Thermoelectric properties of n-type PbSe revisited
- ORNL
- Boston College, Chestnut Hill
- Xihua University
It was recently predicted \cite{parker} and experimentally confirmed \cite{sny_PbSe} that $$p$$-type PbSe would be a good thermoelectric material. Recent experimental work \cite{pers2} now suggests that $$n$$-type PbSe can also be a good thermoelectric material. We now re-examine the thermoelectric performance of PbSe with a revised approximation which improves band gap accuracy. We now find that $$n$$-type PbSe {\it can} be a high performance material, with thermopowers as high in magnitude as 250 $$\mu$V/K at 1000 K and 300 $$\mu$$V/K at 800 K. Optimal 1000 K $$n$$-type doping ranges are between 2 $$\times 10^{19}$$cm$$^{-3}$$ and 8 $$\times 10^{19}$$cm$$^{-3}$$, while at 800 K the corresponding range is from 7 $$\times$$10$$^{18}$$ to 4 $$\times $$10$$^{19}$$ cm$$^{-3}$$.
- Research Organization:
- Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
- Sponsoring Organization:
- USDOE Office of Energy Efficiency and Renewable Energy (EERE); USDOE Office of Science (SC)
- DOE Contract Number:
- DE-AC05-00OR22725
- OSTI ID:
- 1049806
- Journal Information:
- 2012 American Institute of Physics, Vol. 111, Issue 12; ISSN 0021-8979
- Country of Publication:
- United States
- Language:
- English
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