نتایج جستجو برای: پراکندگی اندازه بلورها cds

تعداد نتایج: 98275  

Journal: :international journal of nanoscience and nanotechnology 2010
p. sharma s. singh h. s.virk

cadmium sulphide (cds) nanoparticles were prepared using microemulsion method using cadmium chloride as cadmium source and sodium sulphide as sulphur source. the obtained nanoparticles structures were characterized by x-ray diffraction (xrd) and transmission electron microscopy (tem) whereas optical characterization was done by ultra violet-visible absorption. xrd result shows that cds nanopart...

ژورنال: علوم زمین 2012
داود رئیسی, سارا درگاهی, سید حسام الدین معین زاده محسن آروین,

گندم بریان نوعی سرتخت (Messa) پوشیده از روانه‌های گدازه‌ای بسیار تیره رنگ است که به عنوان بخشی از فعالیت‌آتشفشانی زمان کواترنری ایران شناخته می‌شود. این روانه‌ها که از نوع آلکالی الیوین بازالت‌های سالم یا با دگرسانی کم هستند حدود 480 کیلومتر مربع از بخش جنوبی کویر لوت در شمال خاور کرمان را در برمی‌گیرند. بافت کلی جریان‌های بازالتی پورفیری تا گلومروپورفیری با زمینه اینترسرتال تا اینترگرانولار اس...

Journal: :Journal of the American Chemical Society 2009
Nishshanka N Hewa-Kasakarage Maria Kirsanova Alexander Nemchinov Nickolas Schmall Patrick Z El-Khoury Alexander N Tarnovsky Mikhail Zamkov

We report on organometallic synthesis of luminescent (ZnSe/CdS)/CdS semiconductor heterostructured nanorods (hetero-NRs) that produce an efficient spatial separation of carriers along the main axis of the structure (type II carrier localization). Nanorods were fabricated using a seeded-type approach by nucleating the growth of 20-100 nm CdS extensions at [000 +/- 1] facets of wurtzite ZnSe/CdS ...

2015
Qizhao Wang Juhong Lian Jiajia Li Rongfang Wang Haohao Huang Bitao Su Ziqiang Lei

Morphology-controlled synthesis of CdS can significantly enhance the efficiency of its photocatalytic hydrogen production. In this study, a novel three-dimensional (3D) flower-like CdS is synthesized via a facile template-free hydrothermal process using Cd(NO3)2•4H2O and thiourea as precursors and L-Histidine as a chelating agent. The morphology, crystal phase, and photoelectrochemical performa...

2017
Jin-Chuan Duan

Corporate credit default swap (CDS) premium is the market price of credit risk posed by a corporate obligor. Although corporate CDS are commonly used for risk benchmarking in accounting and credit risk management, liquid CDS are limited to less than 500 corporate names globally. CDS users must either confine their usage to this limited subset or resort to aggregates derived from the liquid CDS ...

2002
V. R. Sinha Amita Nanda Rachna Kumria

cyclodextrins (CDs) is a practical and economical way to improve the physicochemical and pharmaceutical properties of administered drug molecules. CDs can improve properties such as solubility, stability, and bioavailability of various drugs, thereby potentially serving as novel drug carriers. In addition, the hydrophobic and ionizable derivatives of CDs are being tested for use in the preparat...

2016
Yuan-Chang Liang Cheng-Chia Chung Ya-Ju Lo Chein-Chung Wang

The ZnO-CdS core-shell composite nanorods with CdS shell layer thicknesses of 5 and 20 nm were synthesized by combining the hydrothermal growth of ZnO nanorods with the sputtering thin-film deposition of CdS crystallites. The microstructures and optical properties of the ZnO-CdS nanorods were associated with the CdS shell layer thickness. A thicker CdS shell layer resulted in a rougher surface ...

Journal: :Nanoscale 2014
Mingye Sun Songnan Qu Zhendong Hao Wenyu Ji Pengtao Jing Hong Zhang Ligong Zhang Jialong Zhao Dezhen Shen

A new type of environmentally friendly phosphor based on carbon nanodots (CDs) has been developed through the dispersion of CDs by integrating the CDs with starch particles. The starch particles contain large numbers of hydroxyl groups around the surfaces, which can effectively absorb the CDs, whose surfaces are functionalized by lots of carboxyl and amide groups, through hydrogen bonding. Effe...

2016
Patrick C. Mathias Peter Tarczy-Hornoch Brian H. Shirts

Clinical decision support (CDS) within the electronic health record represents a promising mechanism to provide important genomic findings within clinical workflows. To better understand the current and possible future costs of genomic CDS, we leveraged our local CDS experience to assemble a simple model with inputs such as initial cost and numbers of patients, rules, and institutions. Our mode...

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