نتایج جستجو برای: vibration band gap

تعداد نتایج: 310115  

2017
Jeonglae Kim

Position variation technology is composed the vibration status of the flash recognition rate (FRR) and gap recognition rate (GRR) on the diffusing recognition function. The recognition rate condition by the diffusing recognition function is associated with the spreading vibration system. As to search a position of the natural burial, we are consisted of the diffusing value with master and slave...

زهرایی, سیدحسن, قرائتی, عبدالرسول,

In this paper, using plane ware expansion method the polarization-dependent band structures are investigated in two dimensional photonic crystal waveguide with a square lattice composed of GaAs elliptic elements in air background. Then, the changes of the band structure with changing ellipticity of the elliptic elements are discussed. It is observed that by increasing the ellipticity of element...

Fatemeh Houshmand, Jeremy Schofield Seifollah Jalili,

Graphyne and graphdiyne families of flat carbon (sp2/sp) networks with high degrees of π-conjunction are attracting much attention due to their promising electronic, optical, and mechanical properties. In the present investigation we have studied the structural, mechanical, electrical and optical properties of halogenated graphdiyne and graphyne. The optical spectra of pure and halog...

Journal: :Physical Review Special Topics - Accelerators and Beams 2011

Journal: :physical chemistry research 2014
mohammed bouachrine najat belghiti mohammed nassiri bennani simohamed bouzzine mohamed hamidi

the research in the short-chain organic -conjugated molecules has become one of the most interesting topics in the fields of chemistry. these compounds have become the most promising materials for the optoelectronic device technology. the use of low band gap materials is a viable method for better harvesting of the solar spectrum and increasing its efficiency. the control of the band gap of th...

2016
Aslihan Suslu Kedi Wu Hasan Sahin Bin Chen Sijie Yang Hui Cai Toshihiro Aoki Seyda Horzum Jun Kang Francois M. Peeters Sefaattin Tongay

We present two-dimensional Mg(OH)2 sheets and their vertical heterojunctions with CVD-MoS2 for the first time as flexible 2D insulators with anomalous lattice vibration and chemical and physical properties. New hydrothermal crystal growth technique enabled isolation of environmentally stable monolayer Mg(OH)2 sheets. Raman spectroscopy and vibrational calculations reveal that the lattice vibrat...

ZnO and ZnO: Mn nanocrystals synthesized via reverse micelle method. The structural properties nanocrystals were investigated by XRD and Transmission electron microscopy (TEM). The XRD results indicate that the synthesized nanocrystals had a pure wurtzite (hexagonal phase) structure. The various optical properties of these nanocrystals such as optical band gap energy, refractive index, dielectr...

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