Interaction of oxygen vacancies in yttrium germanates
Literature Information
H. Wang, A. Dimoulas, U. Schwingenschlögl
Forming a good Ge/dielectric interface is important to improve the electron mobility of a Ge metal oxide semiconductor field-effect transistor. A thin yttrium germanate capping layer can improve the properties of the Ge/GeO2 system. We employ electronic structure calculations to investigate the effect of oxygen vacancies in yttrium-doped GeO2 and the yttrium germanates Y2Ge2O7 and Y2GeO5. The calculated densities of states indicate that dangling bonds from oxygen vacancies introduce in-gap states, but the system remains insulating. However, yttrium-doped GeO2 becomes metallic under oxygen deficiency. Y-doped GeO2, Y2Ge2O7 and Y2GeO5 are calculated to be oxygen substoichiometric under low Fermi energy conditions. The use of yttrium germanates is proposed as a way to effectively passivate the Ge/dielectric interface.
Related Literature
Formation dynamics and nature of tryptophan's primary photoproduct in aqueous solution
J. Léonard, D. Sharma, B. Szafarowicz, K. Torgasin, S. Haacke
DOI: 10.1039/C0CP00615G
Fast and ultrafast spectroscopic investigation of tetracycline derivatives in organic and aqueous media
Benedetta Carlotti, Domenico Fuoco, Fausto Elisei
DOI: 10.1039/C0CP00044B
Deformation of liquid-filled calciumalginatecapsules in a spinning drop apparatus
Sabine Leick, Stefan Henning, Patrick Degen, Dieter Suter, Heinz Rehage
DOI: 10.1039/B921116K
Vibrations of a single adsorbed organic molecule: anharmonicity matters!
Y. Scribano, A. Tschetschetkin, N. Maurer, B. Koslowski, P. Ziemann
DOI: 10.1039/C0CP01289K
Complex kinetics, high frequency oscillations and temperature compensation in the electro-oxidation of ethylene glycol on platinum
Elton Sitta, Melke A. Nascimento
DOI: 10.1039/C002574G
Solving the spectroscopic phase: imaging excited wave packets and extracting excited state potentials from fluorescence data
Xuan Li, Cian Menzel-Jones, David Avisar
DOI: 10.1039/C0CP01417F
The interaction of H2O2 with ice surfaces between 203 and 233 K
N. Pouvesle, M. Kippenberger, G. Schuster, J. N. Crowley
DOI: 10.1039/C0CP01656J
Phase behaviour and conductivity study on multi-component mixtures for electrodeposition in supercritical fluids
Philip N. Bartlett, David C. Cook, Michael W. George, Jie Ke, William Levason, Gillian Reid, Wenta Su, Wenjian Zhang
DOI: 10.1039/B918981E
Molecular dynamics simulations of atomically flat and nanoporous electrodes with a molten salt electrolyte
Jenel Vatamanu, Oleg Borodin, Grant D. Smith
DOI: 10.1039/B917592J
You might also like
What are the main uses of 4-Nitrophenyl phosphate disodium salt hexahydrate (CAS: 333338-18-4)?
4-Nitrophenyl phosphate disodium salt hexahydrate is primarily used as a substra...
What are the main uses of 2-(Trifluoromethyl)-1,3-oxazole-4-carboxylic Acid (CAS: 1060816-01-4)?
2-(Trifluoromethyl)-1,3-oxazole-4-carboxylic Acid (CAS: 1060816-01-4) is widely ...
How should 2-Fluoro-4-biphenylcarboxylic acid (CAS: 137045-30-8) be stored?
2-Fluoro-4-biphenylcarboxylic acid should be stored in a cool, dry place at room...
What industries use Prednisolone-21-Carboxylic Acid (CAS: 61549-70-0)?
Prednisolone-21-Carboxylic Acid is primarily used in the pharmaceutical industry...
How should 4-(Hydrazinomethyl)-1,2,3-benzenetriol (CAS: 3614-72-0) be stored?
4-(Hydrazinomethyl)-1,2,3-benzenetriol (CAS: 3614-72-0) should be stored in a co...
What industries use 4-Amino-1-methyl-1H-pyrazole-5-carboxylic acid hydrochloride (CAS: 92534-70-8)?
4-Amino-1-methyl-1H-pyrazole-5-carboxylic acid hydrochloride (CAS: 92534-70-8) i...
What regulatory guidelines apply to dehydropachymic acid (CAS: 77012-31-8)?
Dehydropachymic acid (CAS: 77012-31-8) is regulated by various agencies. It fall...
What is the market or research trend for 6-[(2,2-Dimethylpropanoyl)amino]nicotinic acid (CAS: 898561-66-5)?
The market and research trends for 6-[(2,2-Dimethylpropanoyl)amino]nicotinic aci...
How should 1,10-Phenanthroline-2,9-dicarbaldehyde (CAS: 57709-62-3) be stored?
1,10-Phenanthroline-2,9-dicarbaldehyde should be stored in a cool, dry place awa...
How is 5-Carbamoyl-11-oxo-10,11-dihydro-5H-dibenzo[b,f]azepin-10-yl acetate (CAS: 113952-21-9) typically synthesized?
5-Carbamoyl-11-oxo-10,11-dihydro-5H-dibenzo[b,f]azepin-10-yl acetate can be synt...
Source Journal
Physical Chemistry Chemical Physics

Physical Chemistry Chemical Physics (PCCP) is an international journal co-owned by 19 physical chemistry and physics societies from around the world. This journal publishes original, cutting-edge research in physical chemistry, chemical physics and biophysical chemistry. To be suitable for publication in PCCP, articles must include significant innovation and/or insight into physical chemistry; this is the most important criterion that reviewers and Editors will judge against when evaluating submissions. The journal has a broad scope and welcomes contributions spanning experiment, theory, computation and data science. Topical coverage includes spectroscopy, dynamics, kinetics, statistical mechanics, thermodynamics, electrochemistry, catalysis, surface science, quantum mechanics, quantum computing and machine learning. Interdisciplinary research areas such as polymers and soft matter, materials, nanoscience, energy, surfaces/interfaces, and biophysical chemistry are welcomed if they demonstrate significant innovation and/or insight into physical chemistry. Joined experimental/theoretical studies are particularly appreciated when complementary and based on up-to-date approaches.














