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2,764 Newest Publications about the topic doping
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Environmentally friendly reduction of platinum catalyst precursor supported on polypyrrole
22-05-2013 | A Sepulveda-Escribano; Robison Buitrago-Sierra; M.Mercedes Pastor-Blas; M. Jesús García-Fernández, Green Chemistry, 2013
Supported metals are traditionally prepared by impregnating a support material with the metal precursor solution, followed by reduction in hydrogen at elevated temperatures. In this study, a polymeric support has been considered. Polypyrrole (PPy) has been chemically synthesized using FeCl3 ...
On the Differing Sensitivity to Chemical Gating of Single and Double Layer Epitaxial Graphene Explored Using Scanning Kelvin Probe Microscopy
17-05-2013 | Ruth Pearce; Jens Eriksson; Tihomir Iakimov; Lars Hultman; Anita Lloyd Spetz; Rositza Yakimova, ACS Nano, 2013
Using environmental scanning Kelvin probe microscopy, we show that the position of the Fermi level of single layer graphene is more sensitive to chemical gating than that of double layer graphene. We calculate that the difference in sensitivity to chemical gating is not entirely due to the ...
Selective area growth of InAs on InP with dielectric mask
16-05-2013 | C. Y. Chou, A. Torfi, and W. I. Wang, Journal of Vacuum Science & Technology B, 2013
Low resistance ohmic contacts are important for high frequency applications of InP-based heterojunction bipolar transistors and high electron mobility transistors. In this paper, the authors investigate the use of an InAs layer as the low-resistance ohmic contact to these heterostructure ...
Structural, optical and thermal properties of Zr–Fe co‐doped congruent LiNbO3 single crystals
15-05-2013 | B. Riscob, R. Bhatt, N. Vijayan, Indranil Bhaumik, S. Ganesamoorthy, M. A. Wahab, , G. Bhagavannarayana, Journal of Applied Crystallography, 2013
Zr–Fe‐doped congruent lithium niobate single crystals were grown by the Czochralski technique. The crystal structure and lattice parameter of the grown crystals were assessed by powder X‐ray diffraction and the strain developed as a result of doping has been calculated (−1.19 × 10−3) by ...
Seebeck Coefficient of Nanowires Interconnected into Large Area Networks
15-05-2013 | Giovanni Pennelli; Massimo Totaro; Massimo Piotto; Paolo Bruschi, Nano Letters, 2013
We measured the macroscopic Seebeck coefficient of silicon nanowires (SiNWs), organized in a highly interconnected networks on large areas (order of mm2). The fabricated networks are very reliable with respect to random nanowire failure and are electrically and thermally equivalent to many ...
Power‐law conductivity in polythiophene/copper(II) acetylacetonate composites
14-05-2013 | Seda Erdönmez, Ersel Ozkazanc, Polymer International, 2013
Abstract This paper reports the charge transport mechanism of polythiophene (PT) matrix composites having various concentrations of copper(II) acetylacetonate. Characterization and structural analyses of the samples were carried out via Fourier transform infrared spectroscopy, atomic ...
Temperature Dependence of Ionic Conductivity of Ceria Electrolyte at Concentrated Range of Multiple Doping
13-05-2013 | Snigdha Panigrahi, Ramesh Chandra Biswal, Shahid Anwar, Laxmidhar Besra, Sarama Bhattacharjee, Journal of the American Ceramic Society, 2013
We study ionic conductivity of heavily doped ceria, doping level close to 50mol% with multiple lanthanides in the temperature range of 200°C–500°C. The doped ceria is found to be single fluorite phase, where unit cell is dilated to 0.5527nm, compared with pure ceria (0.5422nm). ...
Ferroelectric Control of the Conduction at the LaAlO3/SrTiO3 Heterointerface
13-05-2013 | Vu Thanh Tra, Jhih‐Wei Chen, Po‐Cheng Huang, Bo‐Chao Huang, Ye Cao, Chao‐Hui Yeh, Heng‐Jui Liu, Eugene A. Eliseev, A ..., Advanced Materials, 2013
Modulation of band bending at a complex oxide heterointerface by a ferroelectric layer is demonstrated. The as‐grown polarization (Pup) leads to charge depletion and consequently low conduction. Switching the polarization direction (Pdown) results in charge accumulation and enhances the ...
Novel sol-gel preparation of V-TiO2 films for the photocatalytic oxidation of ethanol in air
13-05-2013 | Author(s): Iolanda Cimieri , Hilde Poelman , Jana Ryckaert , Dirk Poelman, Journal of Photochemistry and Photobiology A: Chemistry, 2013
Publication date: Available online 6 May 2013 Source:Journal of Photochemistry and Photobiology A: Chemistry Author(s): Iolanda Cimieri , Hilde Poelman , Jana Ryckaert , Dirk Poelman A series of vanadium-doped TiO2 catalysts was synthesized by a novel non-aqueous sol-gel method. ...
Gd-doped BiFeO3 nanoparticles - A novel material for highly efficient dye-sensitized solar cells
13-05-2013 | Author(s): Gurmeet Singh Lotey , N.K. Verma, Chemical Physics Letters, 2013
Publication date: Available online 6 May 2013 Source:Chemical Physics Letters Author(s): Gurmeet Singh Lotey , N.K. Verma This communication reports a novel idea on dye-sensitized solar cells (DSSCs) fabricated using Gd-doped BiFeO3 nanoparticles with particle size between 26-30 nm. ...
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