Interface Engineering in Solution-Processed Nanocrystal Thin Films for Improved Thermoelectric Performance
Author(s)
Ding, Defang
Wang, Dawei
Zhao, Man
Lv, Jiawei
Jiang, Hong
Lu, Chenguang
Tang, Zhiyong
Griffith University Author(s)
Year published
2017
Metadata
Show full item recordAbstract
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.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.
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Journal Title
Advanced Materials
Volume
29
Issue
1
Subject
Physical sciences
Chemical sciences
Engineering
Materials engineering not elsewhere classified