Fully Depleted Self-Aligned Heterosandwiched Van Der Waals Photodetectors

Fully Depleted Self-Aligned Heterosandwiched Van Der Waals Photodetectors

© 2022 Wiley-VCH GmbH.

Bibliographische Detailangaben
Veröffentlicht in:Advanced materials (Deerfield Beach, Fla.). - 1998. - 34(2022), 39 vom: 01. Sept., Seite e2203283
1. Verfasser: Wang, Fang (VerfasserIn)
Weitere Verfasser: Liu, Zhiyi, Zhang, Tao, Long, Mingsheng, Wang, Xiuxiu, Xie, Runzhang, Ge, Haonan, Wang, Hao, Hou, Jie, Gu, Yue, Hu, Xin, Song, Ze, Wang, Suofu, Dong, Qingsong, Liao, Kecai, Tu, Yubing, Han, Tao, Li, Feng, Zhang, Zongyuan, Hou, Xingyuan, Wang, Shaoliang, Li, Liang, Zhang, Xueao, Zhao, Dongxu, Shan, Chongxin, Shan, Lei, Hu, Weida
Format: Online-Aufsatz
Sprache:English
Veröffentlicht: 2022
Zugriff auf das übergeordnete Werk:Advanced materials (Deerfield Beach, Fla.)
Schlagworte:Journal Article 2D materials black phosphorus molybdenum disulfide photodetectors van der Waals heterojunctions
Beschreibung
Zusammenfassung:© 2022 Wiley-VCH GmbH.
Room-temperature-operating highly sensitive mid-wavelength infrared (MWIR) photodetectors are utilized in a large number of important applications, including night vision, communications, and optical radar. Many previous studies have demonstrated uncooled MWIR photodetectors using 2D narrow-bandgap semiconductors. To date, most of these works have utilized atomically thin flakes, simple van der Waals (vdW) heterostructures, or atomically thin p-n junctions as absorbers, which have difficulty in meeting the requirements for state-of-the-art MWIR photodetectors with a blackbody response. Here, a fully depleted self-aligned MoS2 -BP-MoS2 vdW heterostructure sandwiched between two electrodes is reported. This new type of photodetector exhibits competitive performance, including a high blackbody peak photoresponsivity up to 0.77 A W-1 and low noise-equivalent power of 2.0 × 10-14  W Hz-1/2 , in the MWIR region. A peak specific detectivity of 8.61 × 1010  cm Hz1/2  W-1 under blackbody radiation is achieved at room temperature in the MWIR region. Importantly, the effective detection range of the device is twice that of state-of-the-art MWIR photodetectors. Furthermore, the device presents an ultrafast response of ≈4 µs both in the visible and short-wavelength infrared bands. These results provide an ideal platform for realizing broadband and highly sensitive room-temperature MWIR photodetectors
Beschreibung:Date Revised 28.09.2022
published: Print-Electronic
Citation Status PubMed-not-MEDLINE
ISSN:1521-4095
DOI:10.1002/adma.202203283