--- He took part in the research and development on the photo-electrical phenomena and devices in semiconductors from 1962 to 1977. Then He has been involved in II-VI compound semiconductors and space-borne photosensors. He conducted the development of space-borne infrared sensor for FenYun-1 meteorological satellite in China. He put forward the concept of engineering parameter of merit, the Spectral Band Detectivity, of IR sensors made in II-VI compound semiconductors with variable-energy-gap and its measurement method.

　　 He solved the basic problems of technology and engineering issues for several kinds of space-borne infrared sensor in order to realize the remote sensing for wavelength range from 1μm to 15μm, which meet the need of new-type spaceborne remote sensing systems in China. He presented the first module project of multi-spectral infrared focal plane arrays in China and successfully developed them. Based on the works of his R&D group, several kinds of multi-spectral infrared sensor module are operating on Satellites FY-1、FY-2 and Spacecraft SZ-3, and also used for airborne remote sensing system, industry, traffic, environment, medicine.