Hark Hoe Tan

Self‐Powered, Ultra‐Sensitive InGaAs/ITO Nanowire Radial Junction Infrared Photodiode for Low Flux Imaging at Room Temperature

ABSTRACT Shortwave infrared (SWIR) photodetection and imaging are of increasing importance for many emerging applications, such as optical and quantum communications, night vision, biomedical imaging and sensing. While planar InGaAs and Ge‐based SWIR photodetectors are the curren...

Hot Carrier Trapping in InAs Nanowires for Ultraviolet to Infrared Photodetection

Abstract Semiconducting InAs nanowires are promising building blocks for optoelectronics, but their performance is often complicated by an unusual negative photoconductivity (NPC) originating from surface charge traps. Harnessing the competition between this NPC and conventional...