A5101823866- Perovskite Materials and Applications
- 2D Materials and Applications
- Nanowire Synthesis and Applications
- Gas Sensing Nanomaterials and Sensors
- Ga2O3 and related materials
- Quantum Dots Synthesis And Properties
- Advanced Photocatalysis Techniques
- MXene and MAX Phase Materials
- Organic Light-Emitting Diodes Research
- Solid-state spectroscopy and crystallography
- Advanced Chemical Sensor Technologies
- Analytical Chemistry and Sensors
- ZnO doping and properties
- Chalcogenide Semiconductor Thin Films
- Luminescence Properties of Advanced Materials
- Semiconductor materials and devices
- Graphene research and applications
- Conducting polymers and applications
- GaN-based semiconductor devices and materials
- Photonic and Optical Devices
- Optical properties and cooling technologies in crystalline materials
- Transition Metal Oxide Nanomaterials
- Tactile and Sensory Interactions
- Luminescence and Fluorescent Materials
- Advanced Sensor and Energy Harvesting Materials
Zhengzhou University
2016-2025
Northeastern University
2024-2025
China University of Petroleum, East China
2024
Hebei Eye Hospital
2024
Material (Belgium)
2020
Material Physics Center
2018
Chinese Academy of Sciences
2002-2014
Institute of Intelligent Machines
2014
Shanghai Institute of Optics and Fine Mechanics
2010
University of Chinese Academy of Sciences
2010
Polarization-sensitive photodetection in a broad spectrum range is highly desired due to the great significance military and civilian applications. Palladium diselenide (PdSe2), newly explored air-stable, group 10 two-dimensional (2D) noble metal dichalcogenide with puckered pentagonal structure, holds promise for polarization-sensitive photodetection. Herein, we report polarization-sensitive, broadband, self-powered photodetector based on graphene/PdSe2/germanium heterojunction. Owing...
Recently, a pressing requirement of solid-state lighting sources with high performance and low cost has motivated increasing research in metal halide perovskites. However, the relatively emission efficiency poor operation stability perovskite light-emitting diodes (LEDs) are still critical drawbacks. In this study, strategy solution-processed all-inorganic heterostructure was proposed to overcome issues facing challenges LEDs. Solution-processed n-ZnO nanoparticles p-NiO used as carrier...
The high-performance broadband photodetectors have attracted intensive scientific interests due to their potential applications in optoelectronic systems. Despite great achievements two-dimensional (2D) materials based such as graphene and black phosphorus, obvious disadvantages low optical absorbance instability preclude usage for the with desired performance. An alternative approach is find promising 2D fabricate heterojunction structures multifunctional hybrid photodetectors. In this...
Abstract White light‐emitting diodes (WLEDs) are promising next‐generation solid‐state light sources. However, the commercialization route for WLED production suffers from challenges in terms of insufficient color‐rendering index (CRI), color instability, and incorporation rare‐earth elements. Herein, a new two‐component strategy is developed by assembling two broadband emissive materials with self‐trapped excitons (STEs) high CRI stable WLEDs. The addresses effectively challenging issues...
High-performance self-powered solar-blind photodetector based on a MoS<sub>2</sub>/β-Ga<sub>2</sub>O<sub>3</sub> heterojunction was demonstrated, which exhibits excellent photoresponse properties.
Self-powered MoS<sub>2</sub>/GaN p–n heterojunction photodetectors exhibited high sensitivity to deep-UV light with responsivity, specific detectivity and fast response speeds.
High-performance perovskite photodetectors based on solution-processed all-inorganic CsPbBr<sub>3</sub> thin films were fabricated with a high photoresponsivity and on/off photocurrent ratio.
A self-driven and broadband photodetector based on PdSe<sub>2</sub>/SiNWA mixed-dimensional vdW heterojunction is fabricated, which shows a spectrum from 200 nm to 4.6 μm with high polarization sensitivity good mid-infrared imaging capability.
