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Immersed nanospheres super-lithography for the fabrication of sub-70nm nanoholes with period below 700nm (EI CONFERENCE) 会议论文
2012 12th IEEE International Conference on Nanotechnology, NANO 2012, August 20, 2012 - August 23, 2012, Birmingham, United kingdom
Li S.; Shi L.; Yang Z.; Huang X.; Zhang Z.; Gao F.; Guo Y.; Yu W.; Du J.
收藏  |  浏览/下载：129/0  |  提交时间：2013/03/25
A maskless nano-lithography method by using polystyrene spheres (PSs) self-assembled on silver slab (NSSL) was proposed in [optics express  Vol. 16  No. 19 (2008) 14397]. Following that  to break the limitations in resolution and PSs period of NSSL method  in this paper  we present PSs immersed super-resolution lithography (NSISL) technology by embedding the PSs into appropriate material to improve the efficiency of the surface plasmon excitation. The energy modulating mechanism and the rules of the resolution affected by silver slab were studied by calculating and analysing the energy distribution. The curve of the lithography resolution versus the silver thickness was presented. In order to verify this method  contrast analysis was carried out with NSSL. The results show that the lithography resolution is improved efficiently. Taking a specific configuration with PS diameter of 600nm as an example  the resolution was improved to 54nm from 190nm with Ag thickness of 25nm. Based on the calculation results  we carried out the experiments. Nano holes with dimension of 75nm and period of 600nm were obtained. 2012 IEEE.  
A composite hardness stamp in 184 PDMS for nanostructures transfer in high fidelity (EI CONFERENCE) 会议论文
2012 12th IEEE International Conference on Nanotechnology, NANO 2012, August 20, 2012 - August 23, 2012, Birmingham, United kingdom
Li S.; Shi L.; Yang Z.; Huang X.; Zhang Z.; Gao F.; Guo Y.; Yu W.; Du J.
收藏  |  浏览/下载：13/0  |  提交时间：2013/03/25
To improve the fidelity of nanostructures in transfer process  a composite stamp with reasonable hardness distribution in 184 PDMS used to nanoimprint was studied. The stamp is composed of a stiff 184 PDMS structured layer and a soft 184 PDMS supporter layer. We studied the relationship between the hardness of the 184 PDMS and the proportion of each component in 184 PDMS. The appropriate components proportions of prepolymer and curing agent corresponding to the different region of the composite stamp were presented. The fabrication method of the stamp is also presented. Corresponding experiments were carried out by using this stamp. Kinds of nanostructures were transferred in one inch diameter area with good fidelity. The feature sizes of the structures were less than 100 nm. 2012 IEEE.  
Influence of Sensitizer Concentration on the Upconversion Luminescence of NaYF4: Yb3+, Er3+ Nanoparticles 会议论文
2012
Zhao J. W.; Shi D. M.; Zhao Y. G.; Kong X. G.
收藏  |  浏览/下载：9/0  |  提交时间：2013/03/28
Influence of sensitizer concentration on the upconversion luminescence of NaYF4: Yb3+, Er3+ nanoparticles (EI CONFERENCE) 会议论文
2012 2nd International Conference on Machinery, Materials Science and Engineering Applications, MMSE 2012, June 16, 2012 - June 17, 2012, Wuhan, China
Zhao J.; Shi D.; Zhao Y.; Kong X.
收藏  |  浏览/下载：14/0  |  提交时间：2013/03/25
A series of NaYF4: Yb3+  Er3+ nanoparticles with different doping concentration were successfully prepared by the combination of coprecipitation and hydrothermal methods using sodium citrate as chelator. Upconversion luminescence can be observed in all of the samples at room temperature. Fixed the Er3+ concentration with 1 mol% unchanged  the effect of the Yb3+ concentration on the upconversion luminescence of NaYF4: Yb3+  Er3+ samples were studied when the doped Yb3+ concentrations were 0 mol%  1 mol%  2 mol%  5 mol%  10 mol% and 20 mol%  respectively. As increasing the Yb 3+ concentration  the total intensity of the upconversion luminescence of the samples is increasing while the ratio of red to green emission increases firstly and then decreases. The maximum ratio value is 22.1 when the Yb3+ concentration is 10 mol%. It is found that the cross relaxation and cooperative sensitization effect are the reasons for the phenomenon above. (2012) Trans Tech Publications.  
VIROLOGICAL BREAKTHROUGH AND GENOTYPIC RESISTANCE IN A RANDOMIZED, CONTROLLED STUDY ON TELBIVUDINE TREATMENT APPLYING ROADMAP CONCEPT IN CHB: W76 INTERIM ANALYSIS OF EFFORT STUDY 会议论文
作者:  Cheng, J.;  Yu, Y.;  Wang, H.;  Xu, M.;  Shi, G.
收藏  |  浏览/下载：4/0  |  提交时间：2019/12/05
Expression of ALDH1 in metastasizing axillary Iymphnodes in breast cancer 会议论文
作者:  Shi, A.;  Dong, Y.;  Bi, L.;  Xu, N.;  Fan, Z.
收藏  |  浏览/下载：2/0  |  提交时间：2019/12/05
Study of the horizontal crack of hard rock or sprayed concrete on high sidewall of large underground cavern 会议论文
Beijing, PEOPLES R CHINA, OCT 14-16, 2011
作者:  Jiang, Q.;  Feng, X. T.;  Shi, C. P.;  Jing, C.;  Jiang, Y. J.
收藏  |  浏览/下载：12/0  |  提交时间：2018/06/05
Simulation of tunnel excavation in fractured rock masses using extended finite element method 会议论文
Beijing, PEOPLES R CHINA, OCT 14-16, 2011
作者:  Zhang, Y. L.;  Shi, M. M.
收藏  |  浏览/下载：15/0  |  提交时间：2018/06/05
J(sc) Improvement of CdS/Cu(In,Ga)Se-2 Solar Cells After Rapid Thermal Annealing 会议论文
2012 38TH IEEE PHOTOVOLTAIC SPECIALISTS CONFERENCE (PVSC)
作者:  Chen, D. S.[1];  Yang, J.[2];  Xu, F.[3];  Du, H. W.[4];  Shi, J. W.[5]
收藏  |  浏览/下载：3/0  |  提交时间：2019/04/30
Growth of high quality ZnMgO films on diamond substrates 会议论文
18TH INTERNATIONAL VACUUM CONGRESS (IVC-18), 2012-01-01
作者:  Tang, K.[1];  Wang, L. J.[2];  Huang, J.[3];  Xu, R.[4];  Zhang, J. J.[5]
收藏  |  浏览/下载：6/0  |  提交时间：2019/04/30

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