发光学报2018，Vol.39Issue(4)：562-567,6.DOI:10.3788/fgxb20183904.0562
液晶-氧化锌纳米复合材料的可调发光
Tunable Emission Colours from Liquid Crystal/ZnO Nanocomposites
摘要
Abstract
MB2BA/ZnO nanocomposites with different mass fraction of liquid crystal N-(4-methoxy-benzylidene)-4-ethoxybenzenamine(MB2BA) were successfully prepared by ultrasonic dispersing technology. The prepared MB2BA/ZnO nanocomposites were characterized by X-ray diffraction (XRD), transmission electron microscopy(TEM) and photoluminescence(PL) spectroscopy, re-spectively. The experimental results show that the UV emission of ZnO nanocrystals and PL of the MB2BA is about to form a blue emission band with its peak located at about 418 nm when the con-centration of MB2BA in ZnO is up to 80%. By increasing the concentration of MB2BA in ZnO nano-crystals,deep-level luminescence obviously weakened with reducing the surface defects of the ZnO nanocrystals, and the originally yellow-green photoluminescence of the ZnO nanocrystals can be tuned to blue. Our results demonstrate that the blue colored photoluminescence can be achieved by mixing appropriate amount of MB2BA with ZnO nanocrystals.关键词
氧化锌/超声波分散技术/光致发光Key words
ZnO/ultrasonic dispersing technology/photoluminescence分类
数理科学引用本文复制引用
陈兰莉,刘斌,石明吉..液晶-氧化锌纳米复合材料的可调发光[J].发光学报,2018,39(4):562-567,6.基金项目
河南省基础与前沿技术研究计划(122300410205) （122300410205）
河南省科技攻关计划(182102310794,152102210217) （182102310794,152102210217）
河南省教育厅科学技术研究重点项目(14B430029)资助Supported by Natural Science Foundation of Henan Province(122300410205) （14B430029）
Science and Technology Research Project of Henan Province(182102310794,152102210217) （182102310794,152102210217）
Science and Technology Research Project of The Education Department of Henan Province(14B430029) （14B430029）
