Band Tailoring Enabled Perovskite Devices for X-Ray to Near-Infrared Photodetection.

ABSTRACT: Perovskite semiconductors have shown significant promise for photodetection due to their low effective carrier masses and long carrier lifetimes. However, achieving balanced detection across a broad spectrum-from X-rays to infrared-within a single perovskite photodetector presents challenges. These challenges stem from conflicting requirements for different wavelength ranges, such as the narrow bandgap needed for infrared detection and the low dark current necessary for X-ray sensitivity. To address this, this study have designed a type-II FAPbI₃ perovskite-based heterojunction featuring a large energy band offset utilizing narrow bandgap tellurium (Te) semiconductor. This innovative design broadens the detection range into the infrared while simultaneously reducing dark current

SUBMITTER: He YC 

PROVIDER: S-EPMC11884567 | biostudies-literature | 2025 Mar

REPOSITORIES: biostudies-literature