نتایج جستجو برای: nano ring

تعداد نتایج: 173128  

Journal: :Opto-Electronic Advances 2021

With regard to micro-light-emitting diodes (micro-LEDs), their excellent brightness, low energy consumption, and ultra-high resolution are significant advantages. However, the large size of traditional inorganic phosphors number side defects have restricted practical applications small sized micro-LEDs. Recently, quantum dot (QD) non-radiative transfer (NRET) been proposed solve existing proble...

A. A. Maghsoudi A. Darbhenz M. J. Soheil

Nanotechnology is a favorite research area that revolutionized mechanical and chemical properties of materials. Recently, focusing on concrete as a porous material with micro-scale and nano-scale pores enthusiastic researchers developed their investigations to find out microstructure and mechanical properties of concrete. The aim of this paper is to investigate the effect of nano-silica as an a...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه یزد - دانشکده علوم پایه 1393

روش های معمول برای تهیه بنزوتیازول ها شامل تراکم 2-آمینوتیوفنول با کربوکسیلیک اسید ها، آلدهید ها و هم¬چنین ارتواسترها می باشد. در این کار، کاتالیست nano- γ-al2o3/bf3-n به عنوان کاتالیست اسید جامد تهیه شده است. برای تایید ساختار nano- γ-al2o3 و nano- γ-al2o3/bf3-n طیف مادون قرمز و پراش پرتو xگرفته شده است. مشتقهای بنزوتیازول از طریق تراکم آلدهید ها با 2-آمینوتیوفنول با استفاده از nano- γ-al2o...

2017
Jiao-xia Zhang Si Liu Chao Yan Xiao-jing Wang Lei Wang Ya-ming Yu Shi-yun Li

Considering the excellent solubility of pyrrolidone ring organic compounds, the synthesized N(trimethoxysilyl) propyl-N-methyl-2-pyrrolidone chlorides was tethered onto titanium dioxide (TiO2) nanoparticles to improve dispersion of TiO2, and then polyethylene oxide (PEO) oligomer through ion exchange embraced the tethered TiO2 to obtain a novel self-suspended hairy TiO2 nanomaterials without an...

2010
Gerald Lucovsky James C Phillips

This paper distinguishes between two different scales of medium range order, MRO, in non-crystalline SiO(2): (1) the first is ~0.4 to 0.5 nm and is obtained from the position of the first sharp diffraction peak, FSDP, in the X-ray diffraction structure factor, S(Q), and (2) the second is ~1 nm and is calculated from the FSDP full-width-at-half-maximum FWHM. Many-electron calculations yield Si-O...

Journal: :Chinese Physics 2022

Unidirectional scattering of various plasmonic nanoantennas has been extensively studied, giving birth to applications such as in optical sensors, solar cells, spectroscopy and light-emitting devices. The directional magnetic nanoantenna is still unexplored, though it beneficial artificial magnetism including metamaterials, cloaking nonlinear resonance. In this work, we numerically investigate ...

Journal: :Nanoscale 2016
Shengtao Mei Kun Huang Hong Liu Fei Qin Muhammad Q Mehmood Zhengji Xu Minghui Hong Daohua Zhang Jinghua Teng Aaron Danner Cheng-Wei Qiu

The orbital angular momentum (OAM) of light can be taken as an independent and orthogonal degree of freedom for multiplexing in an optical communication system, potentially improving the system capacity to hundreds of Tbits per second. The high compactness and miniaturization of devices required for optical communications impose strict requirements on discriminating OAM modes of light at a smal...

2017
Jie Li Ming-Jie Zhu Ying-Hua Wang Ren-Chao Jin Jia-Qi Li Zheng-Gao Dong

The far-field radiation of a single dipolar emitter can be controlled by coupling to toroidal dipole resonance attached to metallic double flat rings, realizing a conversion from non- to super-radiating. The underlying physical mechanism is the hybridization interference of toroidal and electric dipoles under an asymmetric configuration by introducing a radial displacement of the dipolar emitte...

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