Relaxor Ferroelectric Physics
弛豫铁电体物理
Real part and imaginary part of dielectric permittivities in three regions of a relaxor ferroelectric withTc1= 180, andTc2= 220 forωτ= 0.05, 0.50, 0.75,and 1.2. Region II: the lines represent the relaxor state; Region I: the thick lines represent the ferroelectric state; Region III: the red thick line represents the paraelectric state, and the dashed line represents prolonged lines of the relaxor state.
Colloidal quantum dots
胶质量子点
Colloidal quantum dots (CQDs) including perovskite nanocrystals (PeNCs) are attractive in various optoelectronic applications such as light-emitting diodes (LEDs), photodetectors (PDs), transistors and photovoltaics (PVs). We interest in not only the photo-physics mechanism of CQDs but also the potential optoelectronic applications of the materials. In the Lab, we mainly focus on the design/fabrication of novel CQDs and maintain good collaborations with SUSTech (Shenzhen) and HUST (Wuhan) towards advanced devices based on CQDs.
2D Materials and Related Devices
二维材料及其器件
2D materials have attracted extensive interest due to their excellent properties such as high mobility, high conductivity, and high mechanical strength and long spin diffusion length for spintronics devices. Many kinds of research have focused on 2D materials with pure form. However, doping in 2D materials have been paid more and more attention because novel properties can be achieved by doping, such as possessing both semiconductor and spin behavior, achieving high sensitivity as well as high power harvest efficiency.
Nanophotonics and Chiral Plasmonics
纳米光子学和手性等离子体
Chirality refers to a structure lack of symmetry elements (Sn), such as mirror plane (σ) and inversion (i) symmetry, like most of the chiral organic molecules in which chiral centers are surrounded by four different bonding groups. Recently, the concept of chirality has extended from organic molecules to inorganic nanocrystals (NCs) whose unique physical and chemical properties could be easily tuned by altering their size, shape, or ingredient, providing a powerful platform for exploring enhanced chiroptical effects, chirogenesis and potentials in which chiral inorganic NCs could provide to interdisciplinary fields such as optical and biosensing, chiral bio-imaging and polarization-based display devices.