Abstract
Using first-principles total energy calculations, we have studied self-doping in the ternary transparent conducting oxide, Cd2SnO4. Formation of the CdO and SnO2 binaries limits the inverse spinel Cd2SnO4 phase into a narrow region in the atomic chemical potential (μ) space. This suggests that μSn is not independent of μCd, so a Cd-rich growth or annealing condition also implies Sn-rich, and vice versa. We found that the widely accepted intrinsic donors such as oxygen vacancy and cadmium interstitial are not responsible for the observed conductivity in Cd2SnO4: both require too much energy to form. In addition, the oxygen vacancy is rather deep. We show instead that the Sn-on-Cd antisite defect is the most probable donor responsible for the n typeness under Cd-rich conditions.
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Dates
Type | When |
---|---|
Created | 23 years ago (July 26, 2002, 9:26 a.m.) |
Deposited | 1 year, 6 months ago (Feb. 3, 2024, 4:48 p.m.) |
Indexed | 4 months, 2 weeks ago (April 8, 2025, 6:04 p.m.) |
Issued | 23 years, 5 months ago (Feb. 25, 2002) |
Published | 23 years, 5 months ago (Feb. 25, 2002) |
Published Print | 23 years, 5 months ago (Feb. 25, 2002) |
@article{Zhang_2002, title={Self-doping of cadmium stannate in the inverse spinel structure}, volume={80}, ISSN={1077-3118}, url={http://dx.doi.org/10.1063/1.1452789}, DOI={10.1063/1.1452789}, number={8}, journal={Applied Physics Letters}, publisher={AIP Publishing}, author={Zhang, S. B. and Wei, Su-Huai}, year={2002}, month=feb, pages={1376–1378} }