The Effect of In3 + and Ga3 + Ions on the Band Gap of Crystals of Alkaline-Earth Fluorides: A Nonempirical Calculation

2019 ◽  
Vol 126 (4) ◽  
pp. 346-349 ◽  
Author(s):  
A. S. Myasnikova ◽  
A. I. Bogdanov
2020 ◽  
Vol 59 (11) ◽  
pp. 7376-7379 ◽  
Author(s):  
Huixin Fan ◽  
Guang Peng ◽  
Chensheng Lin ◽  
Kaichuang Chen ◽  
Shunda Yang ◽  
...  

2011 ◽  
Vol 320 ◽  
pp. 410-414 ◽  
Author(s):  
Chuan Hui Zhang ◽  
Qiong Ran ◽  
Jiang Shen

The structural stability and electronic properties of silicene-like nanotubes by metal atoms encapsulated were studied by first-principles. The calculations demonstrate that all the structures of nanotubes are stable, expect beryllium doped. Some nanotubes are semiconductor with small value of band gap while others are conductor, because the interaction and hybridizations decrease the band gap. Our electronic structure analysis shows that metal atoms gain electrons and Si atoms lose electrons as a whole, some electrons transferred from Si to metal atoms. We hope that our calculations will provide help to further experimental studies.


2014 ◽  
Vol 43 (23) ◽  
pp. 8905-8910 ◽  
Author(s):  
Lili Liu ◽  
Xin Su ◽  
Yun Yang ◽  
Shilie Pan ◽  
Xiaoyu Dong ◽  
...  

Ba2B10O17, a new barium borate, with a band-gap of 5.97 eV, possesses a wide transmission range from 180 to 3000 nm.


2008 ◽  
Vol 92 (20) ◽  
pp. 201909 ◽  
Author(s):  
Soonil Lee ◽  
William H. Woodford ◽  
Clive A. Randall

2017 ◽  
Vol 2017 ◽  
pp. 1-13
Author(s):  
Mengyao Sun ◽  
Zhiyong Wang ◽  
Yayun Zhao ◽  
Junchao Jin ◽  
Jianrong Xiao ◽  
...  

A new 2D material, phosphorene, has several remarkable advantages; various superiorities make phosphorene a research hotspot. This paper provides comprehensive information about the structure and electronic and magnetic properties of phosphorene adsorbed with atoms, including alkali and alkaline-earth metal atoms, nonmetallic atoms, noble metal atoms, and transition-metal atoms. Phosphorene adsorbed with alkali and alkaline-earth metal atoms, such as Li and Na adatoms, becomes an n-type semiconductor, while phosphorene adsorbed with Be and Mg atoms becomes a p-type semiconductor. In view of nonmetallic adatoms (B, C, N, and O), the B adatom decorated phosphorene becomes metallic, the band gap of phosphorene adsorbed with C adatom decreases, and the phosphorene is p-type with N adatom, while the electronic property of O adatom adsorption case is affected slightly. Regarding noble metal adatoms adsorption condition, the Ag adatom makes phosphorene a n-type semiconductor, the Au adatom induces phosphorene to have a magnetism of 1 μB, and the electronic property of phosphorene is changed by adsorbing with Pt adatom. Among transition-metal adatoms, such as Fe, Ni, Co, Cu, and Zn adatoms, the band gap is reduced when Fe/Ni adatom adheres to the surface of phosphorene, The Co adsorbed phosphorene turns into a polar-gapless semiconductor and phosphorene is proved to be n-type with Cu adatom, but it is testified that the Zn atom is not suitable to adsorb on the phosphorene.


Author(s):  
Liang Zhu ◽  
Mingqiang Gai ◽  
Wenqi Jin ◽  
Yun Yang ◽  
Zhihua Yang ◽  
...  

Two new alkaline-earth-metal fluoroiodate compounds, BaI2O5F2 and BaIO2F3, were successfully synthesized by replacing the O atoms in the iodates with F atoms via the hydrothermal method. They crystallize in centrosymmetric...


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