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Organic Photovoltaic Cells: Dielectric Effect on the Photovoltage Loss in Organic Photovoltaic Cells (Adv. Mater. 35/2014)
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.201470237
Subject(s) - materials science , dielectric , fullerene , organic solar cell , photovoltaic system , polymer , surface photovoltage , polymer solar cell , optoelectronics , photovoltaic effect , hybrid solar cell , spectroscopy , organic chemistry , composite material , chemistry , electrical engineering , engineering , physics , quantum mechanics
S.‐W. Tsang, F. So, and co‐workers use charge modulation electroabsorption spectroscopy (CMEAS) to determine the VOC loss in several polymer‐fullerene solar cells. Based on their data, they conclude on page 6125 that the V OC loss is due to the low dielectric constants of the polymers. The photovoltage loss is found to be close to zero if the dielectric constant of the polymer‐fullerene blend is close to a value of five.