Thin Metal Electrodes for Semitransparent Organic Photovoltaics
- Thin Metal Electrodes for Semitransparent Organic Photovoltaics
- 이규성; 김인호; 연창봉; 임정욱; 윤선진; Ghassan E. Jabbour
- Thin metal electrodes; semitransparent; organic photovoltaics
- Issue Date
- ETRI journal
- VOL 35, NO 4, 587-593
- 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/㎠ 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.
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