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The light absorption of [001] grown single-crystalline silicon wafers can be enhanced by chemical etching with potassium hydroxide resulting in a pyramid-like surface texture. Alongside this advantageous property in the context of solar…

The synthesis of embedded silicon carbide was carried out in N type silicon samples having (100) and (111) orientations using high dose implantation of carbon ions at room temperature. The variation of dose was employed to get dose…

材料科学 · 物理学 2007-05-23 Y. S. Katharria , V. BAranwal , D. C. Agarwal , R. Krishna , P. Kumar , F. Singh , D. Kanjilal

Secondary Ions Mass Spectroscopy and Hall effect measurements were performed on boron doped silicon with concentration between 0.02 at.% and 12 at.%. Ultra-high boron doping was made by saturating the chemisorption sites of a Si wafer with…

A theoretical investigation of the microscopic mechanisms provided the transient enhanced diffusion of boron atoms during rapid thermal annealing of silicon substrates doped by high fluence ion implantation was carried out. To compare the…

介观与纳米尺度物理 · 物理学 2010-07-23 O. I. Velichko , A. A. Hundoryna

We report on the structural properties of highly B-doped silicon (> 2 at. %) realised by nanosecond laser doping. We investigate the crystalline quality, deformation and B distribution profile of the doped layer by STEM analysis followed by…

材料科学 · 物理学 2023-02-22 G. Hallais , G. Patriarche , L. Desvignes , D. Débarre , F. Chiodi

Superconducting boron-doped silicon films prepared by gas immersion laser doping (GILD) technique are analyzed by atom probe tomography. The resulting three-dimensional chemical composition reveals that boron atoms are incorporated into…

In 2004 the discovery of superconductivity in heavily boron-doped diamond (C:B) led to an increasing interest in the superconducting phases of wide-gap semiconductors. Subsequently superconductivity was found in heavily boron-doped cubic…

超导电性 · 物理学 2009-11-13 M. Kriener , T. Muranaka , Z. -A. Ren , J. Kato , J. Akimitsu , Y. Maeno

The discoveries of superconductivity in the heavily-boron doped semiconductors diamond (C:B) in 2004 and silicon (Si:B) in 2006 have renewed the interest in the physics of the superconducting state of doped semiconductors. Recently, we…

超导电性 · 物理学 2009-11-13 M. Kriener , Y. Maeno , T. Oguchi , Z. -A. Ren , J. Kato , T. Muranaka , J. Akimitsu

Introducing an isolated intermediate band (IB) into a wide band gap semiconductor can potentially improve the optical absorption of the material beyond the Shockley-Queisser limitation for solar cells. Here, we present a systematic study of…

材料科学 · 物理学 2018-05-24 Tingting Wang , Xiaoguang Li , Wenjie Li , Li Huang , Ya Cheng , Jun Cui , Hailin Luo , Guohua Zhong

We study within a first-principle approach the band structure, vibrational modes and electron-phonon coupling in boron, aluminum and phosphorus doped silicon in the diamond phase. Our results provide evidences that the recently discovered…

超导电性 · 物理学 2007-05-23 E. Bourgeois , X. Blase

A laser multicharged ion source was used to perform interfacial treatment of the 4H-SiC/ SiO2 interface using B and Ba ions. A Q-switched Nd:YAG laser (wavelength {\lambda} = 1064 nm, pulse width {\tau} = 7 ns, and fluence F = 135 J/cm2)…

材料科学 · 物理学 2021-01-26 Md Haider Shaim , Hani E. Elsayed-Ali

B-doped $\delta$-layers were fabricated in Si(100) using BCl$_{3}$ as a dopant precursor in ultrahigh vacuum. BCl$_{3}$ adsorbed readily at room temperature, as revealed by scanning tunneling microscopy (STM) imaging. Annealing at elevated…

材料科学 · 物理学 2021-08-19 K. J. Dwyer , S. Baek , Azadeh Farzaneh , Michael Dreyer , J. R. Williams , R. E. Butera

Elementary semiconductors are rare and attractive, especially for low-dimensional materials. Unfortunately, most of boron nanostructures were found to be metallic, despite of their typical semiconducting bulk structure. Herein, we propose a…

介观与纳米尺度物理 · 物理学 2018-11-01 Shao-Gang Xu , Xiao-Tian Li , Yu-Jun Zhao , Wang-Ping Xu , Ji-Hai Liao , Xiu-Wen Zhang , Hu Xu , Xiao-Bao Yang

Recent work on atomic-precision dopant incorporation technologies has led to the creation of both boron and aluminum $\delta$-doped layers in silicon with densities above the solid solubility limit. We use density functional theory to…

材料科学 · 物理学 2023-08-23 Quinn T. Campbell , Shashank Misra , Andrew D. Baczewski

Silicon carbide (SiC), is an artificial semiconductor used for high-power transistors and blue LEDs, for its extraordinary properties. SiC would be attractive for more applications, but large-scale or large-surface area fabrication, with…

Two quintuple layers of strong topological insulator Bi2Se3 are coupled by a Bi bilayer in BiSe crystal. We investigated its electronic structure using angle resolved photoelectron spectroscopy to study its topological nature. Dirac like…

材料科学 · 物理学 2023-10-31 H. Lohani , K. Majhi , R. Ganesan , S. Gonzalez , G. Di Santo , L. Petaccia , P. S. Anil Kumar , B. R. Sekhar

The deposition of boron-doped amorphous carbon thin films on SiO2 substrate was achieved via a focused ion beam-assisted chemical vapor deposition of triphenyl borane (C18H15B) and triphenyl borate (C18H15BO3). The existence of boron in the…

Cubic silicon carbide (3C-SiC) is an emerging material for high power and new generation devices, but the development of high quality 3C-SiC layer still represents a scientific and technological challenge especially when grown on a Si…

应用物理 · 物理学 2020-01-17 M. Zimbone , M. Zielinski , E. G. Barbagiovanni , C. Calabretta , F. La Via

The charge, bonding, and optical properties of the calcium-doped boron cluster B$_7$Ca$_2$ have been systematically investigated using density functional theory calculations. Extensive global basin-hopping searches identify a single-ring…

材料科学 · 物理学 2026-03-04 Peter Ludwig Rodríguez-Kessler

This work reports the strain effect on the electrical properties of highly doped n-type single crystalline cubic silicon carbide (3C-SiC) transferred onto a 6-inch glass substrate employing an anodic bonding technique. The experimental data…

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