Research in the design, growth and properties of organic semiconductor crystals, two-dimensional semiconductor crystals and organic-inorganic hybrid crystals. More than 50 SCI papers have been published in international journals such as Angew. Chem. Int. Ed., Adv. Mater., etc.. 17 articles are first or coressponding author. Total citation more than 1400 times (up to 2020-08).