| Title |
Microstructural Evolution and Optical Properties of Electrodeposited ZnO Nanorods with Deposition Time |
| Authors |
정윤숙(Yoon Suk Jeong); 문진영(Jin Young Moon); 김형훈(Hyung Hoon Kim); 이호성(Ho Seong Lee) |
| DOI |
https://doi.org/10.3365/KJMM.2011.49.5.406 |
| ISSN |
1738-8228(ISSN), 2288-8241(eISSN) |
| Keywords |
semiconductors; crystal growth; microstructure; scanning electron microscopy; SEM |
| Abstract |
ZnO nanorods were prepared by the electrodeposition route on conductive Au/Si substrates. The effects of deposition time on the microstructural evolution and optical properties of ZnO nanorods were investigated. With increasing deposition time from 1 h to 20 h, the diameter and length of the ZnO nanorods increased gradually to about 328 nm and 6.55㎛, respectively. The ZnO nanorods were dense and vertically well-aligned. The photoluminescence (PL) peaks corresponding to the near band edge of ZnO were observed. With increasing deposition time, the intensity of PL peaks increased with nanorod growth up to 4 h and then decreased. This might be due to the degradation of crystal quality caused by merging of nanorods. |