Experimental determination of the rate law for charge carrier decay in a polythiophene: Fullerene solar cell

被引:478
作者
Shuttle, C. G. [1 ]
O'Regan, B. [1 ]
Ballantyne, A. M. [2 ]
Nelson, J. [2 ]
Bradley, D. D. C. [2 ]
de Mello, J. [1 ]
Durrant, J. R. [1 ]
机构
[1] Univ London Imperial Coll Sci Technol & Med, Dept Chem, Kensington SW7 2AZ, England
[2] Univ London Imperial Coll Sci Technol & Med, Dept Phys, Kensington SW7 2AZ, England
基金
英国工程与自然科学研究理事会;
关键词
D O I
10.1063/1.2891871
中图分类号
O59 [应用物理学];
学科分类号
摘要
We use transient photovoltage and differential charging experiments, complemented by transient absorption data, to determine charge carrier lifetimes and densities in a poly(3-hexylthiophene): methanofullerene solar cell at V(oc) as a function of white light-bias intensity. For a typical device, the charge carrier decay dynamics are observed to exhibit an approximately third order dependence on charge density (dn/dt proportional to n(3)). (c) 2008 American Institute of Physics.
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页数:3
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