نتایج جستجو برای: nanostructured coating

تعداد نتایج: 53101  

2014
Shuanglei Yang Zhaohui Wu LanPing Huang Banghong Zhou Mei Lei Lingling Sun Qingyong Tian Jun Pan Wei Wu Hongbo Zhang

Understanding the correlation between physicochemical properties and morphology of nanostructures is a prerequisite for widespread applications of nanomaterials in environmental application areas. Herein, we illustrated that the uniform-sized SnO2@C hollow nanoparticles were large-scale synthesized by a facile hydrothermal method. The size of the core-shell hollow nanoparticles was about 56 nm,...

2015
R. Haarindraprasad U. Hashim Subash C. B. Gopinath Mohd Kashif P. Veeradasan S. R. Balakrishnan K. L. Foo P. Poopalan Yogendra Kumar Mishra

The performance of sensing surfaces highly relies on nanostructures to enhance their sensitivity and specificity. Herein, nanostructured zinc oxide (ZnO) thin films of various thicknesses were coated on glass and p-type silicon substrates using a sol-gel spin-coating technique. The deposited films were characterized for morphological, structural, and optoelectronic properties by high-resolution...

2013
Renyun Zhang Henrik A. Andersson Mattias Andersson Britta Andres Håkan Edlund Per Edström Sverker Edvardsson Sven Forsberg Magnus Hummelgård Niklas Johansson Kristoffer Karlsson Hans-Erik Nilsson Magnus Norgren Martin Olsen Tetsu Uesaka Thomas Öhlund Håkan Olin

The coating of thin films is applied in numerous fields and many methods are employed for the deposition of these films. Some coating techniques may deposit films at high speed; for example, ordinary printing paper is coated with micrometre-thick layers of clay at a speed of tens of meters per second. However, to coat nanometre thin films at high speed, vacuum techniques are typically required,...

Journal: :Chemical communications 2015
Dongdong Li Yuping Zhang Zhiying Fan Jihong Yu

Mesoporous silica nanoparticles functionalised with aggregation-induced emission (AIE) luminogen via a carbon-nitrogen double bond are fabricated into films by a dip-coating method. The as-made films can serve as efficient fluorescent sensors for the naked-eye detection of volatile acid gases by colour and emission changes, as well as for the detection of 2,4-dinitrotoluene vapours by fluoresce...

Journal: :Dalton transactions 2015
Gengping Wan Guizhen Wang Xianqin Huang Haonan Zhao Xinyue Li Kan Wang Lei Yu Xiange Peng Yong Qin

An elegant atomic layer deposition (ALD) method has been employed for controllable preparation of a uniform Fe3O4-coated ZnO (ZnO@Fe3O4) core-shell flower-like nanostructure. The Fe3O4 coating thickness of the ZnO@Fe3O4 nanostructure can be tuned by varying the cycle number of ALD Fe2O3. When serving as additives for microwave absorption, the ZnO@Fe3O4-paraffin composites exhibit a higher absor...

2015
Dan Sun Yifan Jiang Haiyan Wang Yan Yao Guoqing Xu Kejian He Suqin Liu Yougen Tang Younian Liu Xiaobing Huang

Poor cycling performance arising from the instability of anode is still a main challenge for aqueous rechargeable lithium batteries (ARLB). In the present work, a high performance LiTi2(PO4)3/C composite has been achieved by a novel and facile preparation method associated with an in-situ carbon coating approach. The LiTi2(PO4)3/C nanoparticles show high purity and the carbon layer is very unif...

2013
K. Polychronopoulou C. Rebholz J. Neidhardt C. Mitterer

The composition, nanostructure, tribological and corrosion behaviour of reactive arc evaporated CrBxNy coatings have been studied and compared to CrN. The CrBxNy coatings were deposited on a commercial Oerlikon Balzers RCS coating system employing 80:20 Cr:B targets. To vary the composition, the nitrogen fraction was adjusted (N2 fraction = N2/(Ar + N2)) and a moderate bias voltage of –20 V was...

Journal: :Physical chemistry chemical physics : PCCP 2015
Jeesoo Seok Ka Yeon Ryu Jin Ah Lee Inyoung Jeong Nam-Suk Lee Jeong Min Baik Joo Gon Kim Min Jae Ko Kyungkon Kim Myung Hwa Kim

We introduce a facile approach to use ruthenium dioxide (RuO2) and ruthenium (Ru) nanostructures as effective counter electrodes instead of using platinum (Pt) for dye-sensitized solar cells (DSSCs). RuO2 and Ru nanostructure layers on the FTO glass can be readily prepared by a simple annealing process followed by the spin coating process of the mixture solution containing amorphous RuO2·xH2O p...

2015
Nader Shehata Michael Clavel Kathleen Meehan Effat Samir Soha Gaballah Mohammed Salah

This paper discusses the effect of adding reduced erbium-doped ceria nanoparticles (REDC NPs) as a coating on silicon solar cells. Reduced ceria nanoparticles doped with erbium have the advantages of both improving conductivity and optical conversion of solar cells. Oxygen vacancies in ceria nanoparticles reduce Ce4+ to Ce3+ which follow the rule of improving conductivity of solar cells through...

Journal: :ACS nano 2014
Jessamyn A Fairfield Carlos Ritter Allen T Bellew Eoin K McCarthy Mauro S Ferreira John J Boland

Networks comprised of randomly oriented overlapping nanowires offer the possibility of simple fabrication on a variety of substrates, in contrast with the precise placement required for devices with single or aligned nanowires. Metal nanowires typically have a coating of surfactant or oxide that prevents aggregation, but also prevents electrical connection. Prohibitively high voltages can be re...

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