نتایج جستجو برای: Ultrathin

تعداد نتایج: 7925  

 In the last decade, Si(100) has been used as a suitable substrate in field effect transistors. Some issues such as leakage current and tunneling current through the ultrathin films have been increased with shrinking the electronic devices – particularly, field effect transistors – to nanoscale, which is threatening more use of Si(100). We have thus demonstrated a series of experiments to grow ...

2015
Kazunari Shinbo Keizo KATO

His professional expertise encompasses electrical and electronic materials, electronic devices, organic ultrathin films, organic devices, and molecular electronics. His current research subjects are (1) fabrication and evaluation of organic ultrathin films, (2) optical and electrical properties of organic ultrathin films, (3) functional design and control of organized molecular ultrathin films,...

2016
Yangyang Guo Zhijun Zhang Gangqiang Zhu Weibin Zhang Woochul Yang

BiOCl:Eu ultrathin nanosheets were synthesized through a facile solvothermal method with the assistance of polyvinyl pyrrolidone. The ultrathin nanosheets showed a size ranging from 50–100 nm and a height of 2.9 nm, which is about four [Cl–Bi–O–Bi–Cl] layers. In addition, the luminescence properties and mechanism were investigated in detail, and compared with that of the nanoplate. It was found...

Journal: :Chemical communications 2015
Wei Jia Yuxi Liu Pengfei Hu Rong Yu Yu Wang Lei Ma Dingsheng Wang Yadong Li

Ultrathin copper oxide (CuO) nanorods with diameters of ∼3.6 nm were obtained in one step using oleylamine (OAm) as both the solvent and the surface controller. The oriented attachment is responsible for the formation of the ultrathin CuO nanorods. Furthermore, this ultrathin nanostructure catalyst exhibited excellent activity and high styrene oxide yields in styrene epoxidation.

2014
Ying Wang Weijin Chen Biao Wang Yue Zheng

Ultrathin ferroelectric films are of increasing interests these years, owing to the need of device miniaturization and their wide spectrum of appealing properties. Recent advanced deposition methods and characterization techniques have largely broadened the scope of experimental researches of ultrathin ferroelectric films, pushing intensive property study and promising device applications. This...

Journal: :Physical chemistry chemical physics : PCCP 2013
Qinyou An Qiulong Wei Liqiang Mai Jiayang Fei Xu Xu Yunlong Zhao Mengyu Yan Pengfei Zhang Shizhe Huang

Ultrathin V2O5 nanosheets were successfully prepared through supercritical solvothermal reaction followed by annealing treatment. The formation of ultrathin nanosheets is owing to Ostwald ripening and the effect of supercritical fluids. As cathode material for lithium batteries, the ultrathin V2O5 nanosheets exhibit a capacity of 108 mA h g(-1) at a high rate of up to 10 C at 2.4-4 V and excell...

2002
M. Hayashi T. Katayama M. Taninaka A. Thiaville

It is supposed that an ultrathin film has an electronic structure which is different from the bulk state. So far many theoretical and experimental works have been done on the electronic structures of ultrathin films [ 11. However only a few works have been reported in the field of the magneto-optical effect of thin ferromagnetic films except for SMOKE [2]. Recently, we found a new magneto-optic...

2014
Chuanwei Huang Lang Chen

In functional oxide films, different electrical/mechanical boundaries near film surfaces induce rich phase diagrams and exotic phenomena. In this paper, we review some key points which underpin structure, phase transition and related properties in BiFeO₃ ultrathin films. Compared with the bulk counterparts, we survey the recent results of epitaxial BiFeO₃ ultrathin films to illustrate how the a...

Journal: :Analytical sciences : the international journal of the Japan Society for Analytical Chemistry 2015
Yuki Kitazumi Katsumi Hamamoto Tatsuo Noda Osamu Shirai Kenji Kano

The fabrication of ultrathin-ring electrodes with a diameter of 2 mm and a thickness of 100 nm is established. The ultrathin-ring electrodes provide a large density of pseudo-steady-state currents, and realize pseudo-steady-state amperometry under quiescent conditions without a Faraday cage. Under the limiting current conditions, the current response at the ultrathin-ring electrode can be well ...

Journal: :Chemistry 2016
Meihua Wang Zhe Gao Bin Zhang Huimin Yang Yan Qiao Shuai Chen Huibin Ge Jiankang Zhang Yong Qin

Metal-support interfaces play a prominent role in heterogeneous catalysis. However, tailoring the metal-support interfaces to realize full utilization remains a major challenge. In this work, we propose a graceful strategy to maximize the metal-oxide interfaces by coating confined nanoparticles with an ultrathin oxide layer. This is achieved by sequential deposition of ultrathin Al2 O3 coats, P...

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