Title of Paper:Molecular Design to Improve the Performance of Donor-p Acceptor Near-IR Organic Dye-Sensitized Solar Cells

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Date of Publication:2011-11-18

Journal:CHEMSUSCHEM

Included Journals:SCIE、PubMed、EI、Scopus

Volume:4

Issue:11

Page Number:1601-1605

ISSN No.:1864-5631

Key Words:aggregation; dyes; photophysics; sensitizers; solar cells

Abstract:Near-dye experience: Long, flexible carbon chains in the lateral anchoring groups of the donor part of a donor-π acceptor organic dye increase the power conversion efficiency dramatically. This performance enhancement can be ascribed to the prevention of the formation of molecular aggregates on the semiconductor nanoparticles, resulting in a lower recombination rate between transported electrons and I3-ions. A cell based on the new dye, HY113, gives a maximum IPCE value of 93% at 660nm. Copyright © 2011 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.