Mixed C60/C70 based fullerene acceptors in polymer bulk-heterojunction solar cells
Journal article, 2012

Different mixtures of identically substituted C60 and C70 based fullerens have been used as acceptors in three polymer: fullerene systems that strongly express various performance limiting aspects of bulk heterojunction solar cells. Results are correlated with, and discussed in terms of e.g. morphology, charge separation, and charge transport. In these systems, there appears to be no relevant differences in either mobility or energy level positions between the identically substituted C60 and C70 based fullerenes tested. Examples of how fullerene mixtures influence the nano-morphology of the active layer are given. An upper limit to the open circuit voltage that can be obtained with fullerenes is also suggested.

charge-transfer states

dissociation

efficiencies

photovoltaic cells

Bulk-heterojunction solar cell

blends

morphology

Polymer

Fullerene

Author

L. M. Andersson

Linköping University

Y. T. Hsu

Linköping University

K. Vandewal

Linköping University

A. B. Sieval

Solenne BV

Mats Andersson

Chalmers, Chemical and Biological Engineering, Polymer Technology

Olle Inganäs

Linköping University

Organic Electronics: physics, materials, applications

1566-1199 (ISSN)

Vol. 13 12 2856-2864

Subject Categories

Chemical Sciences

DOI

10.1016/j.orgel.2012.08.028

More information

Latest update

2/28/2018