Two-step ligand exchange to promote charge transfer in PbSe quantum dot photodetectors for pulse monitoring

2025/01/01 by Jingwen Yang, Zaihua Duan, Wenxin Zeng +8 · 1 voice
Engineering · Materials Science · #Chalcogenide Semiconductor Thin Films #Nonlinear Optical Materials Research #Quantum Dots Synthesis And Properties

paper · doi:10.1039/d5nh00495k

openalex publication_date 2025/01/01 · openalex created_date 2025/08/26 · openalex updated_date 2026/06/11

Abstract

Jones and a record high external quantum efficiency of 144.4% at a bias voltage of 0.5 V at 1100 nm. Benefitting from the high performance, the PbSe QD photodetector can be integrated into a pulse monitoring platform, achieving a physiological sign monitoring by capturing real-time pulse signals of human superficial arteries.

Discussions

• Check out the outside front cover of Issue 11 of Nanoscale Horizons! #NH10years In this work, Zaihua Duan, Huiling Tai et al. reported a two-step ligand exchange strategy for improving the performance [bsky, 1 points, 0 comments]

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