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Articles by Longxing Su
Room temperature gas sensor based on rGO/Bi2S3 heterostructures for ultrasensitive and rapid NO2 detection
Nitrogen dioxide (NO2) is a kind of harmful gas in the air that can trigger photochemical smog, acid rain, and multiple diseases [1], [2]. It mainly originates from the combustion of fossil fuels and exhaust emissions from factories. According to the primary standards of the United States Environmental Protection Agency (EPA), continuous exposure to NO2 exceeding 53 ppb can cause health issues such as dizziness, stimulation of eyes, and chronic bronchitis [3], [4].
Kilogram-scale high yield production of PbI2 microcrystals for optimized photodetector
Kilogram-scale high yield production of PbI2 microcrystals for optimized photodetector Exploring a new material with optoelectronic properties and studying its phonon and photon properties are of great value for our practical applications. Herein, we have demonstrated a photodetector based on the layered PbI2 microcrystals synthesized by a high yield production strategy. The temperature-dependent Raman study further reveals the red-shift of the phonon frequencies with the increase of temperature.
Growth of a Sub-Centimeter-Sized CsPbBr3 Bulk Single Crystal Using an Anti-Solvent Precipitation Method
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Pulsed laser deposition of a Ga2O3 thin film for an optoelectronic synaptic device
With the rapid development of information era, the traditional von Neumann architecture faces the computing bottleneck, and integration of memory and perception is regarded as a potential solution. Herein, a Ga2O3/Si heterojunction based multi-modulated optoelectronic synaptic device is fabricated and demonstrated.
Researchers use lead recycled from car batteries to make photodetectors
As lithium-ion batteries continue to decrease in price, they are quickly replacing the lead-acid batteries traditionally used in cars and other vehicles. This is creating a sudden abundance of used lead-acid batteries, which ...
A photodetector fabricated from 2H-PbI2 micro-crystals recycled from waste lead acid batteries
Abstract Recycling Pb from lead acid batteries is rather important in environmental protection, but current strategies need a high temperature or produce secondary pollution. Herein, we present a green reactant recycling method to synthesize PbI2 micro-crystals by extracting the Pb from waste lead acid batteries.
A two-terminal binary HfO2 resistance switching random access memory for artificial synaptic device
A two-terminal binary HfO2 resistance switching random access memory for artificial synaptic device Longxing Su, Xiaozhang Chen, You Lv, Zhaobo Tian, Jingxi Yang and Yuan Zhu Abstract In this work, we have developed an artificial synaptic device based on the HfO2 nanocrystals synthesized by using a simple hydrothermal method. The metal-insulator-metal (MIM) structure device is designed and fabricated by combining a ceramic-like preparation technique and a standard electrode preparation method.
An all-inorganic CsPbBr3/GaN hetero-structure for a near UV to green band photodetector
An all-inorganic CsPbBr3/GaN hetero-structure for a near UV to green band photodetector† Perovskites are promising candidates for photodetectors because of their excellent optical absorption coefficient and long carrier transportation length. However, most perovskites face the great challenge of instability and narrow band response.
All-inorganic CsPbBr3/GaN hetero-structure for near UV to green band photodetector
All-inorganic CsPbBr3/GaN hetero-structure for near UV to green band photodetector Perovskites are promising candidates in photodetectors because of their excellent optical absorption coefficient and long carrier transportation length. However, most perovskites face the great challenge of instability and narrow band response.
Back-to-back Symmetric Schottky Type UVA Photodetector based on Ternary Alloy BeZnO
In this work, a back-to-back symmetric Schottky type ultraviolet (UV) photodetector based on ternary alloy BeZnO was reported. A high quality ternary alloy BeZnO was grown on c-sapphire substrate via rf-plasma assisted molecular beam epitaxy (rf-MBE). The bandgap of the BeZnO film was confirmed to be 3.54 eV and two-mode phonon vibration behavior was found in the resonant Raman spectrum.
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