Optical properties of two-dimensional semi-conductive MXene Sc2COx produced by sputtering

被引：24
作者：
Chen, Qiran [1 ]
Zhang, Daohua [1 ]
Pan, Jisheng [2 ]
Fan, Weijun [1 ]
机构：
[1] Nanyang Technol Univ, Sch Elect & Elect Engn, Singapore 639197, Singapore
[2] Agcy Sci Technol & Res, Inst Mat Res & Engn IMRE, Singapore, Singapore
来源：
OPTIK | 2020年 / 219卷
关键词：
MXene; Semiconductor; Sputtering; Scandium; ELECTRONIC-STRUCTURE; TI3C2X2; X; ANODE; OH; NANOCARBIDES; CARBIDES; SC2O3;
D O I：
10.1016/j.ijleo.2020.165046
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
Semi-conductive MXene Sc2COx is synthesized by using magnetron sputtering. X-ray diffraction (XRD) and X-ray photoelectron spectroscopy (XPS) is performed to determine the composition of sample. The bandgap of Sc2COx sample is determined by ultraviolet-visible (UV-VIS) range absorption and photoluminescence (PL) spectrum. The Tauc plot indicates that Sc2COx is a direct bandgap material. The high sensitivity of scandium to oxygen makes the sample contain both scandium carbide and scandium oxide. Thermal annealing introduces more oxidation into the sample. Structure of MXene will be broken when the annealing temperature is higher than 600 degrees C.
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页数：7
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