Issue 47, 2012
From the journal:

Chemical Communications

Direct measurements of exciton diffusion length limitations on organic solar cell performance†

Derek R. Kozub,a   Kiarash Vakhshouri,a   Sameer Vajjala Kesava,a   Cheng Wang,b   Alexander Hexemerb  and  Enrique D. Gomez*ac  

* Corresponding authors

a Department of Chemical Engineering, The Pennsylvania State University, University Park, USA

b Advanced Light Source, Lawrence Berkeley National Laboratory, Berkeley, USA

c Materials Research Institute, The Pennsylvania State University, University Park, USA
E-mail: edg12@psu.edu

Abstract

Through a combination of X-ray scattering and energy-filtered electron microscopy, we have quantitatively examined the relationship between the mesostructure of the photoactive layer and device performance in PBTTT/PC71BM solar cells. We can predict device performance from X-ray structural data through a simple morphological model which includes the exciton diffusion length.

Graphical abstract: Direct measurements of exciton diffusion length limitations on organic solar cell performance

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Article information

DOI
https://doi.org/10.1039/C2CC31925J
Article type
Communication
Submitted
16 Mar 2012
Accepted
16 Apr 2012
First published
17 Apr 2012

Chem. Commun., 2012,48, 5859-5861

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Direct measurements of exciton diffusion length limitations on organic solar cell performance

D. R. Kozub, K. Vakhshouri, S. V. Kesava, C. Wang, A. Hexemer and E. D. Gomez, Chem. Commun., 2012, 48, 5859 DOI: 10.1039/C2CC31925J

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