Document Detail

Solution-processed vanadium oxide as a hole collection layer on an ITO electrode for high-performance polymer solar cells.
MedLine Citation:
PMID:  23014522     Owner:  NLM     Status:  Publisher    
A solution-processed vanadium oxide (s-VO(x)) anode buffer layer on an indium-tin-oxide (ITO) electrode was used instead of PEDOT:PSS for improving the stability and photovoltaic performance of the polymer solar cells (PSCs). The s-VO(x) layer was prepared by spin-coating a vanadyl acetylacetonate (VO(acac)(2)) isopropyl alcohol solution on the ITO electrode and then thermal annealing at 150 °C for 10 min. The s-VO(x) oxide layer is highly transparent in the visible range and shows effective hole collection property. The photovoltaic performance of the s-VO(x) buffer layer was studied by fabricating the PSCs based on poly(3-hexylthiophene) (P3HT) as an electron donor and four soluble fullerene derivatives, [6,6]-phenyl-C(61)-butyric acid methyl ester (PC(60)BM), [6,6]-phenyl-C(71)-butyric acid methyl ester (PC(70)BM), indene-C(60) bisadduct (IC(60)BA), and indene-C(70) bisadduct (IC(70)BA), as electron acceptors. The PSCs with the s-VO(x) buffer layer show improved performance in comparison with the traditional devices with the PEDOT:PSS buffer layer on ITO, no matter which fullerene derivative was used as an acceptor. The power conversion efficiency of the PSC based on P3HT:IC(70)BA (1 : 1, w/w) with the s-VO(x) anode buffer layer reached 6.35% under the illumination of AM1.5G 100 mW cm(-2).
Zhan'ao Tan; Wenqing Zhang; Chaohua Cui; Yuqin Ding; Deping Qian; Qi Xu; Liangjie Li; Shusheng Li; Yongfang Li
Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2012-9-27
Journal Detail:
Title:  Physical chemistry chemical physics : PCCP     Volume:  -     ISSN:  1463-9084     ISO Abbreviation:  Phys Chem Chem Phys     Publication Date:  2012 Sep 
Date Detail:
Created Date:  2012-9-27     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  100888160     Medline TA:  Phys Chem Chem Phys     Country:  -    
Other Details:
Languages:  ENG     Pagination:  -     Citation Subset:  -    
State Key Laboratory of Alternate Electrical Power System with Renewable Energy Sources, The New and Renewable Energy of Beijing Key Laboratory, North China Electric Power University, Beijing 102206, China.
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