Gel-incorporated PbS and PbI_2 single-crystals  

作　　者：Wei Liu Yu-Jing Liu Liao Chen Tao Ye Hong-Zheng Chen Han-Ying Li 

机构地区：[1]MOE Key Laboratory of Macromolecular Synthesis and Functionalization,State Key Laboratory of Silicon Materials,Department of Polymer Science and Engineering,Zhejiang University

出　　处：《Chinese Chemical Letters》2015年第5期504-508,共5页中国化学快报（英文版）

基　　金：supported by Zhejiang Province Natural Science Foundation(No.LZ13E030002);the 973 Program(No. 2014CB643503);the National Natural Science Foundation of China (Nos.51222302,51373150,51461165301);Fundamental Research Funds for the Central Universities

摘　　要：Gel-incorporated single-crystals provide unique combinational properties of long-range order and composite structures, which is desired for semiconducting and conducting materials. However, the reported gel-incorporated single-crystals are limited to insulating crystals. Here, we examine crystals of two typical semiconductors, lead sulfide （PbS） and lead iodide （Pbl2）, grown from both silica gels and agarose gels. In all the four crystal-gel pairs, single-crystals of the cubic phase of PbS and the hexagonal phase of Phi2 were obtained according to the X-ray diffraction analysis. Dissolution of the gel-grown crystals exposed insoluble materials with the shape similar to the original crystals, indicative of gelincorporation inside the crystals. As such, this work creates a facile strategy to construct 3D heterostructures inside serniconducting single-crystals without destroying their long-range order.Gel-incorporated single-crystals provide unique combinational properties of long-range order and composite structures, which is desired for semiconducting and conducting materials. However, the reported gel-incorporated single-crystals are limited to insulating crystals. Here, we examine crystals of two typical semiconductors, lead sulfide （PbS） and lead iodide （Pbl2）, grown from both silica gels and agarose gels. In all the four crystal-gel pairs, single-crystals of the cubic phase of PbS and the hexagonal phase of Phi2 were obtained according to the X-ray diffraction analysis. Dissolution of the gel-grown crystals exposed insoluble materials with the shape similar to the original crystals, indicative of gelincorporation inside the crystals. As such, this work creates a facile strategy to construct 3D heterostructures inside serniconducting single-crystals without destroying their long-range order.

关 键 词：Single crystals Gel-incorporation Semiconductor PbS Phi2 

分 类 号：O76[理学—晶体学]