Hydrothermal growth of ZnO on annealed electrodeposited titanate film: Influence of zinc nitrate and methenamine |
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Authors: | Gil-Sung Kim |
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Institution: | School of Chemical Engineering, Chonbuk National University, Duckjin Dong 1 ga, Jeonju 561-756, Republic of Korea |
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Abstract: | Hydrothermal growth of hexagonal ZnO nanorods on the annealed titanate 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 E2 and E2H-E2L modes. Near band gap edge and green photoluminescence emission indicates the structural and oxygen vacancy. O 1s 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. |
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Keywords: | 45 20 dh 77 84 Dy 73 40 Sx 81 07 &minus b |
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