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Microscopic Analysis of Organic Solar Cells by Simultaneous Measurements of ESR and Device Performance

descriptionPublicationkeyboard_double_arrow_right Article , Journal 01 Jan 2014Publisher:Springer Science and Business Media LLCJournal:MRS Proceedings, volume 1,639 (issn: 0272-9172, eissn: 1946-4274,

Authors: Tatsuya Nagamori; Kazuhiro Marumoto; Kazuhiro Marumoto; Masaki Yabusaki;

doi: 10.1557/opl.2014.24

Microscopic Analysis of Organic Solar Cells by Simultaneous Measurements of ESR and Device Performance

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Abstract

ABSTRACTLight-induced electron spin resonance (LESR) study of polymer solar cells has been performed to investigate accumulated hole carriers in these devices under device operation. We analyzed clear correlation between the number of accumulated holes in regioregular poly(3-hexylthiophene) (P3HT) evaluated by LESR and the deterioration of device performance (Voc, Jsc) observed using the same device under simulated solar irradiation. The effects of hole accumulation with deep trapping levels formed in P3HT at the organic interfaces on the performance are examined by considering interfacial electric dipole layers and charge-carrier scattering by accumulated holes.

Related Organizations

National Presto Industries
United States
National Presto Industries
United States
University of Tsukuba
Japan

16 Research products, page 1 of 2

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