sensitivity of organic photodetectors (OPDs). A solution-processed X-ray sensitive hybrid OPD is fabricated by embedding CsPbBr3 quantum dots (QDs) into a P3HT:PC61BM bulk heterojunction photodiode. The QDs, acting as embedded scintillators in the organic active layer, maintain a high radioluminescence. The proposed hybrid structure enables indirect X-ray detection in a comprehensive manner. These hybrid photodetectors exhibit suppressed dark current densities in the range of tens of picoamperes per square centimeters for different weight ratios of blended QDs. The best OPD achieves a sensitivity of 229.6 e nGy−1 mm−2 (3.67 μC Gy−1 cm−2) and a dark current of 23.3 pA cm−2 at a low operating voltage (−3 V) for 20–80 kV “soft” X-rays, thus representing great potential for the development of next generation low cost, portable, and highly sensitive X-ray detectors. | ||
| 650 | 7 | |a Perovskite |2 Elsevier | |
| 650 | 7 | |a Quantum dot |2 Elsevier | |
| 650 | 7 | |a Photodetectors |2 Elsevier | |
| 650 | 7 | |a X-ray |2 Elsevier | |
| 650 | 7 | |a Organic photodiode |2 Elsevier | |
| 700 | 1 | |a Huang, Xuekai |4 oth | |
| 700 | 1 | |a Wang, Ya |4 oth | |
| 700 | 1 | |a Xin, Zhilong |4 oth | |
| 700 | 1 | |a Chai, Gaoda |4 oth | |
| 700 | 1 | |a Xu, Yangbing |4 oth | |
| 700 | 1 | |a Wang, Kai |4 oth | |
| 700 | 1 | |a Chen, Jun |4 oth | |
| 700 | 1 | |a Liu, Chuan |4 oth | |
| 700 | 1 | |a Wang, Xinwei |4 oth | |
| 700 | 1 | |a Zhang, Shengdong |4 oth | |
| 700 | 1 | |a Zhou, Hang |4 oth | |
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10.1016/j.orgel.2021.106306 doi /cbs_pica/cbs_olc/import_discovery/elsevier/einzuspielen/GBV00000000001488.pica (DE-627)ELV054966930 (ELSEVIER)S1566-1199(21)00243-3 DE-627 ger DE-627 rakwb eng 540 VZ 35.00 bkl Xiang, Li verfasserin aut X-ray Sensitive hybrid organic photodetectors with embedded CsPbBr3 perovskite quantum dots 2021transfer abstract nicht spezifiziert zzz rdacontent nicht spezifiziert z rdamedia nicht spezifiziert zu rdacarrier X-ray detection is an important technology for medical diagnosis as well as industrial and security inspections. While today's commercial X-ray detectors are bulky, photodetectors based on organic semiconductors have attracted increasing attention owing to their low temperature processing capabilities, flexibility and low cost. Nonetheless, the low X-ray attenuation coefficient of organic semiconductors still hinders their practical application. Herein, a new organic-inorganic hybrid strategy is proposed to improve the X-ray sensitivity of organic photodetectors (OPDs). A solution-processed X-ray sensitive hybrid OPD is fabricated by embedding CsPbBr3 quantum dots (QDs) into a P3HT:PC61BM bulk heterojunction photodiode. The QDs, acting as embedded scintillators in the organic active layer, maintain a high radioluminescence. The proposed hybrid structure enables indirect X-ray detection in a comprehensive manner. These hybrid photodetectors exhibit suppressed dark current densities in the range of tens of picoamperes per square centimeters for different weight ratios of blended QDs. The best OPD achieves a sensitivity of 229.6 e nGy−1 mm−2 (3.67 μC Gy−1 cm−2) and a dark current of 23.3 pA cm−2 at a low operating voltage (−3 V) for 20–80 kV “soft” X-rays, thus representing great potential for the development of next generation low cost, portable, and highly sensitive X-ray detectors. X-ray detection is an important technology for medical diagnosis as well as industrial and security inspections. While today's commercial X-ray detectors are bulky, photodetectors based on organic semiconductors have attracted increasing attention owing to their low temperature processing capabilities, flexibility and low cost. Nonetheless, the low X-ray attenuation coefficient of organic semiconductors still hinders their