Four color stacked white organic light-emitting diodes utilizing the concept of triplet harvesting
Abstract Organic light-emitting diodes (OLEDs) are developing into a competitive alternative to conventional light sources. Nevertheless, OLEDs need further improvement in terms of efficiency and color rendering for lighting applications. Fluorescent blue emitters allow deep blue emission and high s...
Ausführliche Beschreibung
Gespeichert in:
| Autor*in: |
Rosenow, Th. C. [verfasserIn] Olthof, S. [verfasserIn] Reineke, S. [verfasserIn] Lüssem, B. [verfasserIn] Leo, K. [verfasserIn] |
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| Format: |
E-Artikel |
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| Sprache: |
Englisch |
| Erschienen: |
2010 |
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| Schlagwörter: |
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| Übergeordnetes Werk: |
Enthalten in: MRS online proceedings library - Warrendale, Pa. : MRS, 1998, 1286(2010), 1 vom: Dez. |
|---|---|
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volume:1286 ; year:2010 ; number:1 ; month:12 |
| Links: |
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| DOI / URN: |
10.1557/opl.2011.3 |
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| 520 | |a Abstract Organic light-emitting diodes (OLEDs) are developing into a competitive alternative to conventional light sources. Nevertheless, OLEDs need further improvement in terms of efficiency and color rendering for lighting applications. Fluorescent blue emitters allow deep blue emission and high stability, while phosphorescent blue emitter still suffer from insufficient stability. The concept of triplet harvesting is the key for achieving internal quantum efficiencies up to 100 % and simultaneously benefiting from the advantages of fluorescent blue emitters. Here, we present a stacked OLED consisting of two units comprising four different emitters in total. The first unit takes advantage of the concept of triplet harvesting and combines the light emission of a fluorescent blue and a phosphorescent red emitter. The second unit emits light from a single emission layer consisting of a matrix doped with phosphorescent green and yellow emitters. With this approach, we reach white color coordinates close to the standard illuminant A and a color rendering index of above 75. The presented devices are characterized by high luminous efficacies of above 30 lm/W on standard glass substrates without outcoupling enhancement. | ||
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| 700 | 1 | |a Leo, K. |e verfasserin |4 aut | |
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10.1557/opl.2011.3 doi (DE-627)SPR043048536 (DE-599)SPRopl.2011.3-e (SPR)opl.2011.3-e DE-627 ger DE-627 rakwb eng 670 ASE Rosenow, Th. C. verfasserin aut Four color stacked white organic light-emitting diodes utilizing the concept of triplet harvesting 2010 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier Abstract Organic light-emitting diodes (OLEDs) are developing into a competitive alternative to conventional light sources. Nevertheless, OLEDs need further improvement in terms of efficiency and color rendering for lighting applications. Fluorescent blue emitters allow deep blue emission and high stability, while phosphorescent blue emitter still suffer from insufficient stability. The concept of triplet harvesting is the key for achieving internal quantum efficiencies up to 100 % and simultaneously benefiting from the advantages of fluorescent blue emitters. Here, we present a stacked OLED consisting of two units comprising four different emitters in total. The first unit takes advantage of the concept of triplet harvesting and combines the light emission of a fluorescent blue and a phosphorescent red emitter. The second unit emits light from a single emission layer consisting of a matrix doped with phosphorescent green and yellow emitters. With this approach, we reach white color coordinates close to the standard illuminant A and a color rendering index of above 75. The presented devices are characterized by high luminous efficacies of above 30 lm/W on standard glass substrates without outcoupling enhancement. OLED (dpeaa)DE-He213 illumination (dpeaa)DE-He213 white (dpeaa)DE-He213 stacked (dpeaa)DE-He213 triplet harvesting (dpeaa)DE-He213 luminous efficacy (dpeaa)DE-He213 Olthof, S. verfasserin aut Reineke, S. verfasserin aut Lüssem, B. verfasserin aut Leo, K. verfasserin aut Enthalten in MRS online proceedings library Warrendale, Pa. : MRS, 1998 1286(2010), 1 vom: Dez. (DE-627)57782046X (DE-600)2451008-7 1946-4274 nnns volume:1286 year:2010 number:1 month:12 https://dx.doi.org/10.1557/opl.2011.3 lizenzpflichtig Volltext GBV_USEFLAG_A SYSFLAG_A GBV_SPRINGER GBV_ILN_2005 AR 1286 2010 1 12 |
