The Journal of Physical Chemistry Letters, Journal Year: 2025, Volume and Issue: unknown, P. 4449 - 4455
Published: April 25, 2025
To achieve comprehensive environmental monitoring, photodetectors with broad operational wavelength range are crucial for capturing realistic wide-spectrum signals and supporting integrated system operations. This study presents a high-performance photodetector based on InSrO nanofiber (NF)/CsPbBr3 quantum dot (QD) heterojunctions, achieving broadband detection (230-500 nm) ultralow operating voltage (0.05 V). By synergistically combining the UV absorption of NFs visible-light sensitivity CsPbBr3 QDs, device exhibits responsivity 6.88 A·W-1 detectivity 6.39 × 1014 Jones. Systematic analysis reveals that heterointerface facilitates efficient charge separation, while 1D architecture enhances directional carrier transport. Notably, can retain 95% initial photocurrent after 15 days, demonstrating exceptional stability. work advance development energy-efficient optoelectronic devices monitoring optical communications applications.
Language: Английский