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Synthesis of Poly(3,4-ethylene dioxythiophene)/Ammonium Vanadate Nanofiber Composites for Counter Electrode of Dye-Sensitized Solar Cells

Title
Synthesis of Poly(3,4-ethylene dioxythiophene)/Ammonium Vanadate Nanofiber Composites for Counter Electrode of Dye-Sensitized Solar Cells
Author
임승순
Keywords
Conducting polymer; Ammonium vanadate nanofiber; Reflux method; counter electrode; dye-sensitized solar cells
Issue Date
2017-05
Publisher
PERGAMON-ELSEVIER SCIENCE LTD
Citation
ELECTROCHIMICA ACTA, v. 245, page. 607-614
Abstract
Poly(3,4-ethylene dioxythiophene)/ammonium vanadate nanofiber (E-AVNF) composites, with a diameter of 20-30 nm and length of 2-5 mm were synthesized by a simple refluxing method using ammonium persulfate ((NH4)(2)S2O8) and vanadium pentoxide (V2O5), accompanied intercalation of ammonium cation during reflux process. 3,4-ethylene dioxythiophene (EDOT) was co-intercalated into ammonium vanadate nanofiber layers and simultaneously its polymerization occurred. This intercalation mechanism of E-AVNF was confirmed by X-ray diffractometer (XRD), infrared spectroscopy (IR), thermogravimetric analysis (TGA) scanning electron microscopy (SEM) and transmission electron microscopy (TEM). The photovoltaic and catalytic performances were characterized by electrochemical impedance spectroscopy (EIS) and cyclic voltammetry (CV). As a result, new nanocomposite electrodes were fabricated without relying on autoclave, high temperature/pressure, surfactants, catalysts or harmful solvents. Moreover, well-defined E-AVNF composite shows a power conversion efficiency of 6.0% as a counter electrode (CE) in the dye-sensitized solar cells (DSCs). (C) 2017 Elsevier Ltd. All rights reserved.
URI
https://www.sciencedirect.com/science/article/pii/S0013468617312288?via%3Dihubhttps://repository.hanyang.ac.kr/handle/20.500.11754/113932
ISSN
0013-4686; 1873-3859
DOI
10.1016/j.electacta.2017.05.194
Appears in Collections:
COLLEGE OF ENGINEERING[S](공과대학) > ORGANIC AND NANO ENGINEERING(유기나노공학과) > Articles
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