Yan QIN (秦言)

PhD. Student @ HKUST

Department of Electronic & Computer Engineering (ECE),
The Hong Kong University of Science and Technology (HKUST)

📮 Email: qinyan_2024 [@] 163 [dot] com |


Biography

Hi! I am Yan Qin (秦言), currently a PhD student at Hong Kong University of Science and Technology, focusing on the behavior of carriers in optoelectronic devices. Currently, using various advanced spectroscopic tools, I focus on studying the exciton physical properties of hybrid organic-inorganic perovskites in terms of electron-phonon interaction, hot carrier cooling, Auger recombination and nonlinear optical properties, aiming to reveal its optical properties and provide important reference information for the development of related optoelectronic devices.

Feel free to contact me by email if you are interested in discussing or collaborating with me.

Education

The Hong Kong University of Science and Technology (HKUST), China

PhD. Student in ECE

Aug. 2024 - Jul. 2028 (expected)

Shenzhen University (SZU), China

B.Sc. in Physics
GPA 90.2 / 100, Ranking 2 / 58
Sep. 2020 - Jun. 2024

Research & Visiting Experience

Advanced Spectroscopy Laboratory, Shenzhen University

Aug.2022 – present, Intern Researcher, Shanghai, China

Working with Dr. Junzi Li

Research content: Low-temperature exciton properties, ultrafast carrier dynamics processes and nonlinear optical properties of perovskites.

Publications

  • A review on the low temperature excitonic properties of all-inorganic perovskite nanocrystals

    • In preparation

    A critical overview on various factors that can affect carrier-phonon coupling, bandgap renormalization and exciton binding energy will be comprehensively discussed, including composition, alloying, morphology and core/shell engineering.

  • Optical properties of hybrid metal halide heterostructure films

    • Published to The Journal of Physical Chemistry C

    Synthesized two hybrid mental halide heterojunction thin films with the R-methylbenzylammonium (R-MBA) and R-1-(1- naphthyl) ethylammonium (R-NEA) as A-site cations.
    Compared the electron-phonon interaction and ultrafast dynamic processes using temperature-dependent photoluminescence and femtosecond-transient-absorption spectroscopy.

  • Rashba effect and spin-dependent excitonic properties in chiral two-dimensional/three-dimensional composite perovskite films

    • Published to The Journal of Physical Chemistry Letters

  • Research progress in spintronics of chiral perovskite materials

    • Published to Chinese Science Bulletin

  • Transparent liquid concentration sensing device based on spiral fiber

    • Published to Physics Experimentation

    Competition Awards (Selected)

    National Undergraduate Physics Experiment Contest:
    Provincial 2nd Prize
    2022, mainly responsible for designing and constructing a helical optical fiber sensor, and overseeing the installation and testing processes

    A liquid mass fraction measuring device based on spiral fiber was designed, where un-coated bare fiber was prepared in the middle of the transmission fiber. In this paper, the influence of radius of curvature and turns on the sensitivity and resolution of the proposed sensor was studied, After the optimization of structural parameters, the results showed that the sensitivity of the designed spiral fibersensor was obtained to be 0, 63 mV/% for NaCl solution detection, and the mass fraction resolutionreached 0.1%, while the detection repeatability also has good performance.

    Honors

  • Star of Innovation and Entrepreneurship, Shenzhen University
  • Star of Learning, Shenzhen University

    • Instrument

  • the UV-visible absorption spectrometer
  • circular dichroism spectrometer
  • femtosecond-transient-absorption spectrum measurement
  • spectrofluorometer FS5
  • temperature-dependent photoluminescence spectrum measurement

    • © Yan Qin