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.
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页数：3
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