Quantum mechanics

Selenide

Metallurgy

Materials science

Thermal conductivity

Thermoelectric cooling

Selenium

Thermoelectric effect

Phonon

Thermoelectric materials

Thermodynamics

Physics

Doping

Charge carrier

Condensed matter physics

Composite material

Electron

Optoelectronics

Engineering physics

Science

SnSe doped a different way Heat can be converted into electricity by thermoelectric materials. Such materials are promising for use in solid-state cooling devices. A challenge for developing efficient thermoelectric materials is to ensure high electrical but low thermal conductivity. Chang et al. found that bromine doping of tin selenide (SnSe) does just this by maintaining low thermal conductivity in the out-of-plane direction of this layered material. The result is a promising n-type thermoelectric material with electrons as the charge carriers—an important step for developing thermoelectric devices from SnSe. Science , this issue p. 778

3D charge and 2D phonon transports leading to high out-of-plane <i>ZT</i> in n-type SnSe crystals

3D charge and 2D phonon transports leading to high out-of-plane ZT in n-type SnSe crystals