Adv. func. Mater.: Luo Junhua and sun Zhihua of Fujian Institute of physical composition have made new progress in the research of non lead perovskite photoelectric detection crystal materials

In recent years, due to its high absorption coefficient, long carrier mobility and high carrier mobility, lead based halide perovskite single crystals show excellent photoelectric properties However, the lead toxicity of lead-based perovskite materials has seriously restricted its development The development of non lead perovskite crystal materials and the assembly of optoelectronic functional devices has become an urgent research field Non lead perovskite crystal (source: adv.func Mater.) researcher Luo Junhua, research team of "inorganic optoelectronic functional crystal material research" in the State Key Laboratory of structural chemistry, Fujian Institute of architecture, Chinese Academy of Sciences Under the support of NSFC excellent youth fund, Haixi Research Institute of Chinese Academy of Sciences "spring seedling talents" project and Fujian Provincial Outstanding Youth Fund, the non lead inch grade high-quality single crystal was successfully prepared The perovskite single crystal material has a wide absorption range, few defect density of state and high carrier mobility At the same time, the plane array photodetector made of the single crystal material has good detection performance, which can realize high sensitivity and fast detection of the light radiation in the intrinsic absorption region of the crystal As a potential hybrid semiconductor material, it will further expand the application of lead-free inorganic / organic hybrid perovskite materials in solar cells, photoelectric detection and other aspects The relevant research results were recently published in adv func Mater (DOI: 10.1002 / ADFM 201705467) Previously, the team has made a series of progress in the related molecular based phase transition, the structural design of ferroelectric compounds, performance regulation and the research of optoelectronic devices Corresponding author: researcher Luo Junhua, researcher sun Zhihua