中国光学2021，Vol.14Issue(1)：182-195,14.DOI:10.37188/CO.2020-0175
黑砷磷室温太赫兹探测器
Room-temperature terahertz photodetectors based on black arsenic-phosphorus
摘要
Abstract
Terahertz technology is indispensable in plenty of fields due to the abundant interactions between terahertz waves and matter.In order to meet the needs of terahertz applications,the development of highly sensitive and portable terahertz detectors based on distinctive physical mechanisms and various materials with excellent properties are urgently required.Black arsenic-phosphorus is a novel two-dimensional materi-al that has a tunable band gap and transport characteristics with varying chemical composition,which has gained widespread interest in optoelectronic applications.Recent research on b-AsxP1-x mainly focuses on in-frared detection,while the detection of terahertz has not yet been applied.Herein,an antenna-coupled tera-hertz detector based on exfoliated multilayer black arsenic-phosphorus is demonstrated.The terahertz re-sponse performance of the detector reflects two different mechanisms,which have a competitive relationship in the detection process.In particular,the detection mechanism can be tailored by varying the chemical com-position of black arsenic-phosphorus.By balancing the band gap and carrier mobility,a responsivity of over 28.23 V/W and a noise equivalent power of less than 0.53 nW/Hzlfl are obtained at 0.37 THz.This implies that black arsenic-phosphorus has great potential in terahertz technology.关键词
二维材料/太赫兹/黑砷磷/天线耦合探测器Key words
two-dimensional material/terahertz/black arsenic-phosphorus/antenna-coupled detector分类
信息技术与安全科学引用本文复制引用
董卓,陈捷,朱一帆,杨洁,王中长,张凯..黑砷磷室温太赫兹探测器[J].中国光学,2021,14(1):182-195,14.基金项目
国家自然科学基金资助项目(No.61927813,No.61875223,No.61922082) （No.61927813,No.61875223,No.61922082）
国家重点研发计划资助项目(No.2016YFE015700) This work was supported by the National Nat-ural Science Foundation of China(Grant No.61927813,61875223,61922082)and the National Key R&D Program of China(2016YFE015700).The support from the Vacuum Interconnected Nanotech Workstation(Nano-X)of the Suzhou Institute of Nano-tech and Nano-bionics(SINANO),Chinese Academy of Sciences is also acknowledged. （No.2016YFE015700）
