Advanced search
Start date
Betweenand
Related content
(Reference retrieved automatically from Web of Science through information on FAPESP grant and its corresponding number as mentioned in the publication by the authors.)

Efficient Dye-Sensitized Solar Cells Based on the Combination of ZnO Nanorods and Microflowers

Full text
Author(s):
Goncalves, Agnaldo de Souza [1] ; Davolos, Marian R. [2] ; Nogueira, Ana Flavia [1]
Total Authors: 3
Affiliation:
[1] Univ Estadual Campinas UNICAMP, Inst Quim, Dept Quim Inorgan, BR-13083970 Campinas, SP - Brazil
[2] Univ Estadual Paulista UNESP, Inst Quim, Dept Quim Geral & Inorgan, BR-14801970 Araraquara, SP - Brazil
Total Affiliations: 2
Document type: Journal article
Source: Journal of Nanoscience and Nanotechnology; v. 10, n. 10, p. 6432-6438, OCT 2010.
Web of Science Citations: 6
Abstract

Well-aligned ZnO nanorod films were grown onto transparent conducting substrates by using an aqueous solution route. The presence of some reflections in the X-ray diffraction pattern of the ZnO films indicates the vertical alignment of the nanorods along the c axis of the wurtzite hexagonal structure. Well-aligned ZnO nanorods were observed by scanning electron microscopy. The presence of top ZnO microflower layers over the ZnO nanorod film was observed for all growth times studied. The ZnO nanorods with ZnO microflower top layers were applied as photoelectrodes in dye-sensitized solar cells. Higher photocurrent densities and photovoltages were observed with longer nanorod growth times. The high performance of the dye-sensitized solar cells might be associated to the combination of ZnO nanorods and microflowers in the same photoelectrode. (AU)