نتایج جستجو برای: 3c doped

تعداد نتایج: 54212  

Journal: :iranian chemical communication 2016
mahdi rezaei sameti etrat alsadat dadfar

in this research, we studied the structure, properties and nmr parameters of interaction f2 gas with pristine and 3c-doped (8, 0) zigzag models of boron phosphide nanotubes (bpnts). in order to reach these aims, we considered four different configurations for adsorption of f2gas on the outer and inner surfaces of bpnts. the structures of all models were optimized by using density functional the...

Journal: :Science and technology of advanced materials 2008
Takahiro Muranaka Yoshitake Kikuchi Taku Yoshizawa Naoki Shirakawa Jun Akimitsu

We report growth and characterization of heavily boron-doped 3C-SiC and 6H-SiC and Al-doped 3C-SiC. Both 3C-SiC:B and 6H-SiC:B reveal type-I superconductivity with a critical temperature Tc=1.5 K. On the other hand, Al-doped 3C-SiC (3C-SiC:Al) shows type-II superconductivity with Tc=1.4 K. Both SiC:Al and SiC:B exhibit zero resistivity and diamagnetic susceptibility below Tc with effective hole...

2016
Jianwu Sun Valdas Jokubavicius L. Gao Ian Don Booker Mattias Jansson Xinyu Liu M. Linnarsson P. Wellmann I. Ramiro A. Marti Rositsa Yakimova Mikael Syväjärvi Lu Gao Ian Booker Jan P. Hofmann Emiel J. M. Hensen Margareta Linnarsson Peter Wellmann Iñigo Ramiro Antonio Marti

There is a strong and growing worldwide research on exploring renewable energy resources. Solar energy is the most abundant, inexhaustible and clean energy source, but there are profound material challenges to capture, convert and store solar energy. In this work, we explore 3C-SiC as an attractive material towards solar-driven energy conversion applications: (i) Boron doped 3C-SiC as candidate...

دادفر, عترت السادات, رضایی صامتی, مهدی,

In this research, the structure, quantum and NQR (Nuclear quadrupole resonance)parameters of F2 gas adsorption on the pristine and 3C-doped (4,4) armchair models of boron phosphide nanotubes (BPNTs) have been investigated in the framework of density functional theory. For this purpose, at the first step, four models for F2 adsorption on the inner and outer surfaces of pristine and 3C-doped BPNT...

Etrat alsadat Dadfar Mahdi Rezaei Sameti,

In this research, we studied the structure, properties and NMR parameters of interaction F2 gas with pristine and 3C-doped (8, 0) zigzag models of boron phosphide nanotubes (BPNTs). in order to reach these aims, we considered four different configurations for adsorption of F2gas on the outer and inner surfaces of BPNTs. The structures of all models were optimized by using density functional the...

Journal: :Nanoscale 2015
Tao Yang Xiwang Chang Junhong Chen Kuo-Chih Chou Xinmei Hou

B-doped 3C-SiC nanowires have been synthesized via a facile and simple carbothermal reduction method at 1500 °C for 2 h in a flowing purified argon atmosphere. The obtained nanowires possess a single crystalline and finned microstructure with fins about 100-200 nm in diameter and 10-20 nm in thickness. The diameter of the inner core stem is about 80 nm on average. Due to the smaller band gap, t...

2016
Hoang-Phuong Phan Toan Dinh Takahiro Kozeki Afzaal Qamar Takahiro Namazu Sima Dimitrijev Nam-Trung Nguyen Dzung Viet Dao

Cubic silicon carbide is a promising material for Micro Electro Mechanical Systems (MEMS) applications in harsh environ-ments and bioapplications thanks to its large band gap, chemical inertness, excellent corrosion tolerance and capability of growth on a Si substrate. This paper reports the piezoresistive effect of p-type single crystalline 3C-SiC characterized at high temperatures, using an i...

2012
C. A. Hancock R.C.T. Slade J. R. Varcoe P. R. Slater

In this paper we report the successful incorporation of sulfate and phosphate into SrCoO3 leading to a change from a 2H– to a 3C–perovskite polymorph. Structural characterization by neutron diffraction showed extra weak peaks related to oxygen vacancy ordering, and these could be indexed on an expanded tetragonal cell, containing two inequivalent Co sites, similar to previously reported for Sb ...

2011
J. R. Varcoe P. R. Slater

2 Abstract In this paper we report the successful incorporation of sulfate and phosphate into SrCoO 3 leading to a change from a 2H– to a 3C–perovskite polymorph. Structural characterization by neutron diffraction showed extra weak peaks related to oxygen vacancy ordering, and these could be indexed on an expanded tetragonal cell, containing two inequivalent Co sites, similar to previously repo...

Journal: :IEEE Journal of the Electron Devices Society 2022

This study examined the temperature-related piezoresistance issues of p-type doped 3C-silicon carbide (3C-SiC) materials. Previously, we proposed temperature models that describe phenomena based on ionization energies materials oriented for high-temperature operations. aimed to determine energy as a function aluminum doping concentration 3C-SiC. However, at low-temperature region drastic decrea...

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