GaSb doping facilitates conduction band convergence and improves thermoelectric performance in n-type PbS

Author:

Chen Zixuan12,Cui Hong-Hua3,Hao Shiqiang4,Liu Yukun4,Liu Hui5,Zhou Jing1,Yu Yan126,Yan Qingyu78ORCID,Wolverton Christopher4ORCID,Dravid Vinayak P.4ORCID,Luo Zhong-Zhen126ORCID,Zou Zhigang12910,Kanatzidis Mercouri G.11ORCID

Affiliation:

1. Key Laboratory of Eco-materials Advanced Technology, College of Materials Science and Engineering, Fuzhou University, Fuzhou, 350108, China

2. Fujian Science & Technology Innovation Laboratory for Optoelectronic Information of China, Fuzhou, Fujian, 350108, China

3. Mechanical and Electrical Engineering Practice Center, Fuzhou University, Fuzhou, 350108, China

4. Department of Materials Science and Engineering, Northwestern University, Evanston, Illinois, 60208, USA

5. Beijing Advanced Innovation Center for Materials Genome Engineering, University of Science and Technology Beijing, Beijing, 100083, China

6. Key Laboratory of Advanced Materials Technologies, International (HongKong Macao and Taiwan) Joint Laboratory on Advanced Materials Technologies, College of Materials Science and Engineering, Fuzhou University, Fuzhou, Fujian, 350108, China

7. School of Materials Science and Engineering, Nanyang Technological University, 50 Nanyang Avenue, 639798, Singapore

8. Institute of Materials Research and Engineering, A*STAR, 138634, Singapore

9. Eco-materials and Renewable Energy Research Center, College of Engineering and Applied Sciences, Nanjing University, Nanjing, 210093, China

10. National Laboratory of Solid State Microstructures, Nanjing University, Nanjing, 210093, China

11. Department of Chemistry, Northwestern University, Evanston, Illinois, 60208, USA

Abstract

We improve n-type lead chalcogenides by adding GaSb to reduce lattice thermal conductivity and achieve conduction band convergence. This significantly enhances the thermoelectric performance of n-type PbS, making it comparable to its p-type counterpart.

Funder

National Key Research and Development Program of China

U.S. Department of Energy

Office of Science

Basic Energy Sciences

National Natural Science Foundation of China

Natural Science Foundation of Fujian Province

Publisher

Royal Society of Chemistry (RSC)

Subject

Pollution,Nuclear Energy and Engineering,Renewable Energy, Sustainability and the Environment,Environmental Chemistry

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