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Journal Article Thin Metal Electrodes for Semitransparent Organic Photovoltaics
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Authors
Kyu-Sung Lee, Inho Kim, Chang Bong Yeon, Jung Wook Lim, Sun Jin Yun, Ghassan E. Jabbour
Issue Date
2013-08
Citation
ETRI Journal, v.35, no.4, pp.587-593
ISSN
1225-6463
Publisher
한국전자통신연구원 (ETRI)
Language
English
Type
Journal Article
DOI
https://dx.doi.org/10.4218/etrij.13.1912.0025
Project Code
11MB7300, Development of a-Si/SiGe tandem structure thin film solar cells of conversion efficiency 13% on flexible metal substrate, Sun Jin Yun
Abstract
We demonstrate semitransparent organic photovoltaics (OPVs) based on thin metal electrodes and polymer photoactive layers consisting of poly(3-hexylthiophene) and [6,6]-phenyl C61 butyric acid methyl ester. The power conversion efficiency of a semitransparent OPV device comprising a 15-nm silver (Ag) rear electrode is 1.98% under AM 1.5-G illumination through the indium-tin-oxide side of the front anode at 100 mW/cm2 with 15.6% average transmittance of the entire cell in the visible wavelength range. As its thickness increases, a thin Ag electrode mainly influences the enhancement of the short circuit current density and fill factor. Its relatively low absorption intensity makes a Ag thin film a viable option for semitransparent electrodes compatible with organic layers. © 2013 ETRI.
KSP Keywords
3-hexylthiophene(SEM poly), Absorption intensity, Ag electrode, Ag thin film, Butyric acid, Conversion efficiency(C.E.), Methyl ester, Organic layers, Organic photovoltaics(OPVs), Short circuit current density, fill factor