Room-temperature MoTe2/InSb heterostructure large-area terahertz detector
文献类型:期刊论文
作者 | Wang, Jiatong3; Zhang, Min1,3; Zhou, Zhiwen3; Li, Ling3; Song, Qi2; Yan, Peiguang3 |
刊名 | Infrared Physics and Technology |
出版日期 | 2024-03 |
卷号 | 137 |
ISSN号 | 13504495 |
关键词 | Terahertz detector Heterostructure Interdigital electrodes |
DOI | 10.1016/j.infrared.2024.105190 |
产权排序 | 3 |
英文摘要 | As a building block for terahertz system, terahertz detector is expected to achieve high-performance, room-temperature, low-cost and large-area detection available. However, the state-of-the-art technologies still suffer from various drawbacks. This paper presents a MoTe2/InSb heterostructure large-area terahertz detector. With the photoactive region of heterostructure, carriers are allowed to assemble within the interface due to the carrier mobility difference, resulting in detection sensitivity improvement. The structures and bonding of MoTe2/InSb heterostructure were characterized by Raman spectroscopy. Besides, large-scale interdigital electrodes with subwavelength spacing are employed at the bottom of photoactive region, which contrasts with normal electrodes coated on both sides of the active layer, endowing a large effective detection area of 2 mm × 6.65 mm with the detector. Subwavelength electrodes spacing not only facilitates the directional migration of carriers, but also induces electromagnetic induced well (EIW) effects to obtain extraordinary performance. As a result, the detector achieves a noise equivalent power (NEP) of 2.66 pW Hz-1/2 and a detectivity (D*) of 0.53 × 1012 cm Hz1/2 W−1 under 0.1 THz radiation at room temperature. The proposed high-performance terahertz detector exhibits remarkable prospects in varieties of applications. © 2024 The Author(s) |
语种 | 英语 |
出版者 | Elsevier B.V. |
源URL | [http://ir.opt.ac.cn/handle/181661/97203] |
专题 | 西安光学精密机械研究所_瞬态光学技术国家重点实验室 |
通讯作者 | Song, Qi |
作者单位 | 1.The State Key Laboratory of Transient Optics and Photonics, Xi'an; 710119, China 2.School of Physics Science and Information Technology, Liaocheng University, Liaocheng; 252059, China; 3.Key Laboratory of Optoelectronic Devices and Systems of Ministry of Education and Guangdong Province, Shenzhen University, Shenzhen; 518060, China; |
推荐引用方式 GB/T 7714 | Wang, Jiatong,Zhang, Min,Zhou, Zhiwen,et al. Room-temperature MoTe2/InSb heterostructure large-area terahertz detector[J]. Infrared Physics and Technology,2024,137. |
APA | Wang, Jiatong,Zhang, Min,Zhou, Zhiwen,Li, Ling,Song, Qi,&Yan, Peiguang.(2024).Room-temperature MoTe2/InSb heterostructure large-area terahertz detector.Infrared Physics and Technology,137. |
MLA | Wang, Jiatong,et al."Room-temperature MoTe2/InSb heterostructure large-area terahertz detector".Infrared Physics and Technology 137(2024). |
入库方式: OAI收割
来源:西安光学精密机械研究所
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