Fabrication of large Pt nanoparticles-decorated rGO counter electrode for highly efficient DSSCs

被引：18

作者：

Ahn, Hyo-Jin ^{[1
]}

Lee, Jung-Soo ^{[2
]}

Kim, Hyo-Sub ^{[1
]}

Hwang, In-Tae ^{[1
]}

Hong, Ji-Hyun ^{[1
]}

Shin, Junhwa ^{[1
]}

Jung, Chan-Hee ^{[1
]}

机构：

[1] Korea Atom Energy Res Inst, Adv Radiat Technol Inst, 29 Geumgu Gil, Jeongeup Si, jeollabuk Do, South Korea

[2] Chosun Univ, Dept Biochem & Polymer Engn, 309 Pilmun Daero, Gwangju 501759, South Korea

来源：

JOURNAL OF INDUSTRIAL AND ENGINEERING CHEMISTRY | 2018年 / 65卷

基金：

新加坡国家研究基金会;

关键词：

Reduced graphene oxide; Pt nanoparticle; Composites; Radiolytic reduction; Dye sensitized solar cell; REDUCED GRAPHENE OXIDE; SENSITIZED SOLAR-CELLS; LOW-COST; FACILE SYNTHESIS; PERFORMANCE; REDUCTION; PLATINUM; NANOCOMPOSITES; IRRADIATION; RESTACKING;

D O I：

10.1016/j.jiec.2018.04.043

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

This study describes the radiolytic fabrication of large Pt nanoparticles (NPs)-decorated reduced graphene oxide (L-Pt/rGO) and its use as a counter electrode (CE) in dye-sensitized solar cells (DSSCs). A homogenous aqueous solution of GO in 10 wt% isopropyl alcohol (IPA) aqueous solution containing Pt precursor was irradiated with gamma-ray at room temperature to prepare the L-Pt/rGO. The analytic results from TEM, EDX, XPS, and Raman revealed that the rGO decorated with 100 nm Pt NPs was successfully formed by the gamma-ray irradiation-induced reduction of both the GO and Pt precursor in aqueous IPA solution. Based on the results of the DSSCs performance test, the energy conversion efficiency of the DSSCs with the L-Pt/rGO-based CE outperformed that with the rGO-based one due to the lower sheet resistance, and even was comparable to that of the Pt-based CE. This L-Pt/rGO fabricated by a simple, room temperature and scalable radiolytic method can be used as a promising CE material for low-cost and high-performance DSSCs. (C) 2018 The Korean Society of Industrial and Engineering Chemistry. Published by Elsevier B.V. All rights reserved.

引用

页码：318 / 324

页数：7

共 43 条

[1] p-Doped three-dimensional graphene nano-networks superior to platinum as a counter electrode for dye-sensitized solar cells [J].