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Dielectric Effect on the Photovoltage Loss in Organic Photovoltaic Cells
Author(s) -
Chen Song,
Tsang SaiWing,
Lai TzungHan,
Reynolds John R.,
So Franky
Publication year - 2014
Publication title -
advanced materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 10.707
H-Index - 527
eISSN - 1521-4095
pISSN - 0935-9648
DOI - 10.1002/adma.201401987
Subject(s) - photovoltaic system , dielectric , materials science , fullerene , polymer , organic solar cell , dielectric loss , engineering physics , nanotechnology , optoelectronics , electrical engineering , organic chemistry , physics , composite material , chemistry , engineering
The V OC loss in several polymer–fullerene solar cells is determined. Based on these data, a major source of photovoltage loss is attributed to the low dielectric constants of the polymers. Such loss is close to zero if the dielectric constant of the polymer–fullerene blend is close to 5.