practical application. Herein, a new organic-inorganic hybrid strategy is proposed to improve the X-ray sensitivity of organic photodetectors (OPDs). A solution-processed X-ray sensitive hybrid OPD is fabricated by embedding CsPbBr3 quantum dots (QDs) into a P3HT:PC61BM bulk heterojunction photodiode. The QDs, acting as embedded scintillators in the organic active layer, maintain a high radioluminescence. The proposed hybrid structure enables indirect X-ray detection in a comprehensive manner. These hybrid photodetectors exhibit suppressed dark current densities in the range of tens of picoamperes per square centimeters for different weight ratios of blended QDs. The best OPD achieves a sensitivity of 229.6 e nGy−1 mm−2 (3.67 μC Gy−1 cm−2) and a dark current of 23.3 pA cm−2 at a low operating voltage (−3 V) for 20–80 kV “soft” X-rays, thus representing great potential for the development of next generation low cost, portable, and highly sensitive X-ray detectors. Perovskite Elsevier Quantum dot Elsevier Photodetectors Elsevier X-ray Elsevier Organic photodiode Elsevier Huang, Xuekai oth Wang, Ya oth Xin, Zhilong oth Chai, Gaoda oth Xu, Yangbing oth Wang, Kai oth Chen, Jun oth Liu, Chuan oth Wang, Xinwei oth Zhang, Shengdong oth Zhou, Hang oth Enthalten in Elsevier Science saleh, Dalia I ELSEVIER Ultrasound-assisted synthesis and biological activity of nanosized supramolecular coordination polymers of silver(I) with chloride, thiocyanate, and 4,4′-bipyridine ligands 2022 physics, materials and applications Amsterdam [u.a.] (DE-627)ELV007843747 volume:98 year:2021 pages:0 https://doi.org/10.1016/j.orgel.2021.106306 Volltext GBV_USEFLAG_U GBV_ELV SYSFLAG_U SSG-OLC-PHA 35.00 Chemie: Allgemeines VZ AR 98 2021 0 |
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10.1016/j.orgel.2021.106306 doi /cbs_pica/cbs_olc/import_discovery/elsevier/einzuspielen/GBV00000000001488.pica (DE-627)ELV054966930 (ELSEVIER)S1566-1199(21)00243-3 DE-627 ger DE-627 rakwb eng 540 VZ 35.00 bkl Xiang, Li verfasserin aut X-ray Sensitive hybrid organic photodetectors with embedded CsPbBr3 perovskite quantum dots 2021transfer abstract nicht spezifiziert zzz rdacontent nicht spezifiziert z rdamedia nicht spezifiziert zu rdacarrier X-ray detection is an important technology for medical diagnosis as well as industrial and security inspections. While today's commercial X-ray detectors are bulky, photodetectors based on organic semiconductors have attracted increasing attention owing to their low temperature processing capabilities, flexibility and low cost. Nonetheless, the low X-ray attenuation coefficient of organic semiconductors still hinders their practical application. Herein, a new organic-inorganic hybrid strategy is proposed to improve the X-ray sensitivity of organic photodetectors (OPDs). A solution-processed X-ray sensitive hybrid OPD is fabricated by embedding CsPbBr3 quantum dots (QDs) into a P3HT:PC61BM bulk heterojunction photodiode. The QDs, acting as embedded scintillators in the organic active layer, maintain a high radioluminescence. The proposed hybrid structure enables indirect X-ray detection in a comprehensive manner. These hybrid photodetectors exhibit suppressed dark current densities in the range of tens of picoamperes per square centimeters for different weight ratios of blended QDs. The best OPD achieves a sensitivity of 229.6 e nGy−1 mm−2 (3.67 μC Gy−1 cm−2) and a dark current of 23.3 pA cm−2 at a low operating voltage (−3 V) for 20–80 kV “soft” X-rays, thus representing great potential for the development of next generation low cost, portable, and highly sensitive X-ray detectors. X-ray detection is an important technology for medical diagnosis as well as industrial and security inspections. While today's commercial X-ray detectors are bulky, photodetectors based on organic