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Poly (thienylene methine) grafted nanocrystalline TiO2 based hybrid solar cells

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Abstract

A novel hybrid solar cell fabricated from TiO2 and in situ polymerized poly (thienylene methane) (PTBBQ) onto the surface of TiO2 was described. 1HNMR, FTIR, UV–Vis absorption, thermal and electrochemical properties of PTBBQ were investigated, and the surface morphology of TiO2/in situ polymerized PTBBQ film was studied via AFM contact mode. Device I/V characterizations with and without in situ polymerized PTBBQ were measured. Efficiency improvements were observed in the in situ polymerized PTBBQ/TiO2 system, and such device showed a short-circuit current density of 1.15 mA/cm2, an open-circuit voltage of 0.50 V, a fill factor of 0.50, and a energy conversion efficiency of 0.29% at A.M. 1.5 solar illumination (100 mW/cm2).

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Acknowledgments

We greatly acknowledge Prof. Sariciftci from Linz (LIOS), Austria, for advising and discussions. Also we would like to thank Dr. Serap Günes from LIOS for the AFM image. Funding was provided by the National Natural Science Foundation of China (Grant No. 20804038), the Scientific Research Foundation for the Returned Overseas Chinese Scholars, State Education Ministry (No. [2007] 1108), and Major Scientific and Technological Project and Priority Themes of Zhejiang Science and Technology Department (2009C01025-1).

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Authors and Affiliations

  1. Institute for Organic Photovoltaic Materials and Devices, School of Biological and Chemical Engineering, Zhejiang University of Science and Technology, Hangzhou, 310023, People’s Republic of China

    Shengli Lu, Junfeng Niu, Ling Zeng, Heyang Liu & Xianliang Zhao

  2. Program in Materials Science and Engineering, Norfolk State University, Norfolk, VA, 23504, USA

    Sam-Shajing Sun

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  1. Shengli Lu
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  2. Sam-Shajing Sun
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  3. Junfeng Niu
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  4. Ling Zeng
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  5. Heyang Liu
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Correspondence to Shengli Lu.

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Lu, S., Sun, SS., Niu, J. et al. Poly (thienylene methine) grafted nanocrystalline TiO2 based hybrid solar cells. J Mater Sci: Mater Electron 23, 251–256 (2012). https://doi.org/10.1007/s10854-011-0397-7

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  • DOI: https://doi.org/10.1007/s10854-011-0397-7

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