Abstract
A new type of high performance thermoelectric material Cu2-xS composed of non-toxic and earth-abundant elements Cu and S is reported. Cu 2-xS surprisingly has lower thermal conductivity and more strikingly reduced specific heat compared to the heavier Cu2Se, leading to an increased zT to 1.7.
Original language | English (US) |
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Pages (from-to) | 3974-3978 |
Number of pages | 5 |
Journal | Advanced Materials |
Volume | 26 |
Issue number | 23 |
DOIs | |
State | Published - Jun 18 2014 |
Keywords
- copper sulfide
- earth-abundant
- non-toxic
- phonon-liquid electron-crystal
- thermoelectric
ASJC Scopus subject areas
- Mechanics of Materials
- Mechanical Engineering
- General Materials Science