The rich variety and attractive properties of two-dimensional (2D) layered nanomaterials provide an ideal platform for fabricating next generation advanced optoelectronic devices. Recently, a newly discovered 2D PtSe2 thin film has exhibited outstanding broadband sensitivity properties. In our work, large-area was used to construct the PtSe2/CdTe heterojunction infrared photodetector (PD). This PD broad detection range coverage from 200 2000 nm with high responsivity 506.5 mA/W, specific...
High-performance and air-stable perovskite photodetectors were fabricated using lead-free double Cs<sub>2</sub>AgBiBr<sub>6</sub> thin films as light absorbers.
In this work, an effective strategy through doping of univalent Na+ ions, which are stable against oxidation and reduction, was proposed to enhance the emission efficiency stability orthorhombic CsPbBr3 nanocrystals (NCs). Compared with fresh NCs, a better color purity higher photoluminescence quantum yield were achieved, accompanied gradual blue shift peak increasing ratio. On one hand, passivation effect substantially reduces nonradiative trap centers in NCs. other density functional...
Abstract This work presents a strategy of combining the concepts localized surface plasmons (LSPs) and core/shell nanostructure configuration in single perovskite light‐emitting diode (PeLED) to addresses simultaneously emission efficiency stability issues facing current PeLEDs' challenges. Wide bandgap n‐ZnO nanowires p‐NiO are employed as carrier injectors, also bottom/upper protection layers construct coaxial heterostructured CsPbBr 3 quantum dots LEDs. Through embedding plasmonic Au...
Recently, halide perovskites have attracted tremendous attention because of their great abilities in large-scale and cost-effective manufacturing optoelectronic devices. Here, a novel photodetector configuration was proposed by employing vapor-processed micrometer-scale inorganic CsPbBr3 microplatelets as the light absorber. Temperature-dependent steady-state time-resolved photoluminescence spectra were first recorded to study emission mechanisms carrier recombination dynamics...
A high-performance self-powered photodetector based on a MoS<sub>2</sub>/GaAs heterojunction was demonstrated, which demonstrated high responsivity, specific detectivity, fast response speeds, as well polarization sensitivity.
Recently, the growing demand for optical anticounterfeiting technology has motivated intensive research in newly emerging halide perovskite quantum dots (QDs). However, poor stability and unsatisfactory fluorescence efficiency of such materials are main obstacles to application reliable anticounterfeiting. In this work, we performed a well-controlled investigation effect surfactant (l-α-phosphatidylcholine, LP) silica encapsulation on emission CsPbBr3 QDs. Because synergetic core/shell...
Indirectly monitoring halitosis via the detection of hydrogen sulfide (H2S) biomarkers using gas sensors is a newly emerging technique. However, such H2S are required with critically high selectivity and sensitivity, as well ppb-level limit, which remains technologically challenging. To address issues, here, we have developed highly sensitive selective NiO/WO3 nanoparticles (NPs), been synthesized by firstly hydrolyzing WO3 NPs subsequently decorating NiO in hydrothermal process....
High-performance room-temperature infrared photodetectors based on MoS<sub>2</sub>/CdTe p–n heterojunction with broadband response, high responsivity, specific detectivity as well fast response speed were demonstrated.
Recently, perovskite-based light-emitting diodes based on organometal halide emitters have attracted much attention because of their excellent properties high color purity, tunable emission wavelength and a low-temperature processing technique. As is well-known, organic shown powerful capabilities in this field; however, the fabrication these devices typically relies high-temperature high-vacuum processes, which increases final cost product renders them uneconomical for use large-area...
Recently, white light-emitting devices (WLEDs) based on halide perovskites has been extensively studied. However, the lead toxicity and poor stability of conventional severely hinder their commercial applications. In this study, lead-free double perovskite Cs2AgInCl6 with a broadband emission was fabricated by heat-assisted solution evaporation method, in which compositional engineering sodium (Na+) alloying bismuth (Bi3+) doping performed. The photoluminescence quantum yield promoted from...