Facile construction of nanofibrous ZnO photoelectrode for dye-sensitized solar cell applications

被引：71

作者：

Zhang, Wei ^{[1
]}

Zhu, Rui ^{[1
]}

Liu, Xizhe ^{[1
]}

Liu, Bin ^{[1
]}

Ramakrishna, Seeram ^{[2
]}

机构：

[1] Natl Univ Singapore, Dept Chem & Biomol Engn, Singapore 117576, Singapore

[2] Natl Univ Singapore, Nanosci & Nanotechnol Initiat, Singapore 117576, Singapore

来源：

APPLIED PHYSICS LETTERS | 2009年 / 95卷 / 04期

关键词：

adhesion; calcination; electrochemical electrodes; electrospinning; II-VI semiconductors; nanofabrication; nanofibres; solar cells; tensile strength; zinc compounds; CONVERSION EFFICIENCY; ELECTRON INJECTION; FILMS; RECOMBINATION; TRANSPORT;

D O I：

10.1063/1.3193661

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

A facile method to prepare nanofibrous ZnO photoelectrodes with tunable thicknesses by electrospinning is reported. A "self-relaxation layer" is formed spontaneously between ZnO nanofibers and fluorine-doped SnO2 (FTO) substrate, which facilitates the release of interfacial tensile stress during calcination, resulting in good adhesion of ZnO film to FTO substrate. Dye-sensitized solar cells (DSSCs) based on the nanofibrous ZnO photoelectrodes are fabricated and an energy conversion efficiency of 3.02% is achieved under irradiation of AM 1.5 simulated sunlight with a power density of 100 mW cm(-2), which shows good promise of electrospun nanofibrous ZnO as the photoelectrode in DSSCs.

引用

页数：3

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