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

Wei Zhang | Zendy; Rui Zhu | Zendy; Xizhe Liu | Zendy; Bin Liu | Zendy; Seeram Ramakrishna | Zendy

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

Author(s) -

Wei Zhang,

Rui Zhu,

Xizhe Liu,

Bin Liu,

Seeram Ramakrishna

Publication year - 2009

Publication title -

applied physics letters

Language(s) - English

Resource type - Journals

eISSN - 1077-3118

pISSN - 0003-6951

DOI - 10.1063/1.3193661

Subject(s) - electrospinning , materials science , dye sensitized solar cell , calcination , nanofiber , substrate (aquarium) , energy conversion efficiency , nanotechnology , chemical engineering , adhesion , layer (electronics) , optoelectronics , composite material , catalysis , chemistry , polymer , electrode , electrolyte , biochemistry , oceanography , geology , engineering

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 SnO 2 (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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