Charge transfer dynamics from organometal halide perovskite to polymeric hole transport materials in hybrid solar cells

Brauer, Jan C.; Lee, Yong Hui; Nazeeruddin, Mohammad Khaja; Banerji, Natalie

doi:10.1021/acs.jpclett.5b01698

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Charge transfer dynamics from organometal halide perovskite to polymeric hole transport materials in hybrid solar cells

Brauer, Jan C. Departement of Chemsitry, University of Fribourg, Switzerland
Lee, Yong Hui Group for Molecular Engineering of Functional Materials, Institute of Chemical Sciences and Engineering, École Polytechnique Fédérale de Lausanne, Switzerland
Nazeeruddin, Mohammad Khaja Group for Molecular Engineering of Functional Materials, Institute of Chemical Sciences and Engineering, École Polytechnique Fédérale de Lausanne, Switzerland
Banerji, Natalie Departement of Chemsitry, University of Fribourg, Switzerland

17.09.2015

Published in:

The Journal of Physical Chemistry Letters. - 2015, vol. 6, no. 18, p. 3675–3681

English Organometal halide perovskites have emerged as promising next-generation solar cell technologies presenting outstanding efficiencies. However, many questions concerning their working principles remain to be answered. Here, we present a detailed study of hole transfer dynamics into polymeric hole transporting materials (HTMs), poly(triarylamine) (PTAA), poly(3-hexylthiophee-2,5-diyl (P3HT), and poly[2,6-(4,4-bis(2-ethylhexyl)-4H-cyclopenta[2,1-b;3,4-b′]dithiophene)-alt-4,7-(2,1,3-benzothiadiazole) (PCPDTBT). The hole transfer dynamics are shown to occur on a time scale of thousands of picoseconds, being orders of magnitude slower compared to hole transfer involving commonly used Spiro-OMeTAD as HTM.

Faculty

Faculté des sciences et de médecine

Department

Département de Chimie

Language