- Title
- Photoenhanced injection currents in organic solar cells
- Creator
- Frohne, Holger; McNeill, Christopher R.; Dastoor, Paul C.
- Relation
- Applied Physics Letters Vol. 85, Issue 6, p. 1042-1044
- Publisher Link
- http://dx.doi.org/10.1063/1.1779354
- Publisher
- American Institute of Physics
- Resource Type
- journal article
- Date
- 2004
- Description
- Bulk heterojunction organic solar cells with the general structure: indium tin oxide/polyethylenethioxythiophene (PEDOT)/bulk-heterojunction layer/Al with built-in fields between –0.1 and 1 V have been fabricated by electrochemically doping the PEDOT electrode. The active bulk-heterojunction layer consisted of a blend of MDMO-PPV (poly(2-methoxy-5-(3',7'-dimethyl)octyloxy-1,4-phenylenevinylene)) and PCBM ((6,6)-phenyl-C₆₁-butyric-acid methyl ester)). Measurements of the current–voltage curves with varying light intensities for these devices reveal the presence of light-dependent currents in addition to those from the photogenerated charge carriers. Equivalent circuit modeling indicates that these light-dependent currents most likely originate from photoenhanced injection at the electrodes.
- Subject
- indium compounds; aluminium; polymer films; solar cells; electrochemical electrodes; photoconductivity; organic semiconductors
- Identifier
- http://hdl.handle.net/1959.13/33870
- Identifier
- uon:3338
- Identifier
- ISSN:0003-6951
- Language
- eng
- Full Text
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