Polyaniline on crystalline silicon heterojunction solar cells

被引:61
作者
Wang, Weining [1 ]
Schiff, E. A. [1 ]
机构
[1] Syracuse Univ, Dept Phys, Syracuse, NY 13244 USA
关键词
D O I
10.1063/1.2789785
中图分类号
O59 [应用物理学];
学科分类号
摘要
Organic/inorganic heterojunction solar cells were fabricated on the (100) face of n-type silicon crystals using acid-doped polyaniline (PANI) with widely varying conductivities. For films with conductivities below 10(-1) S/cm, the open-circuit voltage V-OC increases with increasing film conductivity as expected when V-OC is limited by the work function of the film. Extrapolation of these results to the higher conductivity films indicates that PANI could support V-OC of 0.7 V or larger. V-OC measurements for the cells with higher conductivity PANI saturated at 0.51 V. We speculate that uncontrolled surface states at the PANI/Si interface are reducing these values. (c) 2007 American Institute of Physics.
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