High thermoelectric performance in low-cost SnS 0.91 Se 0.09 crystals

著者: Wenke He, Dongyang Wang, Haijun Wu, Yu Xiao, Yang Zhang, Dongsheng He, Yue Feng, Yu‐Jie Hao, Jinfeng Dong, Raju Chetty, Lijie Hao, Dongfeng Chen, Jianfei Qin, Qiang Yang, Xin Li, Song Jianming, Yingcai Zhu, Wei Xu, Changlei Niu, Xin Li, Guangtao Wang, Chang Liu, M. Ohta, Stephen J. Pennycook, Jiaqing He, Jing‐Feng Li, Li‐Dong Zhao - Science 2019 被引用: 607

Lower-cost thermoelectrics Thermoelectric materials convert heat to electricity, making them attractive for heat harvesting or cooling applications. However, many high-performance thermoelectrics are made of expensive or toxic materials. He et al. found that a material composed of primarily tin and sulfur could be optimized to have relatively good thermoelectric properties. Introducing about 10% selenium to tin sulfide helped tune these properties by electronic band manipulation. This material is a step toward more earth-abundant, less toxic, and lower-cost thermoelectrics than the telluride-based materials currently in use. Science , this issue p. 1418