石墨烯/ZnO复合材料中的布尔斯坦效应  

Burstein-Moss Effect in Graphene /ZnO Composites

作　　者：范厚刚[1] 赵筱婷[1] 

机构地区：[1]吉林师范大学物理学院,吉林四平136000

出　　处：《吉林师范大学学报（自然科学版）》2014年第3期32-36,共5页Journal of Jilin Normal University:Natural Science Edition

基　　金：国家自然科学基金项目(11204104);吉林省科技发展计划项目(201105084)

摘　　要：通过简单、可重复的溶剂热蒸发法,以自制氧化石墨和氧化锌为原料,制备一系列不同比例的氧化锌和石墨烯的纳米复合材料,将氧化石墨还原成石墨烯的同时,完成石墨烯与氧化锌的复合.通过XRD、SEM、Raman、XPS、PL等表征手段对样品的形貌、结构及光学性能进行研究.在PL光谱中,随着石墨烯含量的增加,复合材料中呈现出荧光猝灭现象,并且本征发光峰位呈现规律性的蓝移,这可能是由布尔斯坦—摩斯(BursteinMoss)效应所引起的.Graphene and ZnO nanocomposite（ ZnO/ GR）were prepared by a simple and repeatable thermal evaporation process. Both the reduction of graphene oxide and the loading of ZnO were achieved at the same time. The morphologies,structure and optical properties were studied by X-ray diffraction（ XRD）,scanning electron microscopy（ SEM）,Raman,X-ray photoelectron spectroscopy（ XPS）and photoluminescence（ PL） measurements. In the PL spectra,with increasing the mass ratio of graphene to ZnO,a series of fluorescence quenching and a regularly blue shift of the ultraviolet（UV）peak were found,which might be attributed to the Burstein-Moss effect.

关 键 词：石墨烯 氧化锌 荧光猝灭 布尔斯坦-摩斯效应 

分 类 号：O472.3[理学—半导体物理]