Straightforward determination of the effective mobility-lifetime product of small molecule organic solar cells

Author

Gerling, L.G. ; Mahato, S. ; Galindo, S. ; Voz, C. ; Puigdollers, J. ; Alcubilla, R. ; Asensi, J.M.

Author_Institution

Dept. de Ing. Electron., Univ. Politec. de Catalunya, Barcelona, Spain

fYear

2015

fDate

11-13 Feb. 2015

Firstpage

1

Lastpage

4

Abstract

The effective mobility-lifetime product, a figure of merit for charge carrier transport in a photovoltaic device, was determined for small-molecule bulk heterojunction organic solar cells by means of a simplified methodology comprising variable light intensity measurements. The recombination losses within the intrinsic active layer, accounted by a recombination current that reduces the generated photocurrent, were correlated to lower mobility-lifetime values that reduce device performance.

Keywords

organic semiconductors; photoconductivity; solar cells; charge carrier transport; effective mobility-lifetime product; photocurrent; photovoltaic device; recombination current; recombination losses; small-molecule bulk heterojunction organic solar cells; straightforward determination; variable light intensity measurements; Charge carriers; Current measurement; Heterojunctions; Photovoltaic cells; Radiative recombination; Semiconductor device measurement; bulk heterojunction; lifetime; mobility; organic solar cell; recombination; variable light intensity;

fLanguage

English

Publisher

ieee

Conference_Titel

Electron Devices (CDE), 2015 10th Spanish Conference on

Conference_Location

Madrid

Type

conf

DOI

10.1109/CDE.2015.7087503

Filename

7087503