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Charged States and Band-Gap Narrowing in Codoped ZnO Nanowires for Enhanced Photoelectrochemical Responses
Charged States Band-Gap Narrowing Codoped ZnO Nanowires Enhanced Photoelectrochemical Responses
2012/2/27
By means of first-principles calculations within the density functional theory, we study the structural and optical properties of codoped ZnO nanowires and compare them with those of the bulk and film...
Inhibited spontaneous emission of quantum dots observed in a 3D photonic band gap
3D photonic band gap spontaneous emission
2011/8/31
We present time-resolved emission experiments of semiconductor quantum dots in silicon 3D inverse-woodpile photonic band gap crystals. A systematic study is made of crystals with a range of pore radii...
First principles investigation of Bi$_6$Ti$_4$O$_{17}$: oxide ferroelectricity with a low band gap
First principles investigation low band gap
2010/11/25
We report first principles studies of the hypothetical compound Bi6Ti4O17, which is an alternate stacking of the ferroelectric Bi4Ti3O12. We find that this compound is ferroelectric, similar to Bi4Ti3...
Direct observation of band-gap closure for a semiconducting carbon nanotube in a large parallel magnetic field
Direct observation of band-gap closure semiconducting carbon nanotube large parallel magnetic field
2010/11/23
We have investigated the magnetoconductance of semiconducting carbon nanotubes (CNTs) in
pulsed, parallel magnetic elds up to 60 T, and report the direct observation of the predicted band-gap closur...
Progress towards fabrication of Th:229-doped high energy band-gap crystals for use as a solid-state optical frequency reference
Th:229-doped high energy band-gap crystals solid-state optical frequency
2010/11/12
We have recently described a novel method for the construction of a solid-state optical frequency reference based on doping $^{229}$Th into high energy band-gap crystals. Since nuclear transitions ar...
Efficient Guiding of Cold Atoms though a Photonic Band Gap Fiber
Efficient Guiding Cold Atoms Photonic Band Gap Fiber
2010/10/29
We demonstrate the first guiding of cold atoms through a 88 mm long piece of photonic band gap fiber. The guiding potential is created by a far-off resonance dipole trap propagating inside the fiber w...
Band gap structure of disordered chiral photonic crystals
Band gap s tructure Disorder Photonic c rystals
2013/7/3
Based o n the non-symmetric transmission-line method, the b and gap structure of disordered chiral photonic c rystals (CPC) has b een inve stigated. T he influence of the c hiral parameters, the disor...
Coupled Band Gap Solitons in One-Dimensional Alternating
Heisenberg Ferromagnetic Chains
gap solitons Heisenberg ferromagnetic chains
2007/8/15
2001Vol.36No.4pp.477-482DOI:
Coupled Band Gap Solitons in One-Dimensional Alternating
Heisenberg Ferromagnetic Chains
ZHU Shan-Hua1,2 and HUANG Guo-Xiang1
1 Key Laborato...
Band Gap of Cubic AlN, GaN and InN Compounds Under Pressure
Lattice parameter bulk modulus pressure coefficient FP-LAPW, WIEN(2k)
2010/4/9
Numerical simulation based on FP-LAPW calculations is applied to study the lattice parameters, bulk modulus and band gap energy of zinc blende binaries AlN, GaN and InN under hydrostatic pressure. The...
Effect of Thermal Annealing on the Band GAP and Optical Properties of Chemical Bath Deposited ZnSe Thin Films
Chemical bath Deposition ZnSe Thin film band gap Solar Cells
2010/4/9
Zinc selenide (ZnSe) thin films were deposited on glass substrate using the chemical bath deposition method at room temperature from aqueous solutions of zinc sulphate and sodium selenosulfate in whic...
The Density of States and Band Gap of Liquid Water by Sequential Monte Carlo/Quantum Mechanics Calculations
Liquid Water Sequential Monte Carlo/Quantum Mechanics Calculations DOS EG
2010/10/18
Electronic properties of liquid water were investigated by sequential Monte Carlo/Quantum mechanics calculations. The density of states (DOS) and HOMO-LUMO gap (EG) of liquid water have been determine...
Improved techniques in semiconductor fabrication increased the interest in quantum wire structures, because of their opto-electronic device application possibilities. Many-body interactions among the ...