semiconductors have attracted increasing attention owing to their low temperature processing capabilities, flexibility and low cost. Nonetheless, the low X-ray attenuation coefficient of organic semiconductors still hinders their practical application. Herein, a new organic-inorganic hybrid strategy is proposed to improve the X-ray sensitivity of organic photodetectors (OPDs). A solution-processed X-ray sensitive hybrid OPD is fabricated by embedding CsPbBr3 quantum dots (QDs) into a P3HT:PC61BM bulk heterojunction photodiode. The QDs, acting as embedded scintillators in the organic active layer, maintain a high radioluminescence. The proposed hybrid structure enables indirect X-ray detection in a comprehensive manner. These hybrid photodetectors exhibit suppressed dark current densities in the range of tens of picoamperes per square centimeters for different weight ratios of blended QDs. The best OPD achieves a sensitivity of 229.6 e nGy−1 mm−2 (3.67 μC Gy−1 cm−2) and a dark current of 23.3 pA cm−2 at a low operating voltage (−3 V) for 20–80 kV “soft” X-rays, thus representing great potential for the development of next generation low cost, portable, and highly sensitive X-ray detectors. Perovskite Elsevier Quantum dot Elsevier Photodetectors Elsevier X-ray Elsevier Organic photodiode Elsevier Huang, Xuekai oth Wang, Ya oth Xin, Zhilong oth Chai, Gaoda oth Xu, Yangbing oth Wang, Kai oth Chen, Jun oth Liu, Chuan oth Wang, Xinwei oth Zhang, Shengdong oth Zhou, Hang oth Enthalten in Elsevier Science saleh, Dalia I ELSEVIER Ultrasound-assisted synthesis and biological activity of nanosized supramolecular coordination polymers of silver(I) with chloride, thiocyanate, and 4,4′-bipyridine ligands 2022 physics, materials and applications Amsterdam [u.a.] (DE-627)ELV007843747 volume:98 year:2021 pages:0 https://doi.org/10.1016/j.orgel.2021.106306 Volltext GBV_USEFLAG_U GBV_ELV SYSFLAG_U SSG-OLC-PHA 35.00 Chemie: Allgemeines VZ AR 98 2021 0 |
| allfields_unstemmed |
10.1016/j.orgel.2021.106306 doi /cbs_pica/cbs_olc/import_discovery/elsevier/einzuspielen/GBV00000000001488.pica (DE-627)ELV054966930 (ELSEVIER)S1566-1199(21)00243-3 DE-627 ger DE-627 rakwb eng 540 VZ 35.00 bkl Xiang, Li verfasserin aut X-ray Sensitive hybrid organic photodetectors with embedded CsPbBr3 perovskite quantum dots 2021transfer abstract nicht spezifiziert zzz rdacontent nicht spezifiziert z rdamedia nicht spezifiziert zu rdacarrier X-ray detection is an important technology for medical diagnosis as well as industrial and security inspections. While today's commercial X-ray detectors are bulky, photodetectors based on organic semiconductors have attracted increasing attention owing to their low temperature processing capabilities, flexibility and low cost. Nonetheless, the low X-ray attenuation coefficient of organic semiconductors still hinders their practical application. Herein, a new organic-inorganic hybrid strategy is proposed to improve the X-ray sensitivity of organic photodetectors (OPDs). A solution-processed X-ray sensitive hybrid OPD is fabricated by embedding CsPbBr3 quantum dots (QDs) into a P3HT:PC61BM bulk heterojunction photodiode. The QDs, acting as embedded scintillators in the organic active layer, maintain a high radioluminescence. The proposed hybrid structure enables indirect X-ray detection in a comprehensive manner. These hybrid photodetectors exhibit suppressed dark current densities in the range of tens of picoamperes per square centimeters for different weight ratios of blended QDs. The best OPD achieves a sensitivity of 229.6 e nGy−1 mm−2 (3.67 μC Gy−1 cm−2) and a dark current of 23.3 pA cm−2 at a low operating voltage (−3 V) for 20–80 kV “soft” X-rays, thus representing great potential for the development of next generation low cost, portable, and highly sensitive X-ray detectors. X-ray