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Indexed by:期刊论文

Date of Publication:2014-05-01

Journal:DYES AND PIGMENTS

Included Journals:SCIE、EI、Scopus

Volume:104

Page Number:8-14

ISSN No.:0143-7208

Key Words:Dye-sensitized solar cells; Organic dye; n-Hexyl group; Fluorene; pi-Conjugated system; Photon-to-current conversion efficiency

Abstract:New metal-free organic sensitizers containing a fluorene unit as a pi-conjugated system, a diphenylamine as an electron donor, and a cyanoacrylic acid moiety as an electron acceptor were synthesized and used for dye-sensitized solar cells. The photophysical and electrochemical properties of these dyes were investigated, and their performances as sensitizers in solar cells were measured. One solar cell containing the n-hexyl group in the fluorene unit produced an eta of 5.15% (J(sc) = 9.69 mA cm(-2), V-oc = 0.77 V, and ff = 0.70) under 100 mW cm(-2) simulated AM 1.5 G solar irradiation (100 mW cm-2). (C) 2013 Elsevier Ltd. All rights reserved.