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10.1557/opl.2011.3 doi (DE-627)SPR043048536 (DE-599)SPRopl.2011.3-e (SPR)opl.2011.3-e DE-627 ger DE-627 rakwb eng 670 ASE Rosenow, Th. C. verfasserin aut Four color stacked white organic light-emitting diodes utilizing the concept of triplet harvesting 2010 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier Abstract Organic light-emitting diodes (OLEDs) are developing into a competitive alternative to conventional light sources. Nevertheless, OLEDs need further improvement in terms of efficiency and color rendering for lighting applications. Fluorescent blue emitters allow deep blue emission and high stability, while phosphorescent blue emitter still suffer from insufficient stability. The concept of triplet harvesting is the key for achieving internal quantum efficiencies up to 100 % and simultaneously benefiting from the advantages of fluorescent blue emitters. Here, we present a stacked OLED consisting of two units comprising four different emitters in total. The first unit takes advantage of the concept of triplet harvesting and combines the light emission of a fluorescent blue and a phosphorescent red emitter. The second unit emits light from a single emission layer consisting of a matrix doped with phosphorescent green and yellow emitters. With this approach, we reach white color coordinates close to the standard illuminant A and a color rendering index of above 75. The presented devices are characterized by high luminous efficacies of above 30 lm/W on standard glass substrates without outcoupling enhancement. OLED (dpeaa)DE-He213 illumination (dpeaa)DE-He213 white (dpeaa)DE-He213 stacked (dpeaa)DE-He213 triplet harvesting (dpeaa)DE-He213 luminous efficacy (dpeaa)DE-He213 Olthof, S. verfasserin aut Reineke, S. verfasserin aut Lüssem, B. verfasserin aut Leo, K. verfasserin aut Enthalten in MRS online proceedings library Warrendale, Pa. : MRS, 1998 1286(2010), 1 vom: Dez. (DE-627)57782046X (DE-600)2451008-7 1946-4274 nnns volume:1286 year:2010 number:1 month:12 https://dx.doi.org/10.1557/opl.2011.3 lizenzpflichtig Volltext GBV_USEFLAG_A SYSFLAG_A GBV_SPRINGER GBV_ILN_2005 AR 1286 2010 1 12 |
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10.1557/opl.2011.3 doi (DE-627)SPR043048536 (DE-599)SPRopl.2011.3-e (SPR)opl.2011.3-e DE-627 ger DE-627 rakwb eng 670 ASE Rosenow, Th. C. verfasserin aut Four color stacked white organic light-emitting diodes utilizing the concept of triplet harvesting 2010 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier Abstract Organic light-emitting diodes (OLEDs) are developing into a competitive alternative to conventional light sources. Nevertheless, OLEDs need further improvement in terms of efficiency and color rendering for lighting applications. Fluorescent blue emitters allow deep blue emission and high stability, while phosphorescent blue emitter still suffer from insufficient stability. The concept of triplet harvesting is the key for achieving internal quantum efficiencies up to 100 % and simultaneously benefiting from the advantages of fluorescent blue emitters. Here, we present a stacked OLED consisting of two units comprising four different emitters in total. The first unit takes advantage of the concept of triplet harvesting and combines the light emission of a fluorescent blue and a phosphorescent red emitter. The second unit emits light from a single emission layer consisting of a matrix doped with phosphorescent green and yellow emitters. With this approach, we reach white color coordinates close to the standard illuminant A and a color rendering index of above 75. The presented devices are characterized by high luminous efficacies of above 30 lm/W on standard glass substrates without outcoupling enhancement. OLED (dpeaa)DE-He213 illumination (dpeaa)DE-He213 white (dpeaa)DE-He213 stacked (dpeaa)DE-He213 triplet harvesting (dpeaa)DE-He213 luminous efficacy (dpeaa)DE-He213 Olthof, S. verfasserin aut Reineke, S. verfasserin aut Lüssem, B. verfasserin aut Leo, K. verfasserin aut Enthalten in MRS online proceedings library Warrendale, Pa. : MRS, 1998 1286(2010), 1 vom: Dez. (DE-627)57782046X (DE-600)2451008-7 1946-4274 nnns volume:1286 year:2010 number:1 month:12 https://dx.doi.org/10.1557/opl.2011.3 lizenzpflichtig Volltext GBV_USEFLAG_A SYSFLAG_A GBV_SPRINGER GBV_ILN_2005 AR 1286 2010 1 12 |