detection is an important technology for medical diagnosis as well as industrial and security inspections. While today's commercial X-ray detectors are bulky, photodetectors based on organic semiconductors have attracted increasing attention owing to their low temperature processing capabilities, flexibility and low cost. Nonetheless, the low X-ray attenuation coefficient of organic semiconductors still hinders their practical application. Herein, a new organic-inorganic hybrid strategy is proposed to improve the X-ray sensitivity of organic photodetectors (OPDs). A solution-processed X-ray sensitive hybrid OPD is fabricated by embedding CsPbBr3 quantum dots (QDs) into a P3HT:PC61BM bulk heterojunction photodiode. The QDs, acting as embedded scintillators in the organic active layer, maintain a high radioluminescence. The proposed hybrid structure enables indirect X-ray detection in a comprehensive manner. These hybrid photodetectors exhibit suppressed dark current densities in the range of tens of picoamperes per square centimeters for different weight ratios of blended QDs. The best OPD achieves a sensitivity of 229.6 e nGy−1 mm−2 (3.67 μC Gy−1 cm−2) and a dark current of 23.3 pA cm−2 at a low operating voltage (−3 V) for 20–80 kV “soft” X-rays, thus representing great potential for the development of next generation low cost, portable, and highly sensitive X-ray detectors. Perovskite Elsevier Quantum dot Elsevier Photodetectors Elsevier X-ray Elsevier Organic photodiode Elsevier Huang, Xuekai oth Wang, Ya oth Xin, Zhilong oth Chai, Gaoda oth Xu, Yangbing oth Wang, Kai oth Chen, Jun oth Liu, Chuan oth Wang, Xinwei oth Zhang, Shengdong oth Zhou, Hang oth Enthalten in Elsevier Science saleh, Dalia I ELSEVIER Ultrasound-assisted synthesis and biological activity of nanosized supramolecular coordination polymers of silver(I) with chloride, thiocyanate, and 4,4′-bipyridine ligands 2022 physics, materials and applications Amsterdam [u.a.] (DE-627)ELV007843747 volume:98 year:2021 pages:0 https://doi.org/10.1016/j.orgel.2021.106306 Volltext GBV_USEFLAG_U GBV_ELV SYSFLAG_U SSG-OLC-PHA 35.00 Chemie: Allgemeines VZ AR 98 2021 0 |
| allfieldsGer |
10.1016/j.orgel.2021.106306 doi /cbs_pica/cbs_olc/import_discovery/elsevier/einzuspielen/GBV00000000001488.pica (DE-627)ELV054966930 (ELSEVIER)S1566-1199(21)00243-3 DE-627 ger DE-627 rakwb eng 540 VZ 35.00 bkl Xiang, Li verfasserin aut X-ray Sensitive hybrid organic photodetectors with embedded CsPbBr3 perovskite quantum dots 2021transfer abstract nicht spezifiziert zzz rdacontent nicht spezifiziert z rdamedia nicht spezifiziert zu rdacarrier X-ray detection is an important technology for medical diagnosis as well as industrial and security inspections. While today's commercial X-ray detectors are bulky, photodetectors based on organic semiconductors have attracted increasing attention owing to their low temperature processing capabilities, flexibility and low cost. Nonetheless, the low X-ray attenuation coefficient of organic semiconductors still hinders their practical application. Herein, a new organic-inorganic hybrid strategy is proposed to improve the X-ray sensitivity of organic photodetectors (OPDs). A solution-processed X-ray sensitive hybrid OPD is fabricated by embedding CsPbBr3 quantum dots (QDs) into a P3HT:PC61BM bulk heterojunction photodiode. The QDs, acting as embedded scintillators in the organic active layer, maintain a high radioluminescence. The proposed hybrid structure enables indirect X-ray detection in a comprehensive manner. These hybrid photodetectors exhibit suppressed dark current densities in the range of tens of picoamperes per square centimeters for different weight ratios of blended QDs. The best OPD achieves a sensitivity of 229.6 e nGy−1 mm−2 (3.67 μC Gy−1 cm−2) and a dark current of 23.3 pA cm−2 at a low