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Bulk heterojunction organic photovoltaic cell fabricated by the electrospray deposition method using mixed organic solvent
Author(s) -
Fukuda Takeshi,
Takagi Kenji,
Asano Takashi,
Honda Zentaro,
Kamata Norihiko,
Ueno Keiji,
Shirai Hajime,
Ju Jungmyoung,
Yamagata Yutaka,
Tajima Yusuke
Publication year - 2011
Publication title -
physica status solidi (rrl) – rapid research letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.786
H-Index - 68
eISSN - 1862-6270
pISSN - 1862-6254
DOI - 10.1002/pssr.201105232
Subject(s) - acetone , deposition (geology) , dichlorobenzene , materials science , electrospray , heterojunction , solvent , chemical engineering , organic solvent , surface roughness , photovoltaic system , energy conversion efficiency , organic solar cell , analytical chemistry (journal) , chemistry , mass spectrometry , optoelectronics , organic chemistry , chromatography , polymer , composite material , paleontology , ecology , sediment , engineering , biology
Abstract A high‐efficiency bulk heterojunction organic photovoltaic cell (OPV) was achieved by the electrospray deposition method. The surface roughness of the P3HT:PCBM thin film can be reduced using the mixed solvent consisting of o‐dichlorobenzene (o‐DCB) and acetone. The effect of acetone concentration is related to its dielectric constant. Under an optimized concentration of acetone in o‐DCB (20 vol%), the P3HT/PCBM active layer with a smooth surface can be formed, and the power conversion efficiency of the OPV was 1.9%.(© 2011 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)