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Twisted magnetic topological insulator: When momentum-space topology meets real-space topology?
Prof. G. Chen's research
Prof. G. Chen's research

Publications

S.J. Xu

*The list contains only the publications affiliating HKU (Physics) since 2007 or since the author joined HKU (sorted by publication year and the name of the Journal).


  • 1 Strong coupling between longitudinal and U-shaped localized surface plasmon modes in rectangular grating-shaped gold nanostructures
    X.R. Wang, S.J. Xu
    Journal of Nanophotonics, Vol.17(1), 016010:1-11, 2023
  • 2 Analytic S-Shaped Temperature Dependence of Peak Positions of the Localized-State Ensemble Luminescence and Application in the Analysis of Luminescence in Non- and Semi-Polar InGaN/GaN Quantum-Wells Micro-Array
    X.R. Wang, S.J. Xu
    Chinese Physics Letters, Vol.39(10), 107801:1-5, 2022
  • 3 Unveiling the phonon effect on the narrow-band deep-red emission from solution-combustion synthesized Mn4+ doped CaYAlO4 microcrystals
    Z.H. Tian, B.C. Liu, Y. Xiao, Z.H. Wang, L.Z. Zhang, S.J. Xu, H.G. Ye, K.Z. Tian, X.M. Nie, F. Tang
    Journal of Alloys and Compounds, Vol.923, 166280:1-11, 2022
  • 4 Large Negative Thermal Quenching and Broadening Lineshape Analysis of Acceptor-Associated Yellow Luminescence in Si-Doped GaN
    X.R. Wang, D.G. Zhao, J.Q. Ning, D.P. Yu, S.J. Xu
    The Journal of Physical Chemistry C, Vol.126(48), 20686-20693, 2022
  • 5 Sub-bandgap refractive indexes and optical properties of Si-doped β-Ga2O3 semiconductor thin films
    Y.T. Bao, X.R. Wang, S.J. Xu
    Journal of Semiconductors, Vol.43(6), 062802:1-5, 2022
  • 6 Suppression of Surface Defects and Vibrational Coupling in GaN by a Graphene Monolayer
    C.C. Zheng, J.Q. Ning, H.G. Ye, L.X. Zhang, K. Xu, D.G. Zhao, Z.H. Ni, J.N. Wang, S.J. Xu
    Physica Status Solidi (RRL), Vol.16(2), 2100489:1-7, 2022
  • 7 Large negative thermal quenching of yellow luminescence in non-polar InGaN/GaN quantum wells
    X.R. Wang, T. Wang, D.P. Yu, S.J. Xu
    Journal of Applied Physics, Vol.130(20), 205704:1-6, 2021
  • 8 Thermal behaviors of the sharp zero–phonon luminescence lines of NV center in diamond
    Y.T. Bao, S.J. Xu, Z.Y. Ren, Z.C. Su, J.F. Zhang, J.C. Zhang, Y. Hao
    Journal of Luminescence, Vol.236, 118081:1-5, 2021
  • 9 Variable-period oscillations in optical spectra in sub-bandgap long wavelength region: signatures of new dispersion of refractive index?
    Y.T. Bao, S.J. Xu
    Journal of Physics D: Applied Physics, Vol.54(15), 155102:1-8, 2021
  • 10 Luminescence performance and vibronic behavior of Mn4+-activated Ca14−xKxAl10Zn6O35 deep-red phosphor
    L.Z. Zhang, Y. Yang, F. Tang, S.J. Xu, Z.H. Wang, C.C. Zheng, J.Q. Ning, K.Z. Tian
    Optics Letters, Vol.46(23), 5938-5941, 2021
  • 11 Luminescence Characteristics and Vibronic Coupling Behavior of a Highly Efficient Eu2+-Activated RbLi7Si2O8 Green Phosphor for Wide Color Gamut WLEDs
    F. Tang, H.Q. Li, K.Z. Tian, S.J. Xu, X.J. Wang, C.H. Xie, H.G. Ye, Y.G. Cao
    ACS Applied Electronic Materials, Vol.2(11), 3749-3755, 2020
  • 12 Stable, High-Effciency Voltage-Dependent Color-Tunable Organic Light-Emitting Diodes with a Single Tetradentate Platinum(II) Emitter Having Long Operational Lifetime
    M. Mao, T.L. Lam, W.P. To, X.Z. Lao, W.Q. Liu, S.J. Xu, G. Cheng, C.M. Che
    Advanced Materials, Vol.-, 2004873:1-8, 2020
  • 13 The role of luminescence self-absorption in photocatalytic properties of self-assembled ZnS nanocrystals
    J. Zhang, L. Yang, Y. Cui, Y.L. Tang, J.Y. Xu, Z.C. Su, X.Z. Lao, Y.T. Bao, X.R. Wang, S.J. Xu
    AIP Advances, Vol.10, 105314-1-105314-5, 2020
  • 14 The key roles of 4f-level splitting and vibronic coupling in the high-efficiency luminescence of Ce 3+ion in LuAG transparent ceramic phosphors
    F. Tang, Z.C. Su, Y.T. Bao, D.L. Zhu, S.J. Xu, X.Z. Lao
    Journal of Luminescence, Vol.225, 1-5, 2020
  • 15 Photoluminescence and Raman Scattering Signatures of Anisotropic Optical Properties in Freestanding m‑, a- and c‑Plane GaN Substrates
    M.Z. Wang, K. Xu, S.J. Xu
    The Journal of Physical Chemistry C, Vol.124, 18203-18208, 2020
  • 16 Local Phonon Modes Concerned with the Self-Trapped Exciton State in CsPbBr3 Nanocrystals
    X.M. Ma, P. Shen, Y.N. Wang, F. Pan, G.D. Chen, S.J. Xu, H.G. Ye
    The Journal of Physical Chemistry C, Vol.124(49), 27130-27135, 2020
  • 17 Photoluminescence signatures of thermal expansion, electron–phonon coupling and phase transitions in cesium lead bromide perovskite nanosheets
    X.Z. Lao, S.J. Xu, W. Zhou, Y.T. Bao, X.R. Wang, Z. Yang, M.Q. Wang
    Nanoscale, Vol.12(13), 7315-7320, 2020
  • 18 Determination of absorption coefficients and Urbach tail depth of ZnO below the bandgap with two-photon photoluminescence
    X.R. Wang, D.P. Yu, S.J. Xu
    Optics Express, Vol.28(9), 13817-13825, 2020
  • 19 Impact of excitation energy on the excitonic luminescence of cesium lead bromide perovskite nanosheets
    X.Z. Lao, Y.T. Bao, S.J. Xu
    Optics Letters, Vol.45(14), 3881-3884, 2020
  • 20 Steady-state and time-resolved upconversion photoluminescence in Yb3+-Er3+ co-doped transparent ceramics of YAG
    F. Tang, H.Q. Li, K.Z. Tian, J.Q. Ning, H.G. Ye, S.J. Xu
    Optics Letters, Vol.45(20), 5712-5715, 2020
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