Enhancement of responsivity and a self-powered on-chip LNOI integrated Bi2Te3 photodetector array

doi:10.1364/OL.553705

	Enhancement of responsivity and a self-powered on-chip LNOI integrated Bi2Te3 photodetector array
	Dong, Qiaonan1,2,3,4 ; Sun, Xinxing 4; Yuan, Tingfei 1,2; Gao, Lang 1,2,4; Zheng, Yong 4; Wu, Rongbo 4; Qi, Hongxin 4; Cheng, Ya 1,2,4
	2025-03-01
发表期刊	OPTICS LETTERS (IF:3.1[JCR-2023],3.1[5-Year])
ISSN	0146-9592
EISSN	1539-4794
卷号	50 期号:5 页码:1711-1714
发表状态	已发表
DOI	10.1364/OL.553705
摘要	The topological insulator Bi2Te3 possesses an extraordinary optoelectronic property for wide-band optoelectronics device applications. In this study, we demonstrate a highresponsivity and self-powered on-chip lithium niobate on insulator (LNOI) waveguide-integrated Bi2Te3 photodetector array operating at 1550 nm. Enhancement of responsivity is attributed to the decreased Bi2Te3/Au contact resistance, which is facilitated by electrothermal annealing. The post-electrothermal annealed on-chip photodetector was demonstrated a photocurrent response increased by four orders of magnitude, reaching as high as 5.5 mu A. It features a photoresponsivity of 60 mA/W and a response time of 10 mu s. The uniform performance of the fabricated Bi2Te3 photodetector arrays integrated with 4x multi-mode interference on the same LNOI photonic chips proves its potential for applications in high-efficiency optical communication, optical computing, and large-scale data processing. (c) 2025 Optica Publishing Group. All rights, including for text and data mining (TDM), Artificial Intelligence (AI) training, and similar technologies, are reserved.
关键词	Data reduction Directed graphs Integrated optoelectronics Network security Network theory (graphs) Optical data processing Particle beams Photonic devices Photonic integrated circuits Photons Topological insulators Trees (mathematics) Lithium niobate On chips Optical- Optoelectronics devices Optoelectronics property Photo detector array Responsivity Self-powered Topological insulators Wide-band
URL	查看原文
收录类别	SCI ; EI
语种	英语
资助项目	National Natural Science Foundation of China["12274130","12334014","12192251","61991444","11933005","12174113","12174107","12134001"] ; National Key Research and Development Program of China["2019YFA0705000","2022YFA1404600","2022YFA1205100"] ; Science and Technology Commission of Shanghai Municipality[21DZ1101500] ; Shanghai Municipal Science and Technology Major Project[2019SHZDZX01] ; Innovation Program for Quantum Science and Technology[2021ZD0301403]
WOS研究方向	Optics
WOS类目	Optics
WOS记录号	WOS:001437962400005
出版者	Optica Publishing Group
EI入藏号	20251118020544
EI主题词	Photodetectors
EI分类号	1004 Thermoelectric Energy and Power Generation ; 1106 Computer Software, Data Handling and Applications ; 1106.2 Data Handling and Data Processing ; 1201.8 Discrete Mathematics and Combinatorics, Includes Graph Theory, Set Theory ; 1301.1.3 Atomic and Molecular Physics ; 1301.2.1 High Energy Physics ; 714.2 Semiconductor Devices and Integrated Circuits ; 715 Electronic Equipment, General Purpose and Industrial ; 741.1 Light/Optics ; 741.3 Optical Devices and Systems ; 942.1.7 Special Purpose Instruments
原始文献类型	Journal article (JA)
文献类型	期刊论文
条目标识符	https://kms.shanghaitech.edu.cn/handle/2MSLDSTB/496915
专题	物质科学与技术学院物质科学与技术学院_博士生
通讯作者	Sun, Xinxing
作者单位	1.Chinese Acad Sci, Shanghai Inst Opt & Fine Mech SIOM, State Key Lab High Field Laser Phys, Shanghai 201800, Peoples R China 2.Chinese Acad Sci, CAS Ctr Excellence Ultraintense Laser Sci, Shanghai Inst Opt & Fine Mech SIOM, Shanghai 201800, Peoples R China 3.ShanghaiTech Univ, Sch Phys Sci & Technol, Shanghai 200031, Peoples R China 4.East China Normal Univ, Sch Phys & Elect Sci, Extreme Optoelectromechan Lab XXL, Shanghai 200241, Peoples R China
第一作者单位	物质科学与技术学院
推荐引用方式 GB/T 7714	Dong, Qiaonan,Sun, Xinxing,Yuan, Tingfei,et al. Enhancement of responsivity and a self-powered on-chip LNOI integrated Bi2Te3 photodetector array[J]. OPTICS LETTERS,2025,50(5):1711-1714.
APA	Dong, Qiaonan.,Sun, Xinxing.,Yuan, Tingfei.,Gao, Lang.,Zheng, Yong.,...&Cheng, Ya.(2025).Enhancement of responsivity and a self-powered on-chip LNOI integrated Bi2Te3 photodetector array.OPTICS LETTERS,50(5),1711-1714.
MLA	Dong, Qiaonan,et al."Enhancement of responsivity and a self-powered on-chip LNOI integrated Bi2Te3 photodetector array".OPTICS LETTERS 50.5(2025):1711-1714.