Manipulating Band Structure through Reconstruction of Binary Metal Sulfide for High‐Performance Thermoelectrics in Solution‐Synthesized Nanostructured Bi13S18I2
Abstract
Reconstructing canonical binary compounds by inserting a third agent can significantly modify their electronic and phonon structures. Therefore, it has inspired the semiconductor communities in various fields. Introducing this paradigm will potentially revolutionize thermoelectrics as well. Using a solution synthesis, Bi2S3 was rebuilt by adding disordered Bi and weakly bonded I. These new structural motifs and the altered crystal symmetry induce prominent changes in electrical and thermal transport, resulting in a great enhancement of the figure of merit. The as‐obtained nanostructured Bi13S18I2 is the first non‐toxic, cost‐efficient, and solution‐processable n‐type material with z T=1.0.
Document Details
- Document Type
- Pub Defense Publication
- Publication Date
- Feb 05, 2018
- Source ID
- 10.1002/anie.201713223
Entities
People
- Biao Xu
- G. Jeffery Snyder
- Je‐hyeong Bahk
- Kazuki Imasato
- Lin Zhou
- Matthias T Agne
- Qing Tan
- Tianli Feng
- Xiulin Ruan
- Yue Wu
- Zhe Li
Organizations
- Ames National Laboratory
- Defense Advanced Research Projects Agency
- Iowa State University
- Nanjing University of Science and Technology
- Northwestern University
- Purdue University
- United States Department of Energy
- University of Cincinnati
- University of Science and Technology Beijing