Harbin Institute of Technology

Lei Yang

Jiaqi Zhu

Kang Liu

Kaili Yao

Yurong He

Zhibo Zhang

Wenxin Cao

Benjian Liu

Jiwen Zhao

Jiecai Han

Tianyu Wang

Ruicong Zhang

Ge Gao

Bing Dai

Zicheng Song

Guoyang Shu

Jiajun Li

Provided is a liquid crystal material applied to a multi-response-mode smart window and an application thereof. The present disclosure relates to a liquid crystal material and an application thereof. The problem of high drive voltage of the liquid crystal smart window based on dynamic scattering mode in the prior arts can be solved. The liquid crystal material applied to the multi-response-mode smart window is formed by mixing a dichroic dye, an ionic dopant and a liquid crystal. It is applied to preparing an electrohydrodynamics liquid crystal dimming device which is capable of switching among transparent state, light-absorbing state and scattering state under a drive voltage of 5V to 50V and a drive frequency of 1 Hz to 5 kHz.

Liquid crystal material applied to multi-response-mode smart window and application thereof

Direct growth methods for preparing diamond-assisted heat-dissipation silicon carbide substrates of GaN-HEMTs are disclosed. In an embodiment, the direct growth method includes the following steps: (1) etching holes in a surface of a silicon carbide substrate to produce a silicon carbide wafer; (2) ultrasonic cleaning the produced silicon carbide wafer; (3) establishing an auxiliary nucleation point on a surface of the silicon carbide wafer; (4) depositing a diamond layer; (5) removing the portion of the diamond layer on the upper surface while retaining the portion of the diamond layer in the holes; (6) ultrasonic cleaning; and (7) depositing diamond in the holes on the silicon carbide wafer until the holes are fully filled.

Direct growth methods for preparing diamond-assisted heat-dissipation silicon carbide substrates of GaN-HEMTs

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Heilongjiang, China

Lei Yang