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High efficiency organic photovoltaic cells based on a vapor deposited squaraine donor
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/content/aip/journal/apl/94/23/10.1063/1.3152011
2009-06-09
2014-12-18

Abstract

2,4-bis[4-(-diisobutylamino)-2,6-dihydroxyphenyl] squaraine (SQ) is used as a donor material in vapor deposited organic heterojunctionphotovoltaic cells.Devices with the structure indium tin oxide/SQ /bathocuproine , where , 110, 150, and were compared. Devices with exhibited a power conversion efficiency of 3.1% under , AM1.5G simulated solar irradiation, giving an open circuit voltage of , a short circuit current of , and a fill factor of . Thicker SQ films lead to lower short circuit currents and fill factors, giving conversion efficiencies in the range of 2.6% to 3.2%. The demonstration of sublimable SQ as a donor material opens up a family of compounds for use in small molecule based heterojunctionphotovoltaics.

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Scitation: High efficiency organic photovoltaic cells based on a vapor deposited squaraine donor
http://aip.metastore.ingenta.com/content/aip/journal/apl/94/23/10.1063/1.3152011
10.1063/1.3152011
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