Thermoelectrics based on strontium titanate

By H. Ohta. 2007

153 citations recorded by the source corpus.

Thermoelectric energy conversion technology is attracting great attention for the conversion of waste heat into electricity. For practical thermoelectric applications, the figure of merit for thermoelectric performance ZT needs to be >1. Although heavy-metal-based materials such as Bi2Te3 and PbTe exhibit ZT ∼ 1, they are not attractive for applications because they are mostly toxic and decomposition, vaporization, or melting of the constituents can easily occur at high temperatures. We review a new class of thermoelectric material based on a metal oxide: a two-dimensional electron gas (2DEG) in SrTiO3. The 2DEG demonstrates a Seebeck coefficient S that is enhanced by a factor of ∼5 compared with the bulk and an optimized ZT that reaches 2.4, twice that of conventional thermoelectric materials.

Subfields: Electrical and Electronic Engineering, Electronic, Optical and Magnetic Materials, Materials Chemistry

View Paper: https://www.semanticscholar.org/paper/87f86096bf2c405eabd569fcbf4ee2f16a6758ad

How researchers see this paper

The researchers whose trusted networks rank it highest, strongest advocate first. Every researcher gets a different order.

In Electrical and Electronic Engineering

1. Kourosh Kalantar-Zadeh
2. Michael S. Strano
3. Gary Rosengarten
4. Serge Zhuiykov

In Electronic, Optical and Magnetic Materials

1. Gary Rosengarten
2. Kristian Sommer Thygesen

In Materials Chemistry

1. Kourosh Kalantar-Zadeh
2. Michael S. Strano
3. Serge Zhuiykov
4. Kristian Sommer Thygesen

Citations in the corpus

• Transition metal oxides – Thermoelectric properties (2013, background): “A number of studies on the TE properties of La and Nb doped STO thin films exist[129] [134] [135].”