Carrier multiplication in a PbSe nanocrystal and P3HT/PCBM tandem cell

被引:53
作者
Kim, Sung Jin [1 ]
Kim, Won Jin
Cartwright, Alexander N.
Prasad, Paras N. [1 ]
机构
[1] SUNY Buffalo, Dept Elect Engn, Inst Lasers Photon & Biophoton, Dept Chem, Buffalo, NY 14260 USA
关键词
D O I
10.1063/1.2920477
中图分类号
O59 [应用物理学];
学科分类号
摘要
Photoactivation of multiple carrier charge extraction in a tandem cell configuration is demonstrated. An all-solution-processed tandem photovoltaic structure, consisting of a hydrazine treated PbSe nanocrystal film and a P3HT/PCBM bulk-heterojunction solar cell, was fabricated. The PbSe nanocrystal film was used as the top cell to predominantly absorb short wavelength light (UV/blue). The lower P3HT/PCBM cell absorbed the remaining solar energy and supplied photocurrent as well as an electric field that extracts the photogenerated charge from the PbSe layer. Carrier multiplication from excitation of the PbSe film with high energy photons was quantified by selective light bias activation measurements. (C) 2008 American Institute of Physics.
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页数:3
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