Electrochemical Synthesis of Novel Zn-Doped TiO(2) Nanotube/ZnO Nanoflake Heterostructure with Enhanced DSSC Efficiency

ABSTRACT: The paper reports the fabrication of Zn-doped TiO(2) nanotubes (Zn-TONT)/ZnO nanoflakes heterostructure for the first time, which shows improved performance as a photoanode in dye-sensitized solar cell (DSSC). The layered structure of this novel nanoporous structure has been analyzed unamb...

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Detalles Bibliográficos
Autores principales: John K, Aijo, Naduvath, Johns, Mallick, Sudhanshu, Pledger, Jacob W., Remillard, S. K., DeYoung, P. A., Thankamoniamma, Manju, Shripathi, T., Philip, Rachel Reena
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Springer Berlin Heidelberg 2016
Materias:
Article
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6223692/
https://www.ncbi.nlm.nih.gov/pubmed/30460296
http://dx.doi.org/10.1007/s40820-016-0099-z
Descripción
Sumario:ABSTRACT: The paper reports the fabrication of Zn-doped TiO(2) nanotubes (Zn-TONT)/ZnO nanoflakes heterostructure for the first time, which shows improved performance as a photoanode in dye-sensitized solar cell (DSSC). The layered structure of this novel nanoporous structure has been analyzed unambiguously by Rutherford backscattering spectroscopy, scanning electron microscopy, and X-ray diffractometer. The cell using the heterostructure as photoanode manifests an enhancement of about an order in the magnitude of the short circuit current and a seven-fold increase in efficiency, over pure TiO(2) photoanodes. Characterizations further reveal that the Zn-TONT is preferentially oriented in [001] direction and there is a Ti metal-depleted interface layer which leads to better band alignment in DSSC. GRAPHICAL ABSTRACT: [Image: see text]

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