期刊
APPLIED SURFACE SCIENCE
卷 253, 期 17, 页码 7197-7202出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/j.apsusc.2007.02.201
关键词
DSSC; titanate seed; ZnO; hexagonal nanorods
类别
资金
- National Research Foundation of Korea [R01-2004-000-10792-0] Funding Source: Korea Institute of Science & Technology Information (KISTI), National Science & Technology Information Service (NTIS)
Hydrothermal growth of hexagonal ZnO nanorods on the annealed fitanate nanotube films is reported as a function of molar ratio of Zn(NO3)(2) and methenamine (1:1-1:4). The molar ratio of 1:4 results in a dense and thinner rod in comparison with other molar ratios. Corn-like structures of the rods are believed to be due to the higher amine concentration. Raman peaks at 437 and 331 cm(-1) are assigned to E and E-2H-E-2L modes. Near band gap edge and green photoluminescence emission indicates the structural and oxygen vacancy. 0 Is peak is found built-up of sub-peaks at 530.62, 531.8 and 532.84 eV corresponding to O2- on normal wurtzite structure and OH and oxygen vacancies of ZnO, respectively. (c) 2007 Elsevier B. V. All rights reserved.
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