نتایج جستجو برای: gap energy
تعداد نتایج: 791823 فیلتر نتایج به سال:
in this study, the adsorption of 4-hydroxy phenyl-azobenzene on the surface of (4, 0) zigzag open-end boron nitride nanotube (bnnt) has been investigated by quantum calculations. in order to find the preferred adsorption site, different positions and orientations were considered. the impacts of donor-acceptor electron delocalization on the structural and electronic properties and reactivity of ...
Novel method doped carbon with nanoparticle Cr2O3 and thin film has been studied in much thought in wavelength range, the doping can help new excellent physical and chemical properties for carbon, this application has a semiconductor feature. Nanocomposite thin film deposited on copper and glass substrates have been created by utilizing Spray Pyrolysis method. The prec...
In this paper, we have studied the strain, band-edge, and energy levels of cubic InGaAs quantum dots (QDs) surrounded by GaAs. It is shown that overall strain value is larger in InGaAs-GaAs interfaces, as well as in smaller QDs. Also, it is proved that conduction and valence band-edges and electron-hole levels are size dependent; larger QD sizes appeared to result in the lower recombination...
In this work, the stability and electronic structure of zigzag double-walled silicon carbide nanotubes (DWSiCNTs) (6,0)@(n,0) (with n=11-17) were investigated by using ab initio Van der Waals density functional. By calculating the formation energy and the binding energy of each double walled nanotube, the best interwall distance for the outer nanotube was indicated. The results revealed that (1...
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این تحقیق به منظور یافتن تاثیر دو نوع task به نام های information gap و opinion gap بر روی نوشتار زبان آموزان برون گرا بوده است. به این منظور گروهی از 110 دانش آموز دبیرستانی به پرسشنامه آیزنک پاسخ دادند که از بین آنها 91 دانش آموز برون گرا انتخاب شد. این 91 نفر قبل از شروع کار برای همگون سازی در آزمون پت شرکت کردند. در نهایت دو گروه که یک گروه شامل 32 دانش آموز با opinion gap taskو یک گروه 30 ...
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