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Optical absorption properties of Ge2–44 and P-doped Ge nanoparticles
The optical absorption properties of non-crystalline and crystalline Ge nanoparticles with the sizes from ～2.5 to 15 ? have been studied at the B3LYP/6-31G level using time-dependent density functional theory. Hydrogen passivation and phosphorus doping on some selected Ge nanoparticles were also calculated. With the increase of cluster size, the optical absorption spectra of the non-crystall...
http://www.polymer.cnt//ss/grouplu/publicationsshow_12547.html |
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Low temperature preparation and optical properties of K2Ti6O13
A simple and cost-effective route was developed for the low temperature (700 °C) synthesis of K2Ti6O13 powder, using low-melting-point KNO3 and high-reactive-activity P25 TiO2nanocrystals as the reactants. The characterization results from X-ray diffraction and field emission scanning electron microscopy revealed the successful preparation of monoclinic phase K2Ti6O13 crystall...
http://www.polymer.cnt//ss/zhangming/publicationsshow_10580.html |
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6. Sul-containing fluorinated polyimides for optical waveguide device
Novel sul-containing fluorinated polyimides have been synthesized by the reaction of 2,2''''''''-bis-(trifluoromethyl)-4,4''''''''-diaminodiphenyl sulfide (TFDAS) with 1,4-bis-(3,4-dicarboxyphenoxy)benzene dianhydride (HQDPA), 2,2''''''''-bis-(3,4-dicarboxyphenyl)hexafluoropropane dianhydride (6FDA), 4,4''''''''-oxydiphthalicanhydride (ODPA) or 3,4,3'''''''',4''''''''-biphenyl-tetracarboxylic acid...
http://www.polymer.cnt//ss/guanshaowei/publicationsshow_10348.html |
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Hybrid silicon–carbon nanostructures for broadband optical absorption
Proper design of nanomaterials for broadband light absorption is a key factor for improving the conversion efficiency of solar cells. Here we present a hybrid design of silicon–carbon nanostructures with silicon clusters coated by carbon cages, i.e., Sim@C2n for potential solar cell application. The optical properties of these hybrid nanostructures were calculated based on time dependent density ...
http://www.polymer.cnt//ss/grouplu/publicationsshow_10020.html |
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Si78 double cage structure and special optical properties
We performed first-principles calculations to study the structural stability of Si78 cluster with or without hydrogen passivation. The calculations reveal that an endohedral cage isomer is more stable than diamond-like structures, whereas the opposite is found for the hydrogen passivated isomers. In addition, the calculated optical properties show that ...
http://www.polymer.cnt//ss/grouplu/publicationsshow_8111.html |
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Preparation and Optical Properties of ZnO-Cellulose Nanocomposites.
ZnO-cellulose nanocomposites are prepared by mixing nanocrystalline cellulose (NCC) colloids with ZnAc2·2H2O alkaline solution by ultrasound assisted approach. The sample is characterized by X-ray diffraction, Scanning electron microscope (SEM), Transmission electron microscopy (TEM), Thermogravimetric analyzer (TGA), UV-Vis spectroscopy and spectrofluorometer. The results show that ZnO nanoparti...
http://www.polymer.cnt//ss/wangml/publicationsshow_5384.html |
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A Simple Optical Sequential Illumination for Microcantilever Array
There was an increasing research into developing microcantilever sensor in the biochemical, chemical and material research fields.Microcantilever array designed and used for sensing was the important direction in this research field. In this paper, an optical sequential illumination technique has been developed for real-time monitoring of the deflections of microcantilever arrays for sensing appli...
http://www.polymer.cnt//ss/mechpolymer/publicationsshow_3679.html |
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Optical emission from nano-MEH-PPV arrays
Using an anodic alumina membrane with an ordered nanopore array as a template, we have fabricated a two-dimensional light-emitting nanopolymer array by embedding the luminescence polymer MEH-PPV into the nanopores. It is revealed experimentally that the conformation of the MEH-PPV chains in the nanopores is in the form of a bunch of polymer chains. The number of the polymer chains in a bunch depen...
http://www.polymer.cnt//ss/kongfan/publicationsshow_1861.html |
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Electronic structures and optical properties of two anthracene derivatives
作者: Zhang P (Zhang Peng), Xia BH (Xia Baohui), Sun YH (Sun Yinghui), Yang B (Yang Bing), Tian WJ (Tian Wenjing), Wang Y (Wang Yue), Zhang G (Zhang Guo)
来源出版物: CHINESE SCIENCE BULLETIN 卷: 51 期: 20 页: 2444-2450 出版年: OCT 2006
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http://www.polymer.cnt//ss/tianwenjing/publicationsshow_912.html |
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Using an isolation chromophore to further improve the comprehensive performance of nonlinear optical (NLO) dendrimers
关键字：isolation chromophore, nonlinear optical dendrimer
By the combination of divergent and convergent approaches, through a powerful “click chemistry” reaction, a new series of dendrimers (G1-NS-TB to G3-NS-TB) were conveniently prepared with satisfactory yields, in which two types of chromophores with a regular AB structure were used to further improve their comprehensive performance. Due to the presence of an isolation chromophore, its perfect 3...
http://www.polymer.cn/research/sy_info17333 |
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