Recent progress in construction methods and applications of perovskite photodetector arrays

Abstract

Metal halide perovskites are considered promising materials for next-generation optoelectronic devices due to their excellent optoelectronic performances and simple solution preparation process. Precise micro/nano-scale patterning techniques enable perovskite materials to...

Modulating the nonlinear optical properties of MAPbBr3 by metal ion doping

“…1 Various NLO materials, such as perovskites, 2–4 metal–organic frameworks, 5,6 metal oxides, 7,8 and two-dimensional materials, 9,10 have been explored for NLO devices. Among these, perovskites show the advantages of high light absorption, 11 extremely effective luminescence, 12 and prolonged carrier diffusion lengths, 13 making them ideal candidates for high performance optoelectronic devices, such as photodetectors, 14,15 lasers, 16,17 solar cells, 18,19 all-optical switches 20 and optical limiters. 21,22 Hybrid organic–inorganic metal halide perovskites, denoted as MAPbX 3 (MA = CH 3 NH 3 , X = Br, Cl, I), have demonstrated excellent NLO properties.…”

Intrinsic Coupling between Piezoelectric and Electronic Transport Properties in Janus γ-GeSnXO (X = S, Se) Monolayers with Vertical Piezoelectricity

“…In addition, several Janus materials with excellent photocatalytic and electronic properties have been discovered, along with heterojunction materials with adjustable electronic properties and energy-saving properties. , In addition to the aforementioned energy, there is another widely distributed mechanical energy in nature, namely blue energy, which has a very broad prospect for development and utilization . Wang et al developed the first piezoelectric effect-based nanogenerator in 2006, paving the way for direct conversion of mechanical energy. − Subsequently, nanogenerators were developed in applications such as the Internet of Things, sensor networks, and subsequent piezoelectric catalytic technologies. − The traditional power supply method is no longer able to meet the “random, high-entropy” energy demand of ubiquitous distributed electronic devices in the Internet of Things. Friction nanogenerators can harvest the energy of human movement and provide power for small distributed electronic devices.…”

Solar-Blind Photodetector Arrays Fabricated by Weaving Strategy

“…Practical applications of photodetectors, particularly in imaging, require the construction of a substantial number of pixels to form an array. , However, the development of Ga 2 O 3 photodetector arrays is still in its early stages, and the existing arrays exhibit several deficiencies, including inadequate micromachining technology, immature array growth technology, and underdeveloped design of readout circuits. , Currently, solar-blind photodetector arrays have been produced from thin films and micro/nanostructures. The production of multipixel photodetector arrays based on Ga 2 O 3 film primarily involves thin film processing and patterning technology, such as photolithography, etching, and electrode deposition .…”