Broadband light absorption and photoresponse enhancement in monolayer WSe_(2) crystal coupled to Sb_(2)O_(3) microresonators

作     者：Kun Ye Lixuan Liu Congpu Mu Kun Zhai Shiliang Guo Bochong Wang Anmin Nie Shuhan Meng Fusheng Wen Jianyong Xiang Tianyu Xue Ming Kang Yongji Gong Yongjun Tian Zhongyuan Liu Kun Ye;Lixuan Liu;Congpu Mu;Kun Zhai;Shiliang Guo;Bochong Wang;Anmin Nie;Shuhan Meng;Fusheng Wen;Jianyong Xiang;Tianyu Xue;Ming Kang;Yongji Gong;Yongjun Tian;Zhongyuan Liu

作者机构：Center for High Pressure Science(CHiPS)State Key Laboratory of Metastable Materials Science&TechnologyYanshan UniversityQinhuangdao 066004China Hebei Key Laboratory of Microstructure Materials PhysicsSchool of ScienceYanshan UniversityQinhuangdao 066004China School of Materials Science and EngineeringBeihang UniversityBeijing 100191China School of Electrical EngineeringYanshan UniversityQinhuangdao 066004China College of Physics and Materials ScienceTianjin Normal UniversityTianjin 300387China 

出 版 物：《Nano Research》 (纳米研究（英文版）)

年 卷 期：2022年第15卷第5期

页      面：4653-4660页

核心收录：

学科分类：080901[工学-物理电子学] 0809[工学-电子科学与技术（可授工学、理学学位）] 08[工学] 080401[工学-精密仪器及机械] 0804[工学-仪器科学与技术] 0803[工学-光学工程] 0702[理学-物理学] 

基　　金：This work is supported by the National Natural Science Foundation of China(Nos.51732010,51972280 51801175),and Natural Science Foundation of Hebei Province(No.E2019203233) 

主　　题：transition metal dichalcogenides Sb_(2)O_(3)optical microresonator photodetectors enhanced absorption broad bandwidth 

摘      要：Monolayer(1L)transition metal dichalcogenides(TMDCs)have been attracting tremendous interest in recent years as promising candidate materials in atomic-scale optoelectronic devices due to their direct band gaps(1.5-2.2 eV)and strong light-matter ***,their practical applications are limited by low visible light absorption stemming from atomic thickness and negligible infrared ***,we report the triangular Sb_(2)O_(3) microresonators in wide thickness and lateral size distributions grown on 1L TMDCs and their created significant broadband enhancement of light adsorption and photoresponse in 1L WSe_(2) crystal via coexisting Fabry-Perot and whispering gallery type *** an example of demonstration,1L WSe_(2) crystal coupled to Sb_(2)O_(3) microresonators with widely distributed sizes exhibits the enhanced visible light absorption by up to 5 folds and the simultaneously extended near infrared(NIR)one of more than 50%.For application of 1L WSe_(2) in photodetection,incorporation of Sb2O3 microresonators leads to significantly enhanced visible light responsivity by~10^(4) order and expanded NIR one of more than 400 mA·W^(-1).Similar results have been observed in the other 1L W(Mo)dichalcogenides coupled to Sb2O3 *** work provides a new route for development of the high-performance monolayer TMDCs-based optoelectronic devices.