ZnO Nanowire-Based Antireflective Coatings with Double-Nanotextured Surfaces
- 주제(키워드) antireflection , AR coating , ZnO nanoivire , core-shell , core-branch , MgO
- 등재 SCIE, SCOPUS
- 발행기관 AMER CHEMICAL SOC
- 발행년도 2014
- 총서유형 Journal
- URI http://www.dcollection.net/handler/ewha/000000091377
- 본문언어 영어
- Published As http://dx.doi.org/10.1021/am4051734
초록/요약
High-aspect-ratio nanotextured surfaces with different morphologies (straight, core shell type, and core branch type nanowires) are prepared by a hydrothermal method of ZnO nanowires, followed by means of RF sputtering for core shell type nanowires and e-beam evaporation for branch-type nanowires. The structural analysis showed that the MgO has highly preferred orientation along the < 111 > and < 200 > direction, respectively, and the crystalline continuity between the ZnO and MgO layers were also showed. Compared with ZnO nanowires, the MgO/ZnO samples drastically suppress broad and omnidirection reflection, which ascribes to the refractive-index modulation along the lateral direction of nanowires growth as well as the vertical direction. It was also shown that morphology could have a substantial influence on the antireflection property. These results suggest that double-nanotextured surface is one of the promising structures for antireflective surfaces without fine control in nanowire morphology.
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