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Please use this identifier to cite or link to this item: http://hdl.handle.net/1942/11147

Title: Charge Transfer State Versus Hot Exciton Dissociation in Polymer-Fullerene Blended Solar Cells
Authors: Lee, Jiye
VANDEWAL, Koen
Yost, Shane R.
Bahlke, Matthias E.
GORIS, Ludwig
Baldo, Marc A.
MANCA, Jean
Van Voorhis, Troy
Issue Date: 2010
Publisher: AMER CHEMICAL SOC
Citation: JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 132(34). p. 11878-11880
Abstract: We examine the significance of hot exciton dissociation in two archetypical polymer fullerene blend solar cells. Rather than evolving through a bound charge transfer state, hot processes are proposed to convert excitons directly into free charges. But we find that the internal quantum yields of carrier photogeneration are similar for both excitons and direct excitation of charge transfer states. The internal quantum yield, together with the temperature dependence of the current voltage characteristics, is consistent with negligible impact from hot exciton dissociation.
Notes: [Lee, Jiye; Bahlke, Matthias E.; Baldo, Marc A.] MIT, Dept Elect Engn & Comp Sci, Cambridge, MA 02139 USA. [Vandewal, Koen; Goris, Ludwig; Manca, Jean V.] Hasselt Univ, IMEC IMOMEC, Vzw, B-3590 Diepenbeek, Belgium. [Vandewal, Koen; Goris, Ludwig; Manca, Jean V.] Hasselt Univ, Inst Mat Res, B-3590 Diepenbeek, Belgium. [Yost, Shane R.; Van Voorhis, Troy] MIT, Dept Chem, Cambridge, MA 02139 USA. baldo@mit.edu; jean.manca@uhasselt.be; tvan@mit.edu
URI: http://hdl.handle.net/1942/11147
DOI: 10.1021/ja1045742
ISI #: 000281296700021
ISSN: 0002-7863
Category: A1
Type: Journal Contribution
Validation: ecoom, 2011
Appears in Collections: Research publications

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