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Efficient Polymer Solar Cells Based on Solution-processed Vanadium Oxide as Hole-extracting Layer

Biao Xiao

Institute of Polymer Optoelectronic Materials and Devices, State Key Laboratory of Luminescent Materials and Devices, South China University of Technology, Guangzhou, Guangdong 510640, China

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Xiaoping Cheng,

Xiaoping Cheng

Institute of Polymer Optoelectronic Materials and Devices, State Key Laboratory of Luminescent Materials and Devices, South China University of Technology, Guangzhou, Guangdong 510640, China

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Baofeng Zhao,

Baofeng Zhao

Institute of Polymer Optoelectronic Materials and Devices, State Key Laboratory of Luminescent Materials and Devices, South China University of Technology, Guangzhou, Guangdong 510640, China

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Hongbin Wu,

Corresponding Author

Hongbin Wu

[email protected]

Institute of Polymer Optoelectronic Materials and Devices, State Key Laboratory of Luminescent Materials and Devices, South China University of Technology, Guangzhou, Guangdong 510640, China

Institute of Polymer Optoelectronic Materials and Devices, State Key Laboratory of Luminescent Materials and Devices, South China University of Technology, Guangzhou, Guangdong 510640, China, Tel.: 0086-20-87114636-24; Fax: 0086-20-87110606Search for more papers by this author

Biao Xiao,

Biao Xiao

Institute of Polymer Optoelectronic Materials and Devices, State Key Laboratory of Luminescent Materials and Devices, South China University of Technology, Guangzhou, Guangdong 510640, China

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Xiaoping Cheng,

Xiaoping Cheng

Institute of Polymer Optoelectronic Materials and Devices, State Key Laboratory of Luminescent Materials and Devices, South China University of Technology, Guangzhou, Guangdong 510640, China

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Baofeng Zhao,

Baofeng Zhao

Institute of Polymer Optoelectronic Materials and Devices, State Key Laboratory of Luminescent Materials and Devices, South China University of Technology, Guangzhou, Guangdong 510640, China

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Hongbin Wu,

Corresponding Author

Hongbin Wu

[email protected]

Institute of Polymer Optoelectronic Materials and Devices, State Key Laboratory of Luminescent Materials and Devices, South China University of Technology, Guangzhou, Guangdong 510640, China

First published: 14 November 2013

https://doi.org/10.1002/cjoc.201300626

Citations: 2

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Abstract

Here we reported the fabrication of efficient polymer solar cells from regioregular poly(3-hexylthiophene) (P3HT):fullerene derivative [6,6]-phenyl-C₆₁ butyric acid methyl ester (PC₆₁BM) mixtures, in which solution-processed vanadium oxide (VOx) was used as a hole-extracting layer (HEL). The obtained devices exhibited a high power conversion efficiency of 3.96%, and can be enhanced to 4.06% and 4.16%, respectively, when two types of PEDOT:PSS with different conductivities were used in conjunction with the VOx layer. All the VOx-based devices showed a high fill factor (FF) over 70%, which was ascribed to efficient hole extracting efficiency associated with the solution-processed VOx hole-extracting layer. The origins of the improvement were also studied by transmission spectra, atomic force microscope (AFM), and capacitance-voltage characteristics.

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Volume31, Issue11

Special Issue:Organic Solids

November, 2013

Pages 1423-1427

Efficient Polymer Solar Cells Based on Solution-processed Vanadium Oxide as Hole-extracting Layer

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Efficient Polymer Solar Cells Based on Solution-processed Vanadium Oxide as Hole-extracting Layer

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