期刊
APPLIED PHYSICS LETTERS
卷 105, 期 22, 页码 -出版社
AMER INST PHYSICS
DOI: 10.1063/1.4903538
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资金
- EPSRC
The large work function of MoO3 of 6.6 eV is due to its closed shall character and the dipole layer created by planes of terminal O-1 oxygen sites which lower the electrostatic potential of the inner Mo-O units. These O-1 sites arise from the high stoichiometry of MoO3. The O vacancy is most stable at the 2-fold O-2 site. It is a shallow donor and has a small formation energy in the O poor limit so that MoO3 easily becomes a degenerate semiconductor. (C) 2014 AIP Publishing LLC.
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