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http://hdl.handle.net/1942/11482
Title: | Electroluminescence from Charge Transfer States in Polymer Solar Cells | Authors: | Tvingstedt, Kristofer VANDEWAL, Koen Gadisa, Abay Zhang, Fengling MANCA, Jean Inganas, Olle |
Issue Date: | 2009 | Publisher: | AMER CHEMICAL SOC | Source: | JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 131 (33). p. 11819-11824 | Abstract: | In this article we report the weak but omnipresent electroluminescence (EL) from several types of organic polymer:fullerene bulk heterojunction solar cells biased in the forward direction. The light emitted from blends of Some commonly used polymers and the fullerene molecule is significantly different from that of any of the pure materials comprising the blend. The lower energy of the blend EL is found to correlate with both the voltage onset of emission and the open-circuit voltage of the photovoltaic cell under solar illumination. WE., accordingly interpret the emission to originate from interfacial charge transfer state recombination and emphasize EL as a very valuable tool to characterize the charge transfer state present in donor/acceptor organic photovoltaic (OPV) cells. | Notes: | [Tvingstedt, Kristofer; Zhang, Fengling; Inganas, Olle] Linkoping Univ, Dept Phys Chem & Biol, Ctr Organ Elect, S-58183 Linkoping, Sweden. [Vandewal, Koen; Gadisa, Abay; Manca, Jean] Hasselt Univ, Inst Mat Res, IMEC, IMOMEC,Vzw, B-3590 Diepenbeek, Belgium. kritv@ifm.liu.se | Document URI: | http://hdl.handle.net/1942/11482 | ISSN: | 0002-7863 | e-ISSN: | 1520-5126 | DOI: | 10.1021/ja903100p | ISI #: | 000269379400042 | Category: | A1 | Type: | Journal Contribution | Validations: | ecoom 2010 |
Appears in Collections: | Research publications |
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