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Quinacridone‐Based Electron Transport Layers for Enhanced Performance in Bulk‐Heterojunction Solar Cells
Author(s) -
Pho Toan V.,
Kim Heejoo,
Seo Jung Hwa,
Heeger Alan J.,
Wudl Fred
Publication year - 2011
Publication title -
advanced functional materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 6.069
H-Index - 322
eISSN - 1616-3028
pISSN - 1616-301X
DOI - 10.1002/adfm.201101257
Subject(s) - materials science , organic solar cell , photovoltaics , heterojunction , optoelectronics , layer (electronics) , energy conversion efficiency , photovoltaic system , electron transport chain , fabrication , polymer solar cell , nanotechnology , composite material , chemistry , polymer , ecology , biochemistry , biology , medicine , alternative medicine , pathology
A water/alcohol‐soluble small molecule based on the commercially available pigment quinacridone is employed as an electron transport layer in organic photovoltaics. The quinacridone derivative is utilized in solution‐processed bulk‐heterojunction solar cells to improve primarily the fill factor of the devices, contributing to an upwards of 19% enhancement in the power conversion efficiency relative to the control devices with no electron transport layer. The facile synthesis of the quinacridone derivative coupled with the ease of device fabrication via solution processing provide a simple, yet effective means of improving the performance of existing organic photovoltaic cells.