標題: | Growth of ZnO Nanorods and Their Applications for Liquid Crystal Devices |
作者: | Chen, Mu-Zhe Yang, Sheng-Hsiung Jeng, Shie-Chang 光電系統研究所 照明與能源光電研究所 影像與生醫光電研究所 Institute of Photonic System Institute of Lighting and Energy Photonics Institute of Imaging and Biomedical Photonics |
關鍵字: | ZnO nanorods;liquid crystal alignment;liquid crystal devices;pretilt angle;surface wettability |
公開日期: | 1-四月-2018 |
摘要: | Different morphologies of ZnO nanorods were synthesized by using the two-step hydrothermal method, and they were applied to liquid crystal (LC) alignment films. The morphology of the ZnO nanorods, including length, diameter, and density, were controlled by the growth time, which ranged from 16 to 26 min. The morphology and the chemical features both contributed to the surface wettability of the ZnO nanorods. The LC pretilt angle on the ZnO nanorods was successfully controlled from homeotropic (similar to 89.0 degrees) to homogeneous (similar to 1.7 degrees) alignments, as the contact angle of water on ZnO nanorods was changed from 93 to 28 with the growth time. The analysis of Xray diffraction and X-ray photoelectron spectroscopy showed that the crystallite size of ZnO nanorods increased with the growth time, while the oxygen vacancy decreased. The ZnO nanorods grown on the ITO glass substrate also improve the transmission of LCDs due to the antireflection effect. |
URI: | http://dx.doi.org/10.1021/acsanm.8b00202 http://hdl.handle.net/11536/154399 |
ISSN: | 2574-0970 |
DOI: | 10.1021/acsanm.8b00202 |
期刊: | ACS APPLIED NANO MATERIALS |
Volume: | 1 |
Issue: | 4 |
起始頁: | 1879 |
結束頁: | 1885 |
顯示於類別: | 期刊論文 |