Work

Optimum charge carrier mobility in organic solar cells

Year: 2007

Type: article

Abstract: In organic semiconductors the recombination mechanism is of the Langevin type, controlled by the mobility of the charge carriers. As a result, in organic solar cells the mobility simultaneously controls both the carrier extraction and the losses via carrier recombination. The authors demonstrate that the balance between carrier losses by extraction and by recombination leads to a distinct optimum in the carrier mobility with regard to the efficiency of organic solar cells. For low mobilities recombination losses limit the performance, whereas the efficient extraction at high mobilities leads to a reduction of the open-circuit voltage.

Source: Applied Physics Letters

DOI: 10.1063/1.2711534

Authors: M. M. Mandoc, L. J. A. Koster, P. W. M. Blom

Institutions: University of Groningen, Dutch Polymer Institute, Zernike Institute for Advanced Materials

Language: English

Topic: Organic Electronics and Photovoltaics

Subfield: Electrical and Electronic Engineering

Field: Engineering

Domain: Physical Sciences

SDG: Affordable and clean energy

Open Access status: bronze

OpenAlex ID: W2157518374