Graphene-loaded porous ZnCo2O4 nanosheets composite as counter electrode for dye-sensitized solar cells

被引：14

作者：

Wang, Wenqi ^{[1
,2
]}

Du, Feng ^{[1
]}

Yang, Qun ^{[2
]}

Zhang, Kang ^{[2
]}

Yao, Jixin ^{[2
]}

Li, Guang ^{[2
,3
]}

Zhou, Haidong ^{[4
,5
]}

机构：

[1] Suzhou Univ, Anhui Key Lab Spin Electron & Nanomat, Suzhou 234000, Peoples R China

[2] Anhui Univ, Sch Phys & Mat Sci, Hefei 230601, Anhui, Peoples R China

[3] Anhui Key Lab Informat Mat & Devices, Hefei 230601, Anhui, Peoples R China

[4] Univ Tennessee, Dept Phys & Astron, Knoxville, TN 37996 USA

[5] Florida State Univ, Natl High Magnet Field Lab, Tallahassee, FL 32310 USA

来源：

MATERIALS LETTERS | 2017年 / 207卷

基金：

中国国家自然科学基金;

关键词：

Composite materials; Semiconductors; Solar energy materials; OXYGEN REDUCTION; PERFORMANCE; NANOCOMPOSITES; NANOFIBERS/GRAPHENE; NANOSTRUCTURES; OXIDE;

D O I：

10.1016/j.matlet.2017.07.005

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Graphene-loaded porous ZnCo2O4 nanosheets composite (ZnCo2O4/RGO) had been synthesized by annealing the precursors, which were obtained after a simple hydrothermal method. Scanning electron microscope (SEM) and transmission electron microscopy (TEM) images revealed the microstructure of as-synthesized products. Raman spectroscopy confirmed the existence of RGO in the composite. ZnCo2O4/RGO composite exhibited great electrocatalytic property for reduction of I-3 , which showed enormous enhancements than that of pure ZnCo2O4 and RGO. It can be ascribed to the synergetic effect between porous ZnCo2O4 nanosheets and RGO films. As counter electrode (CE) for dye-sensitized solar cells (DSSCs), ZnCo2O4/RGO composite gained power conversion efficiency (PCE) of 6.73%, which was up to 88% of that for Pt CE (7.69%). (C) 2017 Elsevier B.V. All rights reserved.

引用

页码：117 / 120

页数：4

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