Results 261 to 270 of about 38,824 (303)

Boron-Doped Molecules for Optoelectronics

Trends in Chemistry, 2019
Boron-containing π-conjugated systems are an emerging class of materials for important energy-conversion applications. Because of its electron-deficient nature, embedding boron atoms into an organic material introduces electron-accepting centers that impart unique optoelectronic functions and greatly enhance performance in energy-conversion devices ...
Soren K. Mellerup, Suning Wang
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Ferrihydrite modification by boron doping

Hyperfine Interactions, 2003
Modification of ferrihydrite nanoparticles with boron is investigated using Mossbauer spectroscopy and powdered X-ray diffraction. These materials were heated to temperatures up to 600°C. The addition of the boron in the fabrication of ferrihydrite nanoparticles raises the transition temperature of the phase transformation of ferrihydrite to hematite ...
John G. Stevens, Airat M. Khasanov, Melissa S. Grasette White   +2 more
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Conductivity in boron-doped diamond

Physical Review B, 2001
The appearance of additional states of an impurity under high doping levels is discussed. On the basis of a Fermi level calculation, a model for the conductivity of heavily boron-doped diamond is proposed. This model allows one to reproduce the temperature dependence of the conductivity and of the Hall coefficient for different impurity concentrations.
Rinat F. Mamin, Takashi Inushima
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Superconductivity in boron-doped diamond

Diamond and Related Materials, 2005
Here we report the experimental study of a new superconductor, B-doped diamond. Subjecting a mixture of amorphous boron with graphite to a high-temperature and high-pressure treatment, we synthesized polycrystalline boron-doped diamond samples, whose sizes were suitable for specific heat measurements.
V.A. Sidorov, E.A. Ekimov, E.D. Bauer, N.N. Mel'nik, N.J. Curro, V. Fritsch, J.D. Thompson, S.M. Stishov, A.E. Alexenko, B.V. Spitsyn   +9 more
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Boron-doped silicon nano-wires

Materials Science and Engineering: B, 2007
Abstract The boron-doped silicon nano-wires (B-SiNWs) were fabricated by chemical vapor deposition (CVD) and Al 2 O 3 template process at a low temperature (620 °C). It is found that the peaks in Raman scattering and photoluminescence spectra shift after boron-doping, indicating that the crystalline degree of B-SiNWs was slightly varied compared ...
Jun Jie Niu, Jian Nong Wang, Yi Xiang Chen   +2 more
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Low temperature boron doped diamond

Applied Physics Letters, 2013
Low temperature boron doped diamond (LT-BDD) film deposited under 600 °C (460 °C minimum) has been reported. Study reveals that the deposition temperature and boron dopant cause nanocrystalline diamond (NCD) instead of ultrananocrystalline diamond (UNCD®).
Hongjun Zeng, Prabhu U. Arumugam, Shabnam Siddiqui, John A. Carlisle   +3 more
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Compressibility of boron-doped diamond

High Pressure Research, 2006
The isothermal bulk modulus K T strongly depends on chemical bonds and the structure of solids. It can be calculated though experimentally measurable parameters (P, V and T) and, thus, can be used as a quantitative characteristic establishing (describing) relations between the structure and atomic forces from one side, and the physical properties of ...
N. Dubrovinskaia, L. Dubrovinsky, W. A. Crichton, E. Zarechnaya, E. I. Isaev, I. A. Abrikosov   +5 more
openaire   +1 more source

pH sensing using boron doped diamond electrodes

Physical Chemistry Chemical Physics, 2011
The boron doped diamond (BDD) electrode is presented as an appropriate candidate for next generation glass-free, highly stable and accurate pH sensors. The method used in this study is based on the potential change related to the hydrogen evolution reaction following a current step, which is pH dependent.
Stéphane, Fierro, Naoko, Mitani, Christos, Comninellis, Yasuaki, Einaga   +3 more
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Porous Boron-Doped Diamond/Carbon Nanotube Electrodes

ACS Applied Materials & Interfaces, 2014
Nanostructuring boron-doped diamond (BDD) films increases their sensitivity and performance when used as electrodes in electrochemical environments. We have developed a method to produce such nanostructured, porous electrodes by depositing BDD thin film onto a densely packed "forest" of vertically aligned multiwalled carbon nanotubes (CNTs).
Zanin, H., May, P. W., Fermin, D. J., Plana, D., Vieira, S. M. C., Milne, W. I., Corat, E. J.   +6 more
openaire   +3 more sources

Electrochemical Behavior of Fluorinated Boron-Doped Diamond

Electrochemical and Solid-State Letters, 2003
The surface properties and the electrochem. behavior of a fluorinated B-doped diamond (F-BDD) electrode prepd. by plasma treatment in CF4-He mixt. was studied by XPS and cyclic voltammetry in acidic media. The results showed C-F bonding (C-CF and C-F) on the surface of F-BDD, which made the surface more hydrophobic.
G. SINE, L. OUATTARA, PANIZZA, MARCO, C. COMNINELLIS   +3 more
openaire   +2 more sources