Enhanced Power Conversion Efficiency of Inverted Organic Solar Cells with a Ga-Doped ZnO Nanostructured Thin Film Prepared Using Aqueous Solution

Enhanced Power Conversion Efficiency of Inverted Organic Solar Cells with a Ga-Doped ZnO Nanostructured Thin Film Prepared Using Aqueous Solution

A dramatic increase in the power conversion efficiency (PCE) of inverted organic solar cells (IOSCs) is realized by a gallium (Ga)-doped zinc oxide (GZO) buffer layer acting as an electron-transport layer. The GZO nanostructured thin-film buffer layer was synthesized via an aqueous solution method a...

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Veröffentlicht in:Journal of physical chemistry. C 2010-09, Vol.114 (37), p.15782-15785
Hauptverfasser: Shin, Kyung-Sik, Lee, Kang-Hyuck, Lee, Hyun Hwi, Choi, Dukhyun, Kim, Sang-Woo
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C: Electron Transport, Optical and Electronic Devices, Hard Matter
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container_end_page 15785
container_issue 37
container_start_page 15782
container_title Journal of physical chemistry. C
container_volume 114
creator Shin, Kyung-Sik
Lee, Kang-Hyuck
Lee, Hyun Hwi
Choi, Dukhyun
Kim, Sang-Woo
description A dramatic increase in the power conversion efficiency (PCE) of inverted organic solar cells (IOSCs) is realized by a gallium (Ga)-doped zinc oxide (GZO) buffer layer acting as an electron-transport layer. The GZO nanostructured thin-film buffer layer was synthesized via an aqueous solution method at 90 °C. Both an increase of electrical conductivity and a smooth surface morphology were realized by Ga doping. The PCE of a GZO-based IOSC was improved by about 110% at simulated air mass 1.5 global full-sun illumination compared with that of undoped zinc oxide-based IOSCs. The increase of the short-circuit current in GZO-based IOSCs is due to the higher electron conductivity and favorable surface morphology of the buffer layer through Ga-doping, resulting in the dramatic enhancement of the PCE.
doi_str_mv 10.1021/jp1013658
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title Enhanced Power Conversion Efficiency of Inverted Organic Solar Cells with a Ga-Doped ZnO Nanostructured Thin Film Prepared Using Aqueous Solution
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