Tuning the nanostructures and optical properties of undoped and N-doped ZnO by supercritical fluid treatment

Treatment of ZnO films in a supercritical fluid (SCF) has been reported to improve the performance of devices in which the treated ZnO films are incorporated; however, the mechanism of this improvement remains unclear. In this paper, we study the transformation of the surface morphologies and emissi...
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Autor*in:	Yaping Li [verfasserIn] Hui-Qiong Wang [verfasserIn] Tian-Jian Chu [verfasserIn] Yu-Chiuan Li [verfasserIn] Xiaojun Li [verfasserIn] Xiaxia Liao [verfasserIn] Xiaodan Wang [verfasserIn] Hua Zhou [verfasserIn] Junyong Kang [verfasserIn] Kuan-Chang Chang [verfasserIn] Ting-Chang Chang [verfasserIn] Tsung-Ming Tsai [verfasserIn] Jin-Cheng Zheng [verfasserIn]

Format:	E-Artikel
Sprache:	Englisch

Erschienen:	2018

Übergeordnetes Werk:	In: AIP Advances - AIP Publishing LLC, 2011, 8(2018), 5, Seite 055310-055310-10
Übergeordnetes Werk:	volume:8 ; year:2018 ; number:5 ; pages:055310-055310-10

Links:	Link aufrufen Link aufrufen Link aufrufen Journal toc

DOI / URN:	10.1063/1.5026446

Katalog-ID:	DOAJ05277404X

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callnumber-first	Q - Science
author	Yaping Li
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topic_title	QC1-999 Tuning the nanostructures and optical properties of undoped and N-doped ZnO by supercritical fluid treatment
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title	Tuning the nanostructures and optical properties of undoped and N-doped ZnO by supercritical fluid treatment
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title_full	Tuning the nanostructures and optical properties of undoped and N-doped ZnO by supercritical fluid treatment
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author_browse	Yaping Li Hui-Qiong Wang Tian-Jian Chu Yu-Chiuan Li Xiaojun Li Xiaxia Liao Xiaodan Wang Hua Zhou Junyong Kang Kuan-Chang Chang Ting-Chang Chang Tsung-Ming Tsai Jin-Cheng Zheng
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title_sort	tuning the nanostructures and optical properties of undoped and n-doped zno by supercritical fluid treatment
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title_auth	Tuning the nanostructures and optical properties of undoped and N-doped ZnO by supercritical fluid treatment
abstract	Treatment of ZnO films in a supercritical fluid (SCF) has been reported to improve the performance of devices in which the treated ZnO films are incorporated; however, the mechanism of this improvement remains unclear. In this paper, we study the transformation of the surface morphologies and emission properties of ZnO films before and after SCF treatment, establishing the relationship between the treated and untreated structures and thereby enabling tuning of the catalytic or opto-electronic performance of ZnO films or ZnO-film-based devices. Both undoped and N-doped ZnO nanostructures generated by SCF treatment of films are investigated using techniques to characterize their surface morphology (scanning electron microscopy (SEM) and atomic force microscopy (AFM)) as well as room-temperature photoluminescence (RT-PL) spectroscopy. The water-mixed supercritical CO2 (W-SCCO2) technology was found to form nanostructures in ZnO films through a self-catalyzed process enabled by the Zn-rich conditions in the ZnO films. The W-SCCO2 was also found to promote the inhibition of defect luminescence by introducing -OH groups onto the films. Two models are proposed to explain the effects of the treatment with W-SCCO2. This work demonstrates that the W-SCCO2 technology can be used as an effective tool for the nanodesign and property enhancement of functional metal oxides.
abstractGer	Treatment of ZnO films in a supercritical fluid (SCF) has been reported to improve the performance of devices in which the treated ZnO films are incorporated; however, the mechanism of this improvement remains unclear. In this paper, we study the transformation of the surface morphologies and emission properties of ZnO films before and after SCF treatment, establishing the relationship between the treated and untreated structures and thereby enabling tuning of the catalytic or opto-electronic performance of ZnO films or ZnO-film-based devices. Both undoped and N-doped ZnO nanostructures generated by SCF treatment of films are investigated using techniques to characterize their surface morphology (scanning electron microscopy (SEM) and atomic force microscopy (AFM)) as well as room-temperature photoluminescence (RT-PL) spectroscopy. The water-mixed supercritical CO2 (W-SCCO2) technology was found to form nanostructures in ZnO films through a self-catalyzed process enabled by the Zn-rich conditions in the ZnO films. The W-SCCO2 was also found to promote the inhibition of defect luminescence by introducing -OH groups onto the films. Two models are proposed to explain the effects of the treatment with W-SCCO2. This work demonstrates that the W-SCCO2 technology can be used as an effective tool for the nanodesign and property enhancement of functional metal oxides.
abstract_unstemmed	Treatment of ZnO films in a supercritical fluid (SCF) has been reported to improve the performance of devices in which the treated ZnO films are incorporated; however, the mechanism of this improvement remains unclear. In this paper, we study the transformation of the surface morphologies and emission properties of ZnO films before and after SCF treatment, establishing the relationship between the treated and untreated structures and thereby enabling tuning of the catalytic or opto-electronic performance of ZnO films or ZnO-film-based devices. Both undoped and N-doped ZnO nanostructures generated by SCF treatment of films are investigated using techniques to characterize their surface morphology (scanning electron microscopy (SEM) and atomic force microscopy (AFM)) as well as room-temperature photoluminescence (RT-PL) spectroscopy. The water-mixed supercritical CO2 (W-SCCO2) technology was found to form nanostructures in ZnO films through a self-catalyzed process enabled by the Zn-rich conditions in the ZnO films. The W-SCCO2 was also found to promote the inhibition of defect luminescence by introducing -OH groups onto the films. Two models are proposed to explain the effects of the treatment with W-SCCO2. This work demonstrates that the W-SCCO2 technology can be used as an effective tool for the nanodesign and property enhancement of functional metal oxides.
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title_short	Tuning the nanostructures and optical properties of undoped and N-doped ZnO by supercritical fluid treatment
url	https://doi.org/10.1063/1.5026446 https://doaj.org/article/704a03a1cb0d4ebca57be015f722687a http://dx.doi.org/10.1063/1.5026446 https://doaj.org/toc/2158-3226
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author2	Hui-Qiong Wang Tian-Jian Chu Yu-Chiuan Li Xiaojun Li Xiaxia Liao Xiaodan Wang Hua Zhou Junyong Kang Kuan-Chang Chang Ting-Chang Chang Tsung-Ming Tsai Jin-Cheng Zheng
author2Str	Hui-Qiong Wang Tian-Jian Chu Yu-Chiuan Li Xiaojun Li Xiaxia Liao Xiaodan Wang Hua Zhou Junyong Kang Kuan-Chang Chang Ting-Chang Chang Tsung-Ming Tsai Jin-Cheng Zheng
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up_date	2024-07-03T13:59:02.834Z
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Tuning the nanostructures and optical properties of undoped and N-doped ZnO by supercritical fluid treatment

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