94 citations · 580 across the 19 of their papers we have counts for
12 papers · 1 filter
Large photoluminescence enhancement by an out-of-plane magnetic field in exfoliated WS flakes
Sibai Sun, Jianchen Dang, Xin Xie +11
We report an out-of-plane magnetic field induced large photoluminescence enhancement in WS flakes at K, in contrast to the photoluminescence enhancement provided by in-pl…
Electron and hole g tensors of neutral and charged excitons in single quantum dots by high-resolution photocurrent spectroscopy
Shiyao Wu, Kai Peng, Xin Xie +11
We report a high-resolution photocurrent (PC) spectroscopy of a single self-assembled InAs/GaAs quantum dot (QD) embedded in an n-i-Schottky device with an applied vector magnetic…
Cavity Quantum Electrodynamics with Second-Order Topological Corner State
Xin Xie, Weixuan Zhang, Xiaowu He +11
Topological photonics provides a new paradigm in studying cavity quantum electrodynamics with robustness to disorder. In this work, we demonstrate the coupling between single quant…
Identifying defect-related quantum emitters in monolayer WSe
Jianchen Dang, Sibai Sun, Xin Xie +12
Monolayer transition metal dichalcogenides have recently attracted great interests because the quantum dots embedded in monolayer can serve as optically active single photon emitte…
Hot Polarons with Trapped Excitons and Octahedra-Twist Phonons in CH3NH3PbBr3 Hybrid Perovskite Nanowires
Feilong Song, Chenjiang Qian, Yunuan Wang +13
Hybrid Perovskites have shown a great potential for applications in photovoltaics and light-emitting devices with high efficiency. Interaction between defect-induced trapped excito…
Anisotropies of the g-factor tensor and diamagnetic coefficient in crystal-phase quantum dots in InP nanowires
Shiyao Wu, Kai Peng, Sergio Battiato +17
Crystal-phase low-dimensional structures offer great potential for the implementation of photonic devices of interest for quantum information processing. In this context, unveiling…
Many-Body Effect of Mesoscopic Localized States in MoS Monolayer
Yang Yu, Jianchen Dang, Chenjiang Qian +13
Transition metal dichalcogenide monolayers provide an emerging material system to implement quantum photonics with intrinsic two-dimensional excitons or embedded zero-dimensional l…
Large g factor in bilayer WS flakes
Sibai Sun, Yang Yu, Jianchen Dang +15
The valley of transition metal dichalcogenides provides an additional platform to manipulate spin due to its unique selection rule. Normally, intralayer optical transitions in magn…
Tuning the carrier tunneling in a single quantum dot with a magnetic field in Faraday geometry
Kai Peng, Shiyao Wu, Xin Xie +8
We report on an increase in the carrier tunneling time in a single quantum dot (QD) with a magnetic field in Faraday geometry using photocurrent spectroscopy. A nearly 60\% increas…
Giant Photocurrent Enhancement by Coulomb Interaction in a Single Quantum Dot for Energy Harvesting
Kai Peng, Shiyao Wu, Xin Xie +9
Understanding the carrier excitation and transport processes at the single-charge level plays a key role in quantum-dot-based solar cells and photodetectors. Here, we report on Cou…
High-Responsivity Photodetection by Self-Catalyzed Phase-Pure P-GaAs Nanowire
Hassan Ali, Yunyan Zhang, Jing Tang +13
Defects are detrimental for optoelectronics devices, such as stacking faults can form carrier-transportation barriers, and foreign impurities (Au) with deep-energy levels can form…
Probing the dark exciton states of a single quantum dot using photocurrent spectroscopy in magnetic fields
Kai Peng, Shiyao Wu, Jing Tang +8
We report on high-resolution photoluminescence (PL) and photocurrent (PC) spectroscopies of a single self-assembled InAs/GaAs quantum dot (QD) embedded in an n-i-Schottky device wi…