operating voltage (−3 V) for 20–80 kV “soft” X-rays, thus representing great potential for the development of next generation low cost, portable, and highly sensitive X-ray detectors. X-ray detection is an important technology for medical diagnosis as well as industrial and security inspections. While today's commercial X-ray detectors are bulky, photodetectors based on organic semiconductors have attracted increasing attention owing to their low temperature processing capabilities, flexibility and low cost. Nonetheless, the low X-ray attenuation coefficient of organic semiconductors still hinders their practical application. Herein, a new organic-inorganic hybrid strategy is proposed to improve the X-ray sensitivity of organic photodetectors (OPDs). A solution-processed X-ray sensitive hybrid OPD is fabricated by embedding CsPbBr3 quantum dots (QDs) into a P3HT:PC61BM bulk heterojunction photodiode. The QDs, acting as embedded scintillators in the organic active layer, maintain a high radioluminescence. The proposed hybrid structure enables indirect X-ray detection in a comprehensive manner. These hybrid photodetectors exhibit suppressed dark current densities in the range of tens of picoamperes per square centimeters for different weight ratios of blended QDs. The best OPD achieves a sensitivity of 229.6 e nGy−1 mm−2 (3.67 μC Gy−1 cm−2) and a dark current of 23.3 pA cm−2 at a low operating voltage (−3 V) for 20–80 kV “soft” X-rays, thus representing great potential for the development of next generation low cost, portable, and highly sensitive X-ray detectors. Perovskite Elsevier Quantum dot Elsevier Photodetectors Elsevier X-ray Elsevier Organic photodiode Elsevier Huang, Xuekai oth Wang, Ya oth Xin, Zhilong oth Chai, Gaoda oth Xu, Yangbing oth Wang, Kai oth Chen, Jun oth Liu, Chuan oth Wang, Xinwei oth Zhang, Shengdong oth Zhou, Hang oth Enthalten in Elsevier Science saleh, Dalia I ELSEVIER Ultrasound-assisted synthesis and biological activity of nanosized supramolecular coordination polymers of silver(I) with chloride, thiocyanate, and 4,4′-bipyridine ligands 2022 physics, materials and applications Amsterdam [u.a.] (DE-627)ELV007843747 volume:98 year:2021 pages:0 https://doi.org/10.1016/j.orgel.2021.106306 Volltext GBV_USEFLAG_U GBV_ELV SYSFLAG_U SSG-OLC-PHA 35.00 Chemie: Allgemeines VZ AR 98 2021 0 |
| allfieldsSound |
10.1016/j.orgel.2021.106306 doi /cbs_pica/cbs_olc/import_discovery/elsevier/einzuspielen/GBV00000000001488.pica (DE-627)ELV054966930 (ELSEVIER)S1566-1199(21)00243-3 DE-627 ger DE-627 rakwb eng 540 VZ 35.00 bkl Xiang, Li verfasserin aut X-ray Sensitive hybrid organic photodetectors with embedded CsPbBr3 perovskite quantum dots 2021transfer abstract nicht spezifiziert zzz rdacontent nicht spezifiziert z rdamedia nicht spezifiziert zu rdacarrier X-ray detection is an important technology for medical diagnosis as well as industrial and security inspections. While today's commercial X-ray detectors are bulky, photodetectors based on organic semiconductors have attracted increasing attention owing to their low temperature processing capabilities, flexibility and low cost. Nonetheless, the low X-ray attenuation coefficient of organic semiconductors still hinders their practical application. Herein, a new organic-inorganic hybrid strategy is proposed to improve the X-ray sensitivity of organic photodetectors (OPDs). A solution-processed X-ray sensitive hybrid OPD is fabricated by embedding CsPbBr3 quantum dots (QDs) into a P3HT:PC61BM bulk heterojunction photodiode. The QDs, acting as embedded scintillators in the organic active layer, maintain a high radioluminescence. The proposed hybrid structure enables indirect X-ray detection in a comprehensive manner. These hybrid photodetectors exhibit suppressed dark current densities in the range of tens of picoamperes