Sensing of ultraviolet light: a transition from conventional to self-powered photodetector

Abstract

Classification of device structures and applications of self-powered ultraviolet photodetectors.

CuBi2O4nanocrystals integrated with polyaniline nanobelt arrays for weak light photomultiplication type photodetector

“…[12][13][14][15] Since it is impracticable to provide or replace a power source for each device, only self-driven or ultralow-power photodetectors are suitable for applications like wearable medical monitoring and outdoor environmental sensing for wireless sensor networks. 7,[16][17][18][19][20][21] Self-driven photodetectors have been proposed using a wide range of device topologies. The photovoltaic effect, which enables the p-n junction to generate a sizable photocurrent without an external bias, makes it the semiconductor that is most frequently explored.…”

MOF-Derived In2O3 Microrods for High-Performance Photoelectrochemical Ultraviolet Photodetectors

“…Ultraviolet photodetectors (UV PDs), which can convert UV light into electronic signals, have attracted extensive attention owing to their wide applications , in diverse fields of military and national economies, such as safety detection, environmental monitoring, communication, and industrial processing control. − To meet the growing demand, the development of high-performance UV PDs with high photoresponse, − good spectral sensitivity, , and high stability is particularly important. Traditional solid-state wide-bandgap semiconductor-based UV PDs are mature in manufacturing technology and mass production, but there are still some shortcomings in complex fabrication processes and requirements of high-quality materials. − Compared with traditional solid-state , UV PDs, photoelectrochemical (PEC) UV PDs have some merits, such as simple fabrication processes, good photosensitivity, and being suitable for underwater optical communication . Therefore, PEC PDs have good development prospects and could be commercialized in the future.…”

Enhanced Performance of Triboelectric Nanogenerator with Micro‐Rhombic Patterned PDMS for Self‐Powered Wearable Sensing

“…[4][5][6][7] Moreover, untreated waste batteries not only cause serious pollution to the environment but also contain heavy metals that are transmitted to humans through the food chain, causing various diseases. [8][9][10] In 2012, the invention of the triboelectric nanogenerator (TENG) pointed a new direction to continuously power small wearable devices by converting mechanical energy into electrical energy through contact electrification and electrostatic induction effects. [11,12]…”