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10.1557/opl.2011.3 doi (DE-627)SPR043048536 (DE-599)SPRopl.2011.3-e (SPR)opl.2011.3-e DE-627 ger DE-627 rakwb eng 670 ASE Rosenow, Th. C. verfasserin aut Four color stacked white organic light-emitting diodes utilizing the concept of triplet harvesting 2010 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier Abstract Organic light-emitting diodes (OLEDs) are developing into a competitive alternative to conventional light sources. Nevertheless, OLEDs need further improvement in terms of efficiency and color rendering for lighting applications. Fluorescent blue emitters allow deep blue emission and high stability, while phosphorescent blue emitter still suffer from insufficient stability. The concept of triplet harvesting is the key for achieving internal quantum efficiencies up to 100 % and simultaneously benefiting from the advantages of fluorescent blue emitters. Here, we present a stacked OLED consisting of two units comprising four different emitters in total. The first unit takes advantage of the concept of triplet harvesting and combines the light emission of a fluorescent blue and a phosphorescent red emitter. The second unit emits light from a single emission layer consisting of a matrix doped with phosphorescent green and yellow emitters. With this approach, we reach white color coordinates close to the standard illuminant A and a color rendering index of above 75. The presented devices are characterized by high luminous efficacies of above 30 lm/W on standard glass substrates without outcoupling enhancement. OLED (dpeaa)DE-He213 illumination (dpeaa)DE-He213 white (dpeaa)DE-He213 stacked (dpeaa)DE-He213 triplet harvesting (dpeaa)DE-He213 luminous efficacy (dpeaa)DE-He213 Olthof, S. verfasserin aut Reineke, S. verfasserin aut Lüssem, B. verfasserin aut Leo, K. verfasserin aut Enthalten in MRS online proceedings library Warrendale, Pa. : MRS, 1998 1286(2010), 1 vom: Dez. (DE-627)57782046X (DE-600)2451008-7 1946-4274 nnns volume:1286 year:2010 number:1 month:12 https://dx.doi.org/10.1557/opl.2011.3 lizenzpflichtig Volltext GBV_USEFLAG_A SYSFLAG_A GBV_SPRINGER GBV_ILN_2005 AR 1286 2010 1 12 |
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10.1557/opl.2011.3 doi (DE-627)SPR043048536 (DE-599)SPRopl.2011.3-e (SPR)opl.2011.3-e DE-627 ger DE-627 rakwb eng 670 ASE Rosenow, Th. C. verfasserin aut Four color stacked white organic light-emitting diodes utilizing the concept of triplet harvesting 2010 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier Abstract Organic light-emitting diodes (OLEDs) are developing into a competitive alternative to conventional light sources. Nevertheless, OLEDs need further improvement in terms of efficiency and color rendering for lighting applications. Fluorescent blue emitters allow deep blue emission and high stability, while phosphorescent blue emitter still suffer from insufficient stability. The concept of triplet harvesting is the key for achieving internal quantum efficiencies up to 100 % and simultaneously benefiting from the advantages of fluorescent blue emitters. Here, we present a stacked OLED consisting of two units comprising four different emitters in total. The first unit takes advantage of the concept of triplet harvesting and combines the light emission of a fluorescent blue and a phosphorescent red emitter. The second unit emits light from a single emission layer consisting of a matrix doped with phosphorescent green and yellow emitters. With this approach, we reach white color coordinates close to the standard illuminant A and a color rendering index of above 75. The presented devices are characterized by high luminous efficacies of above 30 lm/W on standard glass substrates without outcoupling enhancement. OLED (dpeaa)DE-He213 illumination (dpeaa)DE-He213 white (dpeaa)DE-He213 stacked (dpeaa)DE-He213 triplet harvesting (dpeaa)DE-He213 luminous efficacy (dpeaa)DE-He213 Olthof, S. verfasserin aut Reineke, S. verfasserin aut Lüssem, B. verfasserin aut Leo, K. verfasserin aut Enthalten in MRS online proceedings library Warrendale, Pa. : MRS, 1998 1286(2010), 1 vom: Dez. (DE-627)57782046X (DE-600)2451008-7 1946-4274 nnns volume:1286 year:2010 number:1 month:12 https://dx.doi.org/10.1557/opl.2011.3 lizenzpflichtig Volltext GBV_USEFLAG_A SYSFLAG_A GBV_SPRINGER GBV_ILN_2005 AR 1286 2010 1 12 |
