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浏览/检索结果: 共10条,第1-10条 帮助

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Batch production of uniform graphene films via controlling gas-phase dynamics in confined space 期刊论文  OAI收割
Nanotechnology, 2020, 卷号: 32, 期号: 10
作者:  
Zhang,Yongna;  Huang,Deping;  Duan,Yinwu;  Chen,Hui;  Tang,Linlong
  |  收藏  |  浏览/下载:51/0  |  提交时间:2021/02/24
GaN based UV-LEDs with Ni/Au Nanomeshes as Transparent p-type Electrodes 期刊论文  OAI收割
PHYSICA STATUS SOLIDI A-APPLICATIONS AND MATERIALS SCIENCE, 2019, 卷号: 216, 期号: 4
作者:  
Sheikhi, Moheb;  Xu, Houqiang;  Jiang, Jie'an;  Wu, Sudong;  Yang, Xi
  |  收藏  |  浏览/下载:59/0  |  提交时间:2019/12/18
Solvothermal synthesis of luminescent Eu(BTC)(H2O)DMF hierarchical architectures 期刊论文  OAI收割
crystengcomm, 2012, 卷号: 14, 期号: 8, 页码: 2914-2919
Xu BA; Guo HL; Wang S; Li YY; Zhang HJ; Liu CG
收藏  |  浏览/下载:26/0  |  提交时间:2013/06/30
Effect of thickness on the structural, electrical and optical properties of ZnO films deposited by MBE (EI CONFERENCE) 会议论文  OAI收割
2011 International Conference on Advanced Design and Manufacturing Engineering, ADME 2011, September 16, 2011 - September 18, 2011, Guangzhou, China
Yang X.; Su S.; Yi X.; Mei T.
收藏  |  浏览/下载:25/0  |  提交时间:2013/03/25
A set of ZnO films of different thickness have been deposited on sapphire substrates using molecular beam epitaxy (MBE) by varying the growth time and the effect of film thickness on the structural  electrical and optical properties have been investigated. The X-ray diffraction (XRD) results indicate that the full width at half maximum (FWHM) of the (002) diffraction peak is decreased as the film thickness increasing  and the stress along c-axis is stable. Scanning electron microscope (SEM) measurement shows that the grains become more uniform as the film grows thicker and the film surface present distinct hexagon shape as the film is grown up to a thickness of 500nm. The optical absorbance  Hall mobility and photoluminescence (PL) intensity are increased in accordance with the thickness of the film. (2011) Trans Tech Publications  Switzerland.  
Delaying premature local necking of high-strength Cu: A potential way to enhance plasticity 期刊论文  OAI收割
Scripta Materialia, 2011, 卷号: 64, 期号: 1, 页码: 13-16
H. S. Liu; B. Zhang; G. P. Zhang
收藏  |  浏览/下载:23/0  |  提交时间:2012/04/13
Effect of dispersion medium and dominated evaporation on the pattern formation of colloidal suspension 会议论文  OAI收割
2011 International Academic Conference on Machinery, Materials Science and Engineering Applications, MMSE 2011, Wuhan, China, JUL 15-16, 2011
作者:  
Ma WJ(马文杰);  Wang YR(王育人);  Ma WJ;  Ma WJ
收藏  |  浏览/下载:27/0  |  提交时间:2013/02/26
Ultraviolet photodetector fabricated from atomic-layer-deposited ZnO films (EI CONFERENCE) 会议论文  OAI收割
Shan C. X.; Zhang J. Y.; Yao B.; Shen D. Z.; Fan X. W.; Choy K. L.
收藏  |  浏览/下载:25/0  |  提交时间:2013/03/25
Zinc oxide (ZnO) films have been prepared on glass substrate in layer-by-layer mode using an atomic-layer deposition (ALD) technique  and a metal-semiconductor-metal structured photodetector has been fabricated on the ZnO films employing interdigital Au as metal contacts. The photodetector shows a cutoff wavelength at around 390 nm and has an obvious responsivity in the whole UVA spectral range. Because the response of the ZnO photodetector covers the whole UV solar irradiation that can reach the earth  the photodetector promises to be useful in monitoring UV solar irradiation to protect people from harm caused by the solar irradiation. Furthermore  the capability of preparing large-area uniform ZnO films of ALD makes it favorable for possible mass production of this kind of photodetector. 2009 American Vacuum Society.  
The synthesis and field emission property of carbon nanotubes on carbon fibers substrate (EI CONFERENCE) 会议论文  OAI收割
Technical Digest of the 20th International Vacuum Nanoelectronics Conference, IVNC 07, July 8, 2008 - July 12, 2008, Chicago, IL, United states
Leyong Z.; Weibiao W.; Jingqiu L.; Yuxue X.; Da L.; Song C.; Haifeng Z.
收藏  |  浏览/下载:33/0  |  提交时间:2013/03/25
Using ferrocene as catalyst precursor  C2H2 as carbon source  carbon nanotubes (CNTs) with uniform density were synthesized on carbon fibers substrate by floating catalyst method. The morphology and microstructure were characterized by field emission scanning electron microscope (FESEM) and high-resolution transmission electron microscopy (HRTEM). The observation showed that the length of CNTs is about 2 m  the average space between adjacent CNTs is about 300 nm and the diameter of CNT is about 45 nm. The less dense "short and stubby" aligned CNTs films should have good electron field emission characteristics. The results of field emission showed that the emission current of CNTs/carbon fibers was 5 A at the field of 2.5 V/m  and the emission current can be 280 A with a field of 7 V/m (the specimen area is 0.25 cm2 and the distance between cathode and anode is 200 m). The calculation based on the F-N plot indicated that the field enhancement factor of CNTs tip is 499122. Using the conductivity and chemical stability of carbon fibers and the uniform and sparse density distribution of CNTs on carbon fibers substrate  the tip predominance of carbon nanotubes can be exerted  and simultaneously the effect of screening effects between adjacent carbon nanotubes on the field emission performance can also be effectively decreased. The CNTs synthesized on carbon fibers substrate has many predominances for the fabrication of cold cathode devices. For example  using the removability of carbon fibers  the cathode of CNTs/carbon fibers can be arbitrarily moved  enlaced or combined to form different patterns  and the cathode of CNTs/carbon fibers can be also fabricated in large size. Therefore  CNTs/carbon fibers may have potential application in field emission displays.  
Microstructure characterization of single-crystal ZnO nanorods synthesized by solvothermal at low temperature 期刊论文  OAI收割
Journal of Materials Science & Technology, 2007, 卷号: 23, 期号: 5, 页码: 583-586
C. Yang; Y. Li; G. Xu; X. Ma
收藏  |  浏览/下载:21/0  |  提交时间:2012/04/13
Effect of dopant concentration on photocatalytic activity of TiO2 film doped by Mn non-uniformly 期刊论文  OAI收割
central european journal of chemistry, 2006, 卷号: 4, 期号: 2, 页码: 234-245
Zhang KJ (Zhang, Kaijian); Xu W (Xu, Wei); Li XJ (Li, Xinjun); Zheng SJ (Zheng, Shaojian); Xu G (Xu, Gang)
收藏  |  浏览/下载:358/76  |  提交时间:2010/09/30