Interface Engineering in Solution-Processed Nanocrystal Thin Films for Improved Thermoelectric Performance
详细信息 查看全文
- 作者：Defang Ding ; Dawei Wang ; Man Zhao ; Jiawei Lv ; Hong Jiang ; Chenguang Lu and Zhiyong Tang
- 刊名：Advanced Materials
- 出版年：2017
- 出版时间：January 4, 2017
- 年：2017
- 卷：29
- 期：1
- 全文大小：1995K
- ISSN：1521-4095
文摘
Solution-processed PbTe nanocrystal (NC) thin films are ligand exchanged by ethylenediamine and then annealed at 400 °C for enhancement of NC coupling. To further improve the performance, heterostructures are introduced into the PbTe/PbS films. Significantly, an optimized ZT of ≈0.30 is successfully achieved at 405 K. This method opens an avenue toward thermoelectric thin film devices with high performance.