Photoinduced charge transfer in one-photon and two-photon absorption of C2N: Effects of edge-modified with oxygenated groups

被引：5
|
作者：
Wang, Wenjun [1 ]
Xu, Xuesong [1 ]
Yang, Zijiang [2 ]
机构：
[1] Dalian Maritime Univ, Sch Sci, Dalian 116026, Peoples R China
[2] Dalian Univ Technol, Key Lab Mat Modificat Laser Electron & Ion Beams, Minist Educ, Sch Phys, Dalian 116024, Peoples R China
来源：
CHEMICAL PHYSICS LETTERS | 2021年 / 778卷
基金：
中国国家自然科学基金;
关键词：
C2N; Two-photon absorption; Photoinduced charge transfer; Edge-modified; EXCHANGE; CATALYST; DOTS;
D O I：
10.1016/j.cplett.2021.138810
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
C2N has become a promising two-dimensional material in fundamental researches and potential applications, while its light absorption properties got little attention. Here, the one-photon absorption (OPA) and two-photon absorption (TPA) spectra and the corresponding photoinduced charge transfer characteristics of C2N and C2N edge-modified with oxygenated groups (C(2)NOG) are calculated and analyzed in detail by using density functional theory and visualization methods. Compared with C2N, the OPA peaks of C(2)NOG are contributed by more excited states. For TPA process, there is only two-step transition behaviors on C2N, whereas the results of C(2)NOG present both one-step and two-step transition characteristics.
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页数：10
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