Photoinduced asymmetric charge trapping in a symmetric tetraazapyrene-fused bis(tetrathiafulvalene) conjugate

Author:

Zhou Ping1,Nazari Haghighi Pashaki Maryam2,Frey Hans-Martin2,Hauser Andreas3,Decurtins Silvio1,Cannizzo Andrea2ORCID,Feurer Thomas2,Häner Robert1ORCID,Aschauer Ulrich14ORCID,Liu Shi-Xia1ORCID

Affiliation:

1. Department of Chemistry, Biochemistry and Pharmaceutical Sciences, University of Bern, Freiestrasse 3, CH-3012 Bern, Switzerland

2. Institute of Applied Physics, University of Bern, Sidlerstrasse 5, CH-3012 Bern, Switzerland

3. Department of Physical Chemistry, University of Geneva, 30 Quai Ernest Ansermet, CH-1211 Geneva, Switzerland

4. Department of Chemistry and Physics of Materials, University of Salzburg, Jakob-Haringer-Straße 2A, 5020 Salzburg, Austria

Abstract

Asymmetric charge trapping in a symmetric TTF–TAP–TTF leads to a significant stabilization of the charge-separated state of a few ns, which contrasts strongly with the asymmetric TAP–TTF where rapid charge recombination occurs within 2 ps.

Funder

Schweizerischer Nationalfonds zur Förderung der Wissenschaftlichen Forschung

Publisher

Royal Society of Chemistry (RSC)

Subject

General Chemistry

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