journal article·2021-09-06Open access

Annealing Induced Saturation in Electron Concentration for V-Doped CdO

Yajie Li, Guibin Chen, Kinman Yu, Wladyslaw Walukiewicz, Weiping Gong

Crystals· Volume 11· Issue 9

Abstract

As-grown Ar-deposited Cd1−xVxO and Ar/O2-deposited Cd1−yVyO feature lower and higher electron concentrations than 4 × 1020 cm−3, respectively. After isothermal and isochronal annealing under N2 ambient, we find that the two series exhibit a decrease or increase in electron concentrations until ~4 × 1020 cm−3 which is close to Fermi stabilization energy (EFS) level of CdO, with the assistance of native defects. An amphoteric defects model is used to explain the changing trends in electron concentrations. The tendencies in mobility further confirm our results. This work may provide some strategies to predict the electrical properties in CdO.
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Research context

OpenAlex topics: ZnO doping and properties · Copper-based nanomaterials and applications · Electronic and Structural Properties of Oxides

SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.

Affiliations

Guangdong Provincial Key Laboratory of Electronic Functional Materials and Devices, Huizhou University, Huizhou 516007, China

Materials Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, CA 94720, USA

Physics Department and Jiangsu Key Laboratory for Chemistry of Low Dimensional Materials, Huaiyin Normal University, Huaian 223001, China

Department of Physics, City University of Hong Kong, Kowloon Tong, Hong Kong 999077, China

Department of Materials Science and Engineering, University of California, Berkeley, CA 94720, USA

References (23)

Show source-provided references
1. Improved characte ristics of sprayed CdO films by rapid thermal annealing10.1007/s10854-009-9855-x ↗
2. Influence of vacuum and Ar/CdS atmospheres-rapid thermal annealing (RTA) on the properties of Cd2SnO4 thin films obtained by sol-gel technique10.1016/j.mssp.2016.09.017 ↗
3. Fe-embedded Au (111) monolayer as an electrocatalyst for N2 reduction reaction: A first-principles investigation10.1016/j.jallcom.2018.10.288 ↗
4. CdCO3 nanocrystalline thin film grown by chemical bath and its transition to porous CdO by thermal annealing treatment10.1016/j.ijleo.2018.06.068 ↗
5. Defects and properties of cadmium oxide based transparent conductors10.1063/1.4948236 ↗
6. Ideal transparent conductors for full spectrum photovoltaics10.1063/1.4729563 ↗
7. Current underestimation of the optical gap and Bursterin-Moss shift in CdO thin films: A consequence of extended misuse of α2-versus-hν plots10.1063/1.3651338 ↗
8. Conduction band modifications by d states in vanadium doped CdO10.1016/j.jallcom.2019.153567 ↗
9. Effect of rapid thermal annealing on Zn1−xCdxO layers grown by radio-frequency magnetron co-sputtering10.1002/crat.201000248 ↗
10. Radio frequency magnetron sputtered CdO thin films for optoelectronic applications10.1016/j.jpcs.2018.10.031 ↗
11. Wide range tuning of electrical conductivity of RF sputtered CdO thin films through oxygen partial pressure variation10.1016/j.solmat.2008.03.024 ↗
12. Influence of radiofrequency power on structural, morphological, optical and electrical properties of magnetron sputtered CdO: Sm thin films as alternative TCO for optoelectronic applications10.1016/j.jallcom.2018.06.215 ↗
13. Influence of rapid thermal annealing (RTA) on the structural and electrical properties of SnS films10.1007/s10854-008-9838-3 ↗
14. Effects of annealing treatment and partial substitution of Cu for Co on phase composition and hydrogen storage performance of La0.7Mg0.3Ni3.2Co0.35 alloy10.1016/j.ijhydene.2011.02.089 ↗
15. Determination of the V2p XPS binding energies for different vanadium oxidation states (V5+ to V0+)10.1016/j.elspec.2004.03.004 ↗
16. n-Butane dehydrogenation over vanadium carbides: Correlating catalytic and electronic properties10.1006/jcat.1999.2749 ↗
17. Amphoteric native defects in semiconductors10.1063/1.101174 ↗
18. Unification of the electrical behavior of defects, impurities, and surface states in semiconductors: Virtual gap states in CdO10.1103/PhysRevB.79.035203 ↗
19. Transition-metal impurities in semiconductors and heterojunction band lineups10.1103/PhysRevB.38.7723 ↗
20. Sources of conductivity and doping limits in CdO from hybrid density functional theory10.1021/ja204639y ↗
21. Fermi level stabilization energy in cadmium oxide10.1063/1.3428444 ↗
22. Temperature transients in heavily doped and undoped silicon using rapid thermal annealing10.1063/1.334532 ↗
23. The development of the Arrhenius equation10.1021/ed061p494 ↗