CRCU

Chemical Research in Chinese Universities ›› 2013, Vol. 29 ›› Issue (5): 998-1002.doi: 10.1007/s40242-013-2348-8

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Electronic Structure Effect of Polythiophene Derivatives and Nano N-Zn-Ag/TiO2 on Performance of Organic Thin Film Solar Cell

ZHANG Jing-chang1,2, WEN Yu1, LI Qi-yun1, HAN Zhi-yue1, FU Zhen-hai1, CAO Wei-liang1,2   

  1. 1. State Key Laboratory of Chemical Resource Engineering, Institute of Modern Catalysis, Beijing University of Chemical Technology, Beijing 100029, P. R. China;
    2. Hainan Institute of Science and Technology, Haikou 571126, P. R. China
  • Received:2012-09-12 Revised:2012-12-13 Online:2013-10-01 Published:2013-09-17
  • Contact: ZHANG Jing-chang E-mail:zhangjc1@mail.buct.edu.cn
  • Supported by:

    Supported by the Key Science Planning Program of Hainan Province of China(No.ZDXM20100062), the Research Project of the Department of Education of Hainan Province of China(No.Hj2010-52) and the Nature Science Foundation of Hainan Province of China(No.509013).

Abstract:

Nanocrystal N-Zn-Ag/TiO2 powders were prepared with N-Zn/TiO2 by photo deposition method. A series of pure polymers P3HT[poly(3-hexylthiophene)], P3OT[poly(3-octylthiophene)], P3DT[poly(3-decylthiophene)] and P3DDT[poly(3-dodecylthiophene)], was synthesized, which were used to synthesize p-n type semiconductor materials P3HT/N-Zn-Ag-TiO2, P3OT/N-Zn-Ag-TiO2, P3DT/N-Zn-Ag-TiO2 and P3DDT/N-Zn-Ag-TiO2 by in situ che-mical method. X-Ray diffraction(XRD) and infrared(IR) spectroscopy showed the structure of the polymers and complexes. Ultraviolet-visible(UV-Vis) spectra and cyclic voltammograms(CV) showed the optical and electronic performance of the polymers and complexes. Two new single and double organic thin film heterojunction solar cells were prepared with the above mentioned synthesized powders as raw materials. Current-voltage(I-V) measurements indicate that the conversion efficiency of the single organic thin film heterojunction solar cell is higher than that of the double organic thin film heterojunction solar cells. Single organic thin film heterojunction solar cells based on P3DT/N-Zn-Ag-TiO2 can get a photoelectric conversion efficiency of 0.0408%. The performance of electronic transform between electron donor and acceptor on organic thin film solar cells was researched.

Key words: N-Zn/TiO2, N-Zn-Ag/TiO2, Poly(3-decylthiophene), Electronic structure, Organic thin film heterojunction solar cell