Dual-functional hybrid ZnSnO/Graphene nanocomposites with applications in high-performance UV photodetectors and ozone gas sensors

Realization of a self-powered Cu2O ozone gas sensor through the lateral photovoltaic effect

“…A detailed schematic diagram of the O 3 gas sensor test system was presented in our previous study. 34,35…”

Easily Processable Cu2O/Si Self-Powered Photodetector Array for Image Sensing Applications

“…In the last decade, photodetectors (PDs) are highly desired for applications in many fields, such as optical communications, health monitoring, target detection, and remote sensing. − The most important application of PDs is as sensing units for a photodetector array (PDA) in an imaging system. − There are two categories of PDA in the perspective of built-in potential: those with built-in potential (e.g., p–n junctions) and those without built-in potential (e.g., metal–semiconductor–metal; MSM). , The monolithic design of an MSM-type structure is suited for two-dimensional array layouts, but the device structure is symmetrical, so there is no built-in potential . The p–n junction-type PD is widely used for PDAs because it has a self-powered characteristic, a high signal-to-noise ratio, and a fast response. , Most PDAs that use a p–n junction use a top-down method to produce the mesa structure for pixel isolation, , but dangling bonds form on the mesa sidewalls after the wet etching process, so there is a large surface leakage current .…”

Numerical Simulations of Nanolayered Heterostructures of Nanopatterned Graphene and Vanadium Oxide for Mid-Infrared Photodetectors Operating Close to Room Temperature

“…Although both heterostructures provide control over the phase transition temperature depending on the thickness of VO 2 , the advantage of h-BN is that it can be transferred onto target substrates. Note that our method does not require electron trapping and is not based on the photovoltaic effect …”

“…Note that our method does not require electron trapping 27 and is not based on the photovoltaic effect. 28…”