per square centimeters for different weight ratios of blended QDs. The best OPD achieves a sensitivity of 229.6 e nGy−1 mm−2 (3.67 μC Gy−1 cm−2) and a dark current of 23.3 pA cm−2 at a low operating voltage (−3 V) for 20–80 kV “soft” X-rays, thus representing great potential for the development of next generation low cost, portable, and highly sensitive X-ray detectors. X-ray detection is an important technology for medical diagnosis as well as industrial and security inspections. While today's commercial X-ray detectors are bulky, photodetectors based on organic semiconductors have attracted increasing attention owing to their low temperature processing capabilities, flexibility and low cost. Nonetheless, the low X-ray attenuation coefficient of organic semiconductors still hinders their practical application. Herein, a new organic-inorganic hybrid strategy is proposed to improve the X-ray sensitivity of organic photodetectors (OPDs). A solution-processed X-ray sensitive hybrid OPD is fabricated by embedding CsPbBr3 quantum dots (QDs) into a P3HT:PC61BM bulk heterojunction photodiode. The QDs, acting as embedded scintillators in the organic active layer, maintain a high radioluminescence. The proposed hybrid structure enables indirect X-ray detection in a comprehensive manner. These hybrid photodetectors exhibit suppressed dark current densities in the range of tens of picoamperes per square centimeters for different weight ratios of blended QDs. The best OPD achieves a sensitivity of 229.6 e nGy−1 mm−2 (3.67 μC Gy−1 cm−2) and a dark current of 23.3 pA cm−2 at a low operating voltage (−3 V) for 20–80 kV “soft” X-rays, thus representing great potential for the development of next generation low cost, portable, and highly sensitive X-ray detectors. Perovskite Elsevier Quantum dot Elsevier Photodetectors Elsevier X-ray Elsevier Organic photodiode Elsevier Huang, Xuekai oth Wang, Ya oth Xin, Zhilong oth Chai, Gaoda oth Xu, Yangbing oth Wang, Kai oth Chen, Jun oth Liu, Chuan oth Wang, Xinwei oth Zhang, Shengdong oth Zhou, Hang oth Enthalten in Elsevier Science saleh, Dalia I ELSEVIER Ultrasound-assisted synthesis and biological activity of nanosized supramolecular coordination polymers of silver(I) with chloride, thiocyanate, and 4,4′-bipyridine ligands 2022 physics, materials and applications Amsterdam [u.a.] (DE-627)ELV007843747 volume:98 year:2021 pages:0 https://doi.org/10.1016/j.orgel.2021.106306 Volltext GBV_USEFLAG_U GBV_ELV SYSFLAG_U SSG-OLC-PHA 35.00 Chemie: Allgemeines VZ AR 98 2021 0 |
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Enthalten in Ultrasound-assisted synthesis and biological activity of nanosized supramolecular coordination polymers of silver(I) with chloride, thiocyanate, and 4,4′-bipyridine ligands Amsterdam [u.a.] volume:98 year:2021 pages:0 |
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Enthalten in Ultrasound-assisted synthesis and biological activity of nanosized supramolecular coordination polymers of silver(I) with chloride, thiocyanate, and 4,4′-bipyridine ligands Amsterdam [u.a.] volume:98 year:2021 pages:0 |
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X-ray Sensitive hybrid organic photodetectors with embedded CsPbBr3 perovskite quantum dots |
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X-ray detection is an important technology for medical diagnosis as well as industrial and security inspections. While today's commercial X-ray detectors are bulky, photodetectors based on organic semiconductors have attracted increasing attention owing to their low temperature processing capabilities, flexibility and low cost. Nonetheless, the low X-ray attenuation coefficient of organic semiconductors still hinders their practical application. Herein, a new organic-inorganic hybrid strategy is proposed to improve the X-ray