A5101727793- Perovskite Materials and Applications
- 2D Materials and Applications
- Semiconductor Quantum Structures and Devices
- Advanced Photocatalysis Techniques
- Advanced Semiconductor Detectors and Materials
- Quantum Dots Synthesis And Properties
- MXene and MAX Phase Materials
- Ga2O3 and related materials
- Gas Sensing Nanomaterials and Sensors
- ZnO doping and properties
- Photonic and Optical Devices
- CCD and CMOS Imaging Sensors
- Advanced Memory and Neural Computing
- Infrared Target Detection Methodologies
- Aluminum Alloy Microstructure Properties
- Neural Networks and Reservoir Computing
- Nanowire Synthesis and Applications
- GaN-based semiconductor devices and materials
- Transition Metal Oxide Nanomaterials
- Covalent Organic Framework Applications
- Chalcogenide Semiconductor Thin Films
- Luminescence Properties of Advanced Materials
- Microstructure and Mechanical Properties of Steels
- Fiber-reinforced polymer composites
- Coal Combustion and Slurry Processing
University of Electronic Science and Technology of China
2009-2025
Dalian Jiaotong University
2023
University College London
2019-2021
Nanjing University of Aeronautics and Astronautics
2007-2014
Beijing Jiaotong University
2013
Central South University
2007
China University of Mining and Technology
2000
Abstract Flexible devices are garnering substantial interest owing to their potential for wearable and portable applications. Here, flexible self‐powered photodetector arrays based on all‐inorganic perovskite quantum dots (QDs) reported. CsBr/KBr‐mediated CsPbBr 3 QDs possess improved surface morphology crystallinity with reduced defect densities, in comparison the pristine ones. Systematic material characterizations reveal enhanced carrier transport, photoluminescence efficiency, lifetime...
Covalent triazine-based frameworks (CTFs), a group of semiconductive polymers, have been identified for photocatalytic water splitting recently. Their adjustable band gap and facile processing offer great potential discovery development. Here, we present series CTF-0 materials fabricated by two different approaches, microwave-assisted synthesis an ionothermal method, driven visible-light irradiation. The material (CTF-0-M2) synthesized microwave technology shows high activity hydrogen...
Solution-processed MXene–perovskite image sensor arrays are realized by a top-down method, which combine desirable manufacturing advantages and state-of-the-art performance metrics.
Abstract P–n junctions based on 2D materials can be achieved using a selective doping technique, while such method is challenged by the complex fabrication process. Here, facile van der Waals (vdWs) structured p–n heterojunction demonstrated simply transferring an n‐type multilayer α‐In 2 Se 3 (direct bandgap) p‐type ultra‐thin WSe nanosheet. The vdWs stacked photodetector with improved type‐II band alignment not only realizes broadband spectral response from visible to near infrared...
ZnO nanoparticle decorated all-inorganic perovskite quantum dots exhibit improved photoresponse and long-term stability.
Abstract The recently demonstrated Cs 3 Bi 2 I 9 single crystals (SCs) exhibit superior performance for X‐ray detection. More importantly, they do not contain any toxic lead element. However, compared with lead‐halide perovskites, one challenge the SC detection application is that it difficult to prepare large‐sized and high‐quality SCs. Here, a liquid diffused separation induced crystallization (LDSC) method employed grow SCs eliminating temperature fluctuation convection currents caused by...
Two-dimensional (2D) molybdenum disulfide (MoS2) has emerged as a prospective candidate for photodetection. However, due to the surface defects formed during synthesis, low photoresponse of 2D MoS2 photodetectors restricts its practical applications. Here, we developed hybrid plasmonic structure that integrates MXene nanoparticles (MNPs) and MoS2. With introduction MNPs, light waves are concentrated on nanosheets via strong localized plasmon resonance. Consequently, MNPs-decorated exhibit an...
Cesium lead bromide perovskites have demonstrated enormous potential in detecting applications, benefitting from their excellent optoelectronic properties and environmental stability. However, intrinsic of photoluminescence intensity carrier lifetime, key to photodetector performance, are still limited with conventional approaches (e.g., material purification defect passivation). Here, we propose an efficient ultrasound-assisted growth method manipulate the crystal phase all-inorganic...
Abstract Intrinsically high attenuation of X‐rays and excellent optoelectronic properties endow Cs 3 Bi 2 I 9 with great promise for high‐performance X‐ray detectors. However, preparation quality single crystal large area millimeter‐thick remains challenging time‐consuming. A size scalable growth technology, a mechanical sintering process, which is applicable the integration in image detectors proposed this work. Compared wafer, /MXene composite wafer exhibits higher carrier transfer...
InGaAs photodiodes have a wide range of important applications; for example, NIR imaging, fiber optical communication, and spectroscopy. In this paper, we studied with different doping concentration absorber layers. The simulated results suggested that, by reducing the from 1 × 1016 to 1015 cm−3, maximum quantum efficiency devices can rise 1.2%, 58%. simulation also showed increasing layer within certain range, dark current device be slightly reduced. A PIN structure was grown fabricated, CV...
Abstract 3D incident light confinement by radical electromagnetic fields offers a facile and novel way to break through the performance limit of inorganic perovskite CsPbBr 3 quantum dots (QDs). Herein, metallic nanoparticles decorated anodic aluminum oxide (AAO) hybrid plasmonic nanostructures with geometric control are first proposed for cyclic utilization photodetectors, enabled spatially extended confinement. The drastic multiple interference induced coupling within AAO matrixes...
Sole surface passivation for III–V nanowire photodetectors exhibits limited photoresponse improvement. Consequently, a well-customized contact design is crucial. Here, GaAs nanowire-based metal-semiconductor-metal via treatment and interfacial optimization are reported. The strategy inhibits the recombination and, importantly, effectively reduces Fermi-level pinning effect by redistribution of states. It leads to Schottky barrier height reduced from ∼0.63 ∼0.36 eV at Ni/GaAs contact....
Abstract This study employs an effective oxygen (O 2 ) plasma treatment to fabricate multilayer molybdenum diselenide (MoSe photodetectors for visible and near‐infrared (NIR) detection. With the introduction of O treatment, atomic oxidized layer is generated prevent direct interaction from water (H 0) molecules in air, leading improved environmental stability. Meanwhile, bonded atoms provide electron‐rich atmosphere, which can effectively reduce intrinsic Se vacancies generate a strong...
The dilemma of harvesting fugacious photons by photoactive nanomaterials limited absorption volume fundamentally hinders the photodetection at relatively lower light intensities. To address insufficient utilization efficiency, spatial confinement becomes an effective and promising approach. High-performance ultraviolet (UV) photodetectors based on self-assembled Au nanoparticle/ZnO honeycomb nano-mesh (Au NP/ZnO HN) are demonstrated through a facile solution-processed method anodized...