Optoelectronic Properties and Device Applications

By combining bandgap engineering and optoelectronic response characteristics of different two-dimensional (2D) materials,
we construct multifunctional van der Waals heterostructure systems and systematically investigate their novel optoelectronic physical mechanisms.
This research further explores the application potential of such heterostructures in high-performance optoelectronic devices and quantum information devices.

1. Optoelectronic Properties and Fundamental Mechanisms

• Carrier generation, transfer, and recombination dynamics in two-dimensional van der Waals heterostructures
• Effects of interlayer coupling and interface states on optoelectronic response and energy conversion efficiency

2. Photodetectors and Imaging Devices

• Development of high-sensitivity two-dimensional material-based photodetectors with broadband spectral coverage
  (visible–infrared–ultraviolet)
• Construction of highly integrated on-chip multiband imaging chips based on two-dimensional materials,
  enabling co-integration with silicon-based platforms

3. Quantum Light Sources and Single-Photon Devices

• Investigation of defect formation mechanisms in two-dimensional materials and their single-photon emission properties
• Realization of deep-ultraviolet single-photon source devices based on hexagonal boron nitride (h-BN)
  and exploration of their on-chip integration
• Advancement of on-chip integration and application of two-dimensional quantum light sources