sensitivity of organic photodetectors (OPDs). A solution-processed X-ray sensitive hybrid OPD is fabricated by embedding CsPbBr3 quantum dots (QDs) into a P3HT:PC61BM bulk heterojunction photodiode. The QDs, acting as embedded scintillators in the organic active layer, maintain a high radioluminescence. The proposed hybrid structure enables indirect X-ray detection in a comprehensive manner. These hybrid photodetectors exhibit suppressed dark current densities in the range of tens of picoamperes per square centimeters for different weight ratios of blended QDs. The best OPD achieves a sensitivity of 229.6 e nGy−1 mm−2 (3.67 μC Gy−1 cm−2) and a dark current of 23.3 pA cm−2 at a low operating voltage (−3 V) for 20–80 kV “soft” X-rays, thus representing great potential for the development of next generation low cost, portable, and highly sensitive X-ray detectors. |
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X-ray detection is an important technology for medical diagnosis as well as industrial and security inspections. While today's commercial X-ray detectors are bulky, photodetectors based on organic semiconductors have attracted increasing attention owing to their low temperature processing capabilities, flexibility and low cost. Nonetheless, the low X-ray attenuation coefficient of organic semiconductors still hinders their practical application. Herein, a new organic-inorganic hybrid strategy is proposed to improve the X-ray sensitivity of organic photodetectors (OPDs). A solution-processed X-ray sensitive hybrid OPD is fabricated by embedding CsPbBr3 quantum dots (QDs) into a P3HT:PC61BM bulk heterojunction photodiode. The QDs, acting as embedded scintillators in the organic active layer, maintain a high radioluminescence. The proposed hybrid structure enables indirect X-ray detection in a comprehensive manner. These hybrid photodetectors exhibit suppressed dark current densities in the range of tens of picoamperes per square centimeters for different weight ratios of blended QDs. The best OPD achieves a sensitivity of 229.6 e nGy−1 mm−2 (3.67 μC Gy−1 cm−2) and a dark current of 23.3 pA cm−2 at a low operating voltage (−3 V) for 20–80 kV “soft” X-rays, thus representing great potential for the development of next generation low cost, portable, and highly sensitive X-ray detectors. |
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X-ray detection is an important technology for medical diagnosis as well as industrial and security inspections. While today's commercial X-ray detectors are bulky, photodetectors based on organic semiconductors have attracted increasing attention owing to their low temperature processing capabilities, flexibility and low cost. Nonetheless, the low X-ray attenuation coefficient of organic semiconductors still hinders their practical application. Herein, a new organic-inorganic hybrid strategy is proposed to improve the X-ray sensitivity of organic photodetectors (OPDs). A solution-processed X-ray sensitive hybrid OPD is fabricated by embedding CsPbBr3 quantum dots (QDs) into a P3HT:PC61BM bulk heterojunction photodiode. The QDs, acting as embedded scintillators in the organic active layer, maintain a high radioluminescence. The proposed hybrid structure enables indirect X-ray detection in a comprehensive manner. These hybrid photodetectors exhibit suppressed dark current densities in the range of tens of picoamperes per square centimeters for different weight ratios of blended QDs. The best OPD achieves a sensitivity of 229.6 e nGy−1 mm−2 (3.67 μC Gy−1 cm−2) and a dark current of 23.3 pA cm−2 at a low operating voltage (−3 V) for 20–80 kV “soft” X-rays, thus representing great potential for the development of next generation low cost, portable, and highly sensitive X-ray detectors. |
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