Effects of Impurities on Operational Mechanism of Organic Bulk Heterojunction Solar Cells

Photoconductive atomic force microscopy in conjunction with transient absorption spectroscopy and charge transport study were used to investigate the effect of impurities (TCNQ and PC84BM) on the performance of low band gap conjugated polymer and fullerene solar cells to gain insight into whether di...

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Published inAdvanced materials (Weinheim) Vol. 25; no. 12; pp. 1706 - 1712
Main Authors Kaake, Loren, Dang, Xuan-Dung, Leong, Wei Lin, Zhang, Yuan, Heeger, Alan, Nguyen, Thuc-Quyen
Format Journal Article
LanguageEnglish
Published Weinheim WILEY-VCH Verlag 25.03.2013
WILEY‐VCH Verlag
Subjects
Absorption spectroscopy
charge generation and recombination
charge transfer states
Electric Conductivity
Electric Power Supplies
Fullerenes - chemistry
impurities
Nitriles - chemistry
open-circuit voltages
organic solar cells
Solar Energy
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Summary:Photoconductive atomic force microscopy in conjunction with transient absorption spectroscopy and charge transport study were used to investigate the effect of impurities (TCNQ and PC84BM) on the performance of low band gap conjugated polymer and fullerene solar cells to gain insight into whether differing impurity shapes may lead to different loss mechanisms.
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ISSN:0935-9648
1521-4095
DOI:10.1002/adma.201203786