| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 5026307 | Optik - International Journal for Light and Electron Optics | 2016 | 21 Pages |
Abstract
High density and vertically aligned zinc oxide nanorod arrays (ZnO NRs) have been prepared directly on indium-doped tin oxide (ITO) substrates via two-steps preparation: sol-gel spin coating and hydrothermal process. The nanostructured ZnO was characterized for its morphology, crystalline structure and optical properties by using field emission scanning electron microscopy (FESEM), X-ray diffractometry, and ultraviolet-visible spectroscopy respectively. In addition, the photoeletrochemical (PEC) properties were investigated through photocurrent measurements. The ZnO NRs/ITO had wurtzite-structured (hexagonal) ZnO and preferred growth along (0001) direction. When the growth time was 4Â h, ZnO NRs/ITO showed impressive photoresponse. The PEC analysis verified that the ZnO NRs gave better photocurrent response and photoconversion efficiency with approximately 42 times greater than seed layer.
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Authors
Araa Mebdir Holi, Zulkarnain Zainal, Zainal Abidin Talib, Hong-Ngee Lim, Chi-Chin Yap, Sook-Keng Chang, Asmaa Kadim Ayal,