Ultrasensitive photoelectric detection with room temperature extremum.

ABSTRACT: Room-temperature photodetection holds pivotal significance in diverse applications such as sensing, imaging, telecommunications, and environmental remote sensing due to its simplicity, versatility, and indispensability. Although different kinds of photon and thermal detectors have been realized, high sensitivity of photodetection with room temperature extremum is not reported until now. Herein, we find evident peaks in the photoelectric response originated from the anomalous excitonic insulator phase transition in tantalum nickel selenide (Ta₂NiSe₅) for room-temperature optimized photodetection from visible light to terahertz ranges. Extreme sensitivity of photoconductive detector with specific detectivity (D*) of 5.3 × 10¹¹ cm·Hz^1/2·W^-

SUBMITTER: Wu T 

PROVIDER: S-EPMC11861971 | biostudies-literature | 2025 Feb

REPOSITORIES: biostudies-literature