Room-Temperature Band-Aligned Infrared Heterostructures for Integrable Sensing and Communication.

ABSTRACT: The demand for miniaturized and integrated multifunctional devices drives the progression of high-performance infrared photodetectors for diverse applications, including remote sensing, air defense, and communications, among others. Nonetheless, infrared photodetectors that rely solely on single low-dimensional materials often face challenges due to the limited absorption cross-section and suboptimal carrier mobility, which can impair sensitivity and prolong response times. Here, through experimental validation is demonstrated, precise control over energy band alignment in a type-II van der Waals heterojunction, comprising vertically stacked 2D Ta₂NiSe₅ and the topological insulator Bi₂Se₃, where the configuration enables polarization-sensitive,

SUBMITTER: Xiao K 

PROVIDER: S-EPMC11423140 | biostudies-literature | 2024 Sep

REPOSITORIES: biostudies-literature