Solvent Thermal Method to control Lead Sulfi de Nano/Micron Crystal and Its Ni/PbS Composites  

作　　者：Yajia Ding Bing Bai Jianan Peng 

机构地区：[1]Key Laboratory of Nanometer Materials, University of Architecture and Technology, Fujian, China

出　　处：《Characterization and Application of Nanomaterials》2018年第1期30-39,共10页纳米科学的表征与应用

摘　　要：Lead sulfide (PbS) is an important IV-VI semiconductor material with narrow bandwidth and wide wave width, which attracts people's attention. Nano-level PbS has many novel optoelectronic properties and has a wide range of applications in the fi eld of optoelectronics, such as infrared optoelectronic devices, photovoltaic devices, light-emitting devices and display devices. In this paper, Pbs is produced by solvent thermal method by using lead acetate as lead source, sulfur power as sulfur source, ethylene glycol as solvent, and acetic acid to provide acidic environment. The reaction acidity, type of lead source, amount of sulfur source and other aspects will be explored. The products obtained under diff erent conditions were characterized by X-ray diff raction (XRD), optical microscopy and scanning electron microscopy (SEM). The results showed that PbS produced at 140°C for 24 hours, using 14mL ethylene glycol and 1.2mL acetic acid has the best morphology. It has a non-planar six-arm symmetrical structure. Finally, we prepare the lead sulfi de composite Ni/PbS, and characterized it.

关 键 词：PBS SOLVENT heat NANOMATERIALS COMPOSITES 

分 类 号：O[理学]