Work

Effect of Pb Doping on the Thermoelectric Properties of Bi0.48Sb1.52Te3

Year: 2017

Type: article

Abstract: Bi2Te3-based alloys have been intensively investigated as active materials for thermoelectric power generation devices from low-temperature (< 250℃) waste heat. In the present study, we fabricated Pb-doped, p-type Bi0.48Sb1.52Te3 polycrystalline bulks by using meltsolidification and spark plasma sintering techniques, and evaluated their thermoelectric transport properties in an effort to develop optimized composition for low-temperature power generation applications. The electronic and thermal transport properties of Bi0.48Sb1.52Te3 could be manipulated by Pb doping. As a result, the temperature for a peak thermoelectric performance (zT) gradually shifted toward higher temperatures with Pb content, suggesting that thermoelectric power generation efficiency can be enhanced by controlled Pb doping.

Source: Journal of the Korean Institute of Electrical and Electronic Material Engineers

DOI: 10.4313/jkem.2017.30.7.454

Authors: Seung Pil Moon, Tae Wan Kim, Sung Wng Kim, Woo Min Jeon, Jin Heon Kim, Kyu Hyoung Lee

Institutions: Korea Electric Power Corporation (South Korea), Sungkyunkwan University, Kangwon National University

Language: English

Topic: Advanced Thermoelectric Materials and Devices

Subfield: Materials Chemistry

Field: Materials Science

Domain: Physical Sciences

SDG: Affordable and clean energy

Open Access status: diamond

OpenAlex ID: W3119246689