美国加州大学Yadong Yin教授12月21下午学术报告

发布时间:2012-12-20访问量:72设置

报告人:Yadong Yin,教授

 

Department of Chemistry

University of California

Riverside, CA 92521-0403

Tel: (951)827-4965; Fax: (951)827-4713

E-mail: yadong.yin@ucr.edu

Web: http://faculty.ucr.edu/~yadongy/

 

题目Magnetic Assembly of Responsive Photonic Nanostructures

 

时间:20121221日(星期五)下午2:00

地点: 910号楼208

 

摘要:

We exploit magnetic field as an