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Inverse relation between photocurrent and absorption layer thickness in polymer solar cells
Author(s) -
Hoppe Harald,
Shokhovets Sviatoslav,
Gobsch Gerhard
Publication year - 2007
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.200600011
Subject(s) - photocurrent , materials science , active layer , polymer solar cell , optoelectronics , absorption (acoustics) , heterojunction , layer (electronics) , organic solar cell , photovoltaic system , polymer , inverse , photoconductivity , energy conversion efficiency , short circuit , nanotechnology , composite material , voltage , physics , electrical engineering , geometry , mathematics , engineering , thin film transistor , quantum mechanics
Abstract Organic solar cells based on polymer–fullerene bulk heterojunctions were optimised with respect to the short circuit photocurrent by means of optical modelling. Due to interference effects present in the thin film multilayer device, an inverse relation between active layer thickness and photocurrent was predicted and experimentally verified. Optimised photovoltaic devices yield power conversion efficiencies of 4%. (© 2007 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)

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