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Growth of ZnO nanorods on various substrates by electrodeposition

Research paper by Hyunghoon Kim, Jin Young Moon, Ho Seong Lee

Indexed on: 01 Sep '09Published on: 01 Sep '09Published in: Electronic Materials Letters



Abstract

The structural and optical properties of electrochemically grown ZnO nanorods on several substrates were investigated. The ZnO nanorods were dense and vertically well-aligned with the decrease in resistivity of substrates. Scanning and transmission electron microscopy results showed that hexagon-shaped ZnO nanorods with a diameter in the range of 100 nm to 200 nm and a length of about 600 nm were formed. Photoluminescence (PL) measurement showed a strong near-bandedge UV emission at 382 nm and a broader band emission centered around 600 nm, which was related to deep level defects.