Participated in opening up a new field of exploring nonlinear optical crystals from organic-metal complexes, and grew dichlorothiosemicarbazone and cadmium nonlinear optical crystals for the first time. A series of dithiocyanate crystals with large nonlinear optical effects and short ultraviolet cutoff wavelength were synthesized and grown. For the first time, direct frequency-doubled violet light output of a semiconductor laser was obtained in an organic crystal MHBA.
Being the first to conduct research on the growth of mid- and far-infrared LiInS2 crystals in China, the company used the autoclave method to prepare sulfide raw materials for the first time, solving the difficulty of quartz tubes easily bursting during material synthesis, and applied for relevant patents. For the first time in the world, the growth research of BaTeMo2O9 series nonlinear optical crystals with potential application prospects was carried out.
The idea of ??exploring polymer nonlinear optical materials from molecules with L-type charge transfer was proposed. Through the method of combining extension and corona polarization, it was realized for the first time in organic polymer nonlinear optical materials. The birefringence position is matched.
For the first time, organic metal complex polymer nonlinear optical and electroluminescent composite materials were reported. It opens up a new field of exploring electroluminescent materials from multi-branched polymers and macrocyclic compounds.
After the research results on blue electroluminescent materials and devices were published in JACS, they were reported by Chem. & Eng. News in the United States and Chemistry & Industry in the UK. In addition, DCDDC-like red luminescent materials with high brightness and high luminescence purity have been developed.
For the first time, indole [3, 2-b] carbazole derivatives were used as luminescent materials to produce high-efficiency organic electroluminescent devices; a variety of new compounds with aggregated fluorescence enhancement properties were designed and synthesized. A systematic theoretical study was conducted and the mechanism by which fluorenone compounds easily form exciplexes in solution was proposed. It basically solves a series of technical problems encountered in the growth of large-sized and high-quality Nd:GGG crystals, and solves the component volatilization, strong liquid flow effect and interface flipping encountered when growing large-sized Nd:GGG single crystals by the Czochralski method. , spiral growth, hollow growth and crystal cracking and other outstanding problems, we were the first in China to obtain a 5-inch high-quality single crystal, and tested the basic performance of the crystal, and obtained a single-chip average heat capacity laser output of 1562 watts.
Cultivated 16 doctoral students, 6 of whom have graduated, 14 master’s students, of whom 2 have graduated, 1 postdoctoral fellow, and 3 postdoctoral fellows. As an academic leader, he was awarded the Innovation Team of the Ministry of Education and one each from the National Foundation for Innovation Research Group.
Published more than 150 academic papers, which were cited more than 800 times. He has won the first prize of the Science and Technology Progress Award of the Ministry of Education, the first prize of the Shandong Province Science and Technology Progress Award, and the Outstanding Report Award of the Japan Materials Society.
It has obtained 4 Chinese invention patents and 3 Japanese patents, and several invention patents are under review.
Projects undertaken in the past five years
2003 National Fund for Distinguished Young Scholars (Project No.: 50325311, 2004.1-2007.12);
National Natural Science Fund Project "Development of high carrier mobility organic-metal complexes and organic-inorganic composite semiconductor materials" (Project No.: 50323006, 2004.1-2006.12);
National Large-Scale Basic Research Project (973) "Optoelectronics Functional crystal structure properties, molecular design, microstructure design and preparation process" neutron project "Design and assembly of organic-semi-organic nonlinear optical materials with strong two-photon absorption" (Project number: G1998061402, 1998-2003). "Research on the Growth and Preparation of Intraocular Lenses with Major Application Prospects" (Project No.: G2004CB619002, 2004-2008).
National Natural Science Foundation of China major project "Research on low-symmetry sulfur indium lithium series mid-far infrared nonlinear optical crystals" (Project number: 50590403, 2004.1-2008.12)