Journal ArticleDOI
Origin of Surface Conductivity in Diamond
TLDR
Experimental evidence is given that hydrogen is only a necessary requirement for SC; exposure to air is also essential and a mechanism in which a redox reaction in an adsorbed water layer provides the electron sink for the subsurface hole accumulation layer is proposed.Abstract:
Hydrogen-terminated diamond exhibits a high surface conductivity (SC) that is commonly attributed to the direct action of hydrogen-related acceptors. We give experimental evidence that hydrogen is only a necessary requirement for SC; exposure to air is also essential. We propose a mechanism in which a redox reaction in an adsorbed water layer provides the electron sink for the subsurface hole accumulation layer. The model explains the experimental findings including the fact that hydrogenated diamond is unique among all semiconductors in this respect.read more
Citations
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Journal ArticleDOI
Nitrogen-Vacancy Centers in Diamond: Nanoscale Sensors for Physics and Biology
TL;DR: A concise overview of the basic properties of diamond, from synthesis to electronic and magnetic properties of embedded NV centers, and how single NV centers can be harnessed for nanoscale sensing are described, including the physical quantities that may be detected, expected sensitivities, and the most common measurement protocols.
Journal ArticleDOI
Ab initio random structure searching
TL;DR: Ab initio random structure searching (AIRSS) as discussed by the authors searches for stable structures of materials using first-principles electronic structure methods, such as density-functional-theory (DFT), is a rapidly growing field.
Journal ArticleDOI
Selective assembly on a surface of supramolecular aggregates with controlled size and shape
TL;DR: These findings suggest that careful placement of functional groups that are able to participate in directed non-covalent interactions will allow the rational design and construction of a wide range of supramolecular architectures absorbed to surfaces.
Journal ArticleDOI
Charge Transfer Equilibria Between Diamond and an Aqueous Oxygen Electrochemical Redox Couple
Vidhya Chakrapani,John C. Angus,Alfred B. Anderson,Scott D. Wolter,Brian R. Stoner,Gamini Sumanasekera +5 more
TL;DR: It is shown that electrons transfer between the diamond and an electrochemical reduction/oxidation couple involving oxygen is responsible for the surface conductivity and also influences contact angles and zeta potentials.
Journal ArticleDOI
Novel cold cathode materials and applications
Ningsheng Xu,S. Ejaz Huq +1 more
TL;DR: In this article, a review of field emission cold cathode materials has been presented, focusing on several kinds of novel cold cathodes that have been developed in the past decade, including materials for microfabricated field-emitter arrays, diamond and related films, carbon nanotubes, other quasi one-dimensional nanomaterials and printable composite materials.
References
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Book
CRC Handbook of Chemistry and Physics
TL;DR: CRC handbook of chemistry and physics, CRC Handbook of Chemistry and Physics, CRC handbook as discussed by the authors, CRC Handbook for Chemistry and Physiology, CRC Handbook for Physics,
Journal ArticleDOI
Photocatalysis on TiO2 Surfaces - Principles, Mechanisms, and Selected Results
TL;DR: In this article, the authors focus on interfacial processes and summarize some of the operating principles of heterogeneous photocatalysis systems, including the electron transfer and energy transfer processes in photocatalytic reactions.
Book
The Handbook of Infrared and Raman Characteristic Frequencies of Organic Molecules
TL;DR: The -NH2, -NHR, and -NR2 groups as discussed by the authors are the most commonly used groups for double bonds containing Nitrogen Atoms, and the -C=N and -N=C groups.
Journal ArticleDOI
Resistivity of chemical vapor deposited diamond films
M. I. Landstrass,K. V. Ravi +1 more
TL;DR: In this paper, a mechanism for the low resistivity of the as-grown diamond films is postulated to be due to hydrogen passivation of traps in the films, which is confirmed by an observed reduction of the resistivity when they are subjected to a plasma hydrogen treatment.