We are proud to share a new publication by our 2D-PRINTABLE partner from VSCHT: “Next-Generation Self-Powered Photodetectors using 2D Bismuth Oxide Selenide Crystals”, featured in ACS Applied Nano Materials.
The concept of self-powered photodetectors has attracted significant attention due to their versatile applications in areas such as intelligent systems and hazardous substance detection. The study focuses on the ultrasensitive photodetector platform based on photoelectrochemical (PEC) principles, which utilizes bismuth oxide selenide (Bi2O2Se), a material with a wide bandgap (~2 eV) and high absorption coefficient. Through chemical exfoliation, thin layers of Bi2O2Se were obtained, enabling highly efficient photodetection. The results demonstrate impressive performance metrics, including a responsivity of 97.1 μA W⁻¹, a specific detectivity of 2 × 10⁸ cm Hz1/2 W⁻¹, and ultrafast response and recovery times (~82 ms and ~86 ms). Moreover, these self-powered photodetectors show excellent stability in electrochemical environments, positioning them promising candidates for integration into future high-efficiency devices.
Congratulations to VSCHT on this outstanding achievement!
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