5/29/2023 0 Comments Spectra laser level![]() ![]() Tailoring solvent coordination for high-speed, room-temperature blading of perovskite photovoltaic films. ![]() Perovskite-filled membranes for flexible and large-area direct-conversion X-ray detector arrays. Highly narrowband perovskite single-crystal photodetectors enabled by surface-charge recombination. Handbook of Particle Detection and Imaging (Springer, 2019).įang, Y., Dong, Q., Shao, Y., Yuan, Y. Spatially resolved dark count rate of SiPMs. Characterization of large-area SiPM array for PET applications. in Advanced Technology and Particle Physics (ed. ![]() Advantages and pitfalls of the silicon photomultiplier (SiPM) as photodetector for the next generation of PET scanners. SiPM for fast photon-counting and multiphoton detection. Single-photon detectors for optical quantum information applications. Lidar with SiPM: some capabilities and limitations in real environment. Lightweight SiPM-based CeBr 3 gamma-ray spectrometer for radiation-monitoring systems of small unmanned aerial vehicles. The silicon photomultiplier: fundamentals and applications of a modern solid-state photon detector. Photocatalytic hydrogen generation from hydriodic acid using methylammonium lead iodide in dynamic equilibrium with aqueous solution. Perovskite light-emitting diodes with external quantum efficiency exceeding 20 per cent. Stabilizing perovskite-substrate interfaces for high-performance perovskite modules. This study opens a new application of photon counting for perovskites that uses their unique defect properties.Ĭhen, S. The zero-bias operation of perovskite detectors enables no drift of noise and detection property. The perovskite PCDs can collect γ-ray spectra with better energy resolution than SiPMs and maintain performance at high temperatures up to 85 ☌. It greatly suppresses dark count rate (DCR) from >20,000 counts per second per square millimetre (cps mm −2) to 2 cps mm −2 at room temperature, enabling much better response to weak light than SiPMs. We show that these shallow traps can be reduced by grain-size enhancement and surface passivation using diphenyl sulfide, respectively. Two shallow traps with energy depth of 5.8 ± 0.8 millielectronvolts (meV) and 57.2 ± 0.1 meV are identified in polycrystalline methylammonium lead triiodide, which mainly stay at grain boundaries and the surface, respectively. The photon-counting capability of perovskite photon-counting detectors (PCDs) is mainly determined by shallow traps, despite that deep traps also limit charge-collection efficiency. Here we show that self-powered polycrystalline perovskite photodetectors can rival the commercial silicon photomultipliers (SiPMs) for photon counting. Metal-halide perovskites (MHPs) have been successfully exploited for converting photons to charges or vice versa in applications of solar cells, light-emitting diodes and solar fuels 1, 2, 3, for which all these applications involve strong light. ![]()
0 Comments
Leave a Reply. |