Infinite coordination polymer for enhancing the thermoelectric performance of Bi0.5Sb1.5Te3for low-grade waste heat recovery
- Resource Type
- Article
- Authors
- Wang, Xiaodong; He, Huolun; Yin, Li; Cheng, Jinxuan; Sui, Jiehe; Liu, Xingjun; Mao, Jun; Cao, Feng; Zhang, Qian
- Source
- Materials Today Energy; June 2022, Vol. 26 Issue: 1
- Subject
- Language
- ISSN
- 24686069
Cu-based infinite coordination polymer nanosheets were synthesized to promote the thermoelectric performance of Bi0.5Sb1.5Te3for low-grade waste heat recovery. The diffusion of Cu into the Bi0.5Sb1.5Te3lattice increased the carrier concentration and depressed the bipolar effect. A dramatically reduced lattice thermal conductivity was obtained due to the inclusion of multiple scales scattering centers. As a result, the average zTacross the temperature range of 300 ∼ 523 K reached ∼1.08. Eventually, the single-leg device based on Bi0.5Sb1.5Te3/CuHT5-365 realized an energy conversion efficiency of ∼7% at the temperature difference of 200 K.