A5073300201- Luminescence Properties of Advanced Materials
- Perovskite Materials and Applications
- Radiation Detection and Scintillator Technologies
- Metal and Thin Film Mechanics
- Acoustic Wave Resonator Technologies
- GaN-based semiconductor devices and materials
- Ga2O3 and related materials
Shaanxi Normal University
2023-2025
University of Strathclyde
2012
Peking University
2012
State Key Laboratory of Artificial Microstructure and Mesoscopic Physics
2012
Preliminary theoretical analyses indicate that lattice relaxation may be used to release strain in the FAPbI 3 perovskite warrant both high x-ray detection performance and improved stability. Herein, we demonstrate stable black α-phase single crystals (SCs) realized by engineering via annealing ambient atmosphere. The engineered α-FAPbI SC detector shows almost all best figures of merit including a sensitivity 4.15 × 10 5 μC Gy air −1 cm −2 , low limit 1.1 nGy s resolution 15.9 lp mm short...
Abstract 3D metal halide perovskite X‐ray detectors have become the focus of research in recent years due to their superior sensitivity. However, reported efficient all contain highly toxic lead and worrisome stability, which greatly limits wide application promotion. In this study, a distorted germanium MAGeI 3 single crystal (SC) is designed grown by gradient cooling method. Due its octahedral structure, SCs not only possess high sensitivity but also long‐term working stability....
Abstract Metal halide perovskites have been demonstrated to be the promising X‐ray detection materials, among which MAPbI 3 is expected for high‐performance large‐area detector integration due its strong absorption and solution processible at low temperature industrial‐grade large‐size single crystal (SC). However, commercial viability of SC detectors remains challenging poor intrinsic stability, large dark current, significant ion migration. Herein, inorganic Cs + ions are designed...
Abstract Metal‐halide perovskite single crystals (SCs) are promising candidates for next‐generation X‐ray detectors. detectors fabricated using FAPbI 3 SCs exhibit high detection sensitivity. However, two pressing issues still need to be addressed practical applications: the orientation‐controlled growth and environmentally friendly acquisition of high‐quality SCs. In this study, large SC rods (SCRs) with unique orientation grown a biomass‐derived green solvent. Owing carrier mobility bulk...
A size-dependent strain relaxation and its effects on the optical properties of InGaN/GaN multiple quantum wells (QWs) in micro-pillars have been investigated through a combination high spatial resolution cathodoluminescence (CL) hyperspectral imaging numerical modeling. The pillars diameters (d) ranging from 2 to 150 μm were fabricated III-nitride light-emitting diode (LED) structure optimized for yellow-green emission at ∼560 nm. CL mapping enables us investigate these sub-micron scale...