期刊
JOURNAL OF MATERIALS CHEMISTRY
卷 17, 期 48, 页码 5084-5089出版社
ROYAL SOC CHEMISTRY
DOI: 10.1039/b714323k
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Microtube-network structures were coupled into nanocrystalline TiO2 porous photoelectrodes, resulting in a 30% enhancement of the total photo-to-electrical conversion efficiency comparing to that of conventional electrodes of the same thickness. The textural material was formed by thermal removal of electrospun polymer nanofibers, which were encapsulated in a TiO2 nanoparticle matrix. Due to the microtube-network structure in the photoelectrodes, the optical path length within the porous film was considerably extended and the internal resistance of the devices was decreased, resulting in better light-collection efficiency, reduced charge recombination and fast ionic diffusion, and thus higher photoelectrical performance.
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