Facile synthesis of hierarchical nanostructured polypyrrole and its application in the counter electrode of dye-sensitized solar cells

被引：11

作者：

Wang, Guiqiang ^{[1
]}

Dong, Weinan ^{[1
]}

Yan, Chao ^{[1
]}

Hou, Shuo ^{[1
]}

Zhang, Wei ^{[1
]}

机构：

[1] Bohai Univ, Sch New Energy, Jinzhou 121013, Peoples R China

来源：

MATERIALS LETTERS | 2018年 / 214卷

关键词：

Hierarchical nanostructure; Microstructure; Polymer; Counter electrode; Solar energy materials; HIGH-EFFICIENCY; FABRICATION; COMPOSITE;

D O I：

10.1016/j.matlet.2017.11.129

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Hierarchical nanostructured polypyrrole (HNPPy) of spherical polypyrrole (PPy) nanoparticles anchored on the surface of PPy nanofiber network is prepared by a facile process and incorporated into dye-sensitized solar cells (DSCs) as Pt-free counter electrode. This unique hierarchical nanostructure can provide the fast electron-transport pathway and abundant electrocatalytic active sites simultaneously. Electrochemical impedance spectroscopy analysis demonstrates that the electrocatalytic activity of HNPPy electrode for the I-3 reduction is higher than that of PPy nanoparticles (PPyNPs) electrode and comparable to that of Pt electrode. As a consequence, the DSC fabricated with HNPPy counter electrode achieves a high conversion efficiency of 6.78%, which is close to the efficiency using Pt counter electrode. (C) 2017 Elsevier B.V. All rights reserved.

引用

页码：158 / 161

页数：4

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