中国激光, 2017, 44 (7): 0703011, 网络出版: 2017-07-05
二维材料/PTCDA异质结荧光性能 下载: 1174次
Fluorescence Property of Two-Dimensional Materials/PTCDA Heterojunctions
材料 过渡金属硫族化合物 石墨烯 有机半导体 异质结 荧光性能 materials transition-metal dichalcogenide graphene organic semiconductors heterojunction fluorescence property
摘要
将3,4,9,10-苝四酸二酐(PTCDA)分别与单层二硫化钼(MoS2)和石墨烯结合构成有机-无机异质结, 并研究其荧光性能。在MoS2/PTCDA体系中, PTCDA的荧光强度显著增强, 这是因为MoS2表面促进了PTCDA外延生长; 而在石墨烯/PTCDA体系中, PTCDA的荧光强度明显减弱, 这主要是因为该异质结内光生电子发生了跃迁转移。
Abstract
Organic-inorganic heterojunctions are formed by combining 3, 4, 9, 10-perylene tetracarboxylic dianhydride (PTCDA) with molybdenum disulfide (MoS2) monolayer or graphene and their fluorescence properties are studied, respectively. In the MoS2/PTCDA system, the fluorescence intensity is greatly enhanced, because the MoS2 surface promotes the epitaxial growth of PTCDA. However, in the graphene/PTCDA system, the fluorescence intensity is obviously reduced due to the transfer transition of photo-induced electrons in the heterojunction.
李洪飞, 梁涛, 谢爽, 汪胜平, 叶能, 徐明生. 二维材料/PTCDA异质结荧光性能[J]. 中国激光, 2017, 44(7): 0703011. Li Hongfei, Liang Tao, Xie Shuang, Wang Shengping, Ye Neng, Xu Mingsheng. Fluorescence Property of Two-Dimensional Materials/PTCDA Heterojunctions[J]. Chinese Journal of Lasers, 2017, 44(7): 0703011.