Release Time:2019-03-09  Hits:

Indexed by: Journal Article

Date of Publication: 2014-05-01

Journal: DYES AND PIGMENTS

Included Journals: Scopus、EI、SCIE

Volume: 104

Page Number: 8-14

ISSN: 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.