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Abstract Organic light-emitting diodes (OLEDs) are developing into a competitive alternative to conventional light sources. Nevertheless, OLEDs need further improvement in terms of efficiency and color rendering for lighting applications. Fluorescent blue emitters allow deep blue emission and high stability, while phosphorescent blue emitter still suffer from insufficient stability. The concept of triplet harvesting is the key for achieving internal quantum efficiencies up to 100 % and simultaneously benefiting from the advantages of fluorescent blue emitters. Here, we present a stacked OLED consisting of two units comprising four different emitters in total. The first unit takes advantage of the concept of triplet harvesting and combines the light emission of a fluorescent blue and a phosphorescent red emitter. The second unit emits light from a single emission layer consisting of a matrix doped with phosphorescent green and yellow emitters. With this approach, we reach white color coordinates close to the standard illuminant A and a color rendering index of above 75. The presented devices are characterized by high luminous efficacies of above 30 lm/W on standard glass substrates without outcoupling enhancement. |
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Abstract Organic light-emitting diodes (OLEDs) are developing into a competitive alternative to conventional light sources. Nevertheless, OLEDs need further improvement in terms of efficiency and color rendering for lighting applications. Fluorescent blue emitters allow deep blue emission and high stability, while phosphorescent blue emitter still suffer from insufficient stability. The concept of triplet harvesting is the key for achieving internal quantum efficiencies up to 100 % and simultaneously benefiting from the advantages of fluorescent blue emitters. Here, we present a stacked OLED consisting of two units comprising four different emitters in total. The first unit takes advantage of the concept of triplet harvesting and combines the light emission of a fluorescent blue and a phosphorescent red emitter. The second unit emits light from a single emission layer consisting of a matrix doped with phosphorescent green and yellow emitters. With this approach, we reach white color coordinates close to the standard illuminant A and a color rendering index of above 75. The presented devices are characterized by high luminous efficacies of above 30 lm/W on standard glass substrates without outcoupling enhancement. |
| abstract_unstemmed |
Abstract Organic light-emitting diodes (OLEDs) are developing into a competitive alternative to conventional light sources. Nevertheless, OLEDs need further improvement in terms of efficiency and color rendering for lighting applications. Fluorescent blue emitters allow deep blue emission and high stability, while phosphorescent blue emitter still suffer from insufficient stability. The concept of triplet harvesting is the key for achieving internal quantum efficiencies up to 100 % and simultaneously benefiting from the advantages of fluorescent blue emitters. Here, we present a stacked OLED consisting of two units comprising four different emitters in total. The first unit takes advantage of the concept of triplet harvesting and combines the light emission of a fluorescent blue and a phosphorescent red emitter. The second unit emits light from a single emission layer consisting of a matrix doped with phosphorescent green and yellow emitters. With this approach, we reach white color coordinates close to the standard illuminant A and a color rendering index of above 75. The presented devices are characterized by high luminous efficacies of above 30 lm/W on standard glass substrates without outcoupling enhancement. |
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| title_short |
Four color stacked white organic light-emitting diodes utilizing the concept of triplet harvesting |
| url |
https://dx.doi.org/10.1557/opl.2011.3 |
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| author2 |
Olthof, S. Reineke, S. Lüssem, B. Leo, K. |
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Olthof, S. Reineke, S. Lüssem, B. Leo, K. |
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| doi_str |
10.1557/opl.2011.3 |
| up_date |
2024-07-03T16:19:43.482Z |
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