红外与毫米波学报2026，Vol.45Issue(3)：366-373,8.DOI:10.11972/j.issn.1001-9014.2026.03.003
基于大面积半金属碲化铂的高性能太赫兹探测器
High-performance terahertz detectors based on large-area semimetallic platinum telluride(PtTe2)
摘要
Abstract
Terahertz(THz)detectors,which play a pivotal role in photoelectric conversion,are essential compo-nents in modern information society.Through chemical vapor deposition(CVD),large-area PtTe2 thin films were synthesized,allowing for the fabrication of THz detectors with varying channel lengths.Characterization re-sults demonstrate that the device response is linearly dependent on both bias voltage and incident power,while the responsivity is inversely proportional to channel length and operational frequency.These findings align with theo-retical calculations based on the electromagnetic induced well(EIW)mechanism.Notably,EIW-based devices exhibit a rapid response time of approximately 7.6 μs,with a noise equivalent power(NEP)below 7.9×10-15 W/Hz0.5 and a specific detectivity(D*)exceeding 9×1010 cm·Hz0.5/W under limited bias conditions.These perfor-mance metrics surpass those of previously reported semimetallic PtTe2-based detectors.关键词
太赫兹/探测器/碲化铂/电磁诱导势阱Key words
terahertz/detectors/platinum telluride/electromagnetic induced well分类
数理科学引用本文复制引用
黄德宝,周炜,黄敬国,邱琴茜,江林,姚娘娟,高艳卿,黄志明..基于大面积半金属碲化铂的高性能太赫兹探测器[J].红外与毫米波学报,2026,45(3):366-373,8.基金项目
Supported by the National Natural Science Foundation of China(52071329,12134016) （52071329,12134016）
the Youth Innovation Promotion Association,CAS(2022240)Strategic Priority Research Program of the Chinese Academy of Sciences(XDB0580000) （2022240）
the Open Fund of State Key Laboratory of Infrared Physics(SITP-NLIST-YB-2023-08) （SITP-NLIST-YB-2023-08）
the Shanghai Municipal Science and Technology Yangfan Special Project(23YF1455300) （23YF1455300）
