A5049459878- Hydrocarbon exploration and reservoir analysis
- Coal Properties and Utilization
- Atmospheric and Environmental Gas Dynamics
- 2D Materials and Applications
- Perovskite Materials and Applications
- Hydraulic Fracturing and Reservoir Analysis
- ZnO doping and properties
- Ga2O3 and related materials
- Methane Hydrates and Related Phenomena
- Petroleum Processing and Analysis
- Graphene research and applications
- Geological and Geophysical Studies
- NMR spectroscopy and applications
- Geological Studies and Exploration
- Rock Mechanics and Modeling
- GaN-based semiconductor devices and materials
- Quantum Dots Synthesis And Properties
- Luminescence Properties of Advanced Materials
- Coal and Its By-products
- MXene and MAX Phase Materials
- Diamond and Carbon-based Materials Research
- Chalcogenide Semiconductor Thin Films
- Advanced Photocatalysis Techniques
- Thermochemical Biomass Conversion Processes
- Radiation Detection and Scintillator Technologies
China University of Mining and Technology
2015-2024
Tongji University
2024
Sun Yat-sen University
2017-2022
State Key Laboratory of Optoelectronic Materials and Technology
2017-2020
Systems Engineering Society of China
2020
Bridge University
2020
University Research Co (United States)
2020
Ministry of Education of the People's Republic of China
2013-2014
IBM Research - Thomas J. Watson Research Center
2010
Albany Molecular Research (United States)
2010
Energy-saving white lighting from the efficient intrinsic emission of semiconductors is considered as a next-generation source. Currently, white-light can be composited with blue light-emitting diode and yellow phosphor. However, this solution has an inevitable light loss, which makes improvement energy utilization efficiency more difficult. To deal problem, (IWE) in single solid material gives possibility. Here, all-inorganic lead-free CsCu2 I3 perovskite crystal (SC) stable high...
Nanostructure morphology and pore size distributions (PSDs) of 10 samples from the Lower Cambrian Niutitang Formation in northwestern Hunan were investigated using field emission scanning electron microscopy (FE-SEM), high-pressure mercury intrusion (HPMI), low-pressure nitrogen gas adsorption (LP-N2GA), carbon dioxide (LP-CO2GA). In combination with geochemical parameters mineral composition, factors influencing nanoscale structure analyzed. The results indicate that pores shale reservoirs...
Low-dimensional metal halide perovskites possessing a large exciton binding energy have shown great promise in achieving efficient photonic emission required the fields of lighting sources and display. Here, dual self-trapped (STE) emissions are directly observed low-dimensional inorganic copper iodine quasi-perovskite single crystal. The STEs natural structure-oriented performance, showing strong electron–phonon coupling. Temperature-dependent PL spectra Raman demonstrate thermal-assisted...
Vitrinite samples inserted into a furnace at room temperature and heated rate of 10 °C/h were subjected to X-ray diffraction analysis, Fourier transform infrared spectroscopy (FTIR), solid-state 13C nuclear magnetic resonance (13C NMR) characterize the macromolecular structure vitrinite different ranks coal, which was discussed with respect changes in its chemical structure. The results demonstrate that relationship between average reflectance is linear. structural parameters separated from...
Wide band gap CsPb<sub>2</sub>Br<sub>5</sub> flake single crystals have been successfully obtained and demonstrated to potential applications in deep-UV photodetection.
Abstract Large-size scintillators with high efficiency and ultrafast radiation fluorescence have shown more potential in the applications to ionizing detection of medical diagnosis, nuclear control high-energy physics. Currently, although traditional made tremendous progress scintillation efficiency, there are still challenges left lifetime. Faced that problem, we adopted 2-inch ZnO as substrate doped gallium activator realize an excited by α-ray, which decay time is only 600 ps shortest...
The object of the study is lignite. Analytical testing techniques, such as elemental analysis, 13C nuclear magnetic resonance (13C NMR) spectroscopy, Fourier transform infrared spectroscopy (FTIR), X-ray photoelectron (XPS), and high-resolution transmission electron microscopy (HRTEM), were used to acquire information on structural parameters aromaticity Xianfeng lignite 43.57%, aromatic carbon structure mainly naphthalene anthracene/phenanthrene. aliphatic dominated by cycloalkanes, alkyl...
To lower the launch cost and prolong lifetime of a deep space explorer, solar- astrophysicists photonics scientists have devoted much time energy in exploring developing compact low-power-consumption semiconductor-based vacuum ultraviolet (VUV) photodetector. However, target has not yet been achieved due to lack high external quantum efficiency (EQE) VUV photoconductive materials. Here, we found that two-dimensional MgO, obtained via conformal anneal synthesis method, had ultrasensitive...
Millimeter-sized Cs4PbBr6 bulk single crystal that has no green luminescence was successfully grown from concentrated CsBr aqueous solution for the first time. Absorption spectrum indicates an optical absorption starting 3.6 eV and a localized in range of 3.8–4.2 eV. Photoluminescence clearly shows emission. Along with calculated electronic band structure, it is concluded wide bandgap Through vacuum annealing treatment, original nongreen-luminescent activated, which possibly due to formation...
The temperature dependence of self-trapped exciton (STE) emission and the optical absorption edge monoclinic gallium oxide (β-Ga2O3) has been carefully studied. According to this research, it is found that as increases (from 10 300 K), STE direct bandgap β-Ga2O3 exhibit a huge broadening (∼120 meV) significant red shift (∼250 meV), respectively. Combined with theoretical analysis, these temperature-dependent change trends are related strong electron-phonon coupling (EPC) effect in crystal,...
Abstract Phosphorescence is a fascinating photoelectronic phenomenon usually observed in rare-earth-doped inorganic crystals and organic molecular crystals, owning great potential optical information storage, color display biological dosimetry. Here, we present an ultralong intrinsic phosphorescence (>20,000 seconds) AlN single-crystal scintillator through X-ray excitation. We suggest that the long afterglow emission originates from intra-band transition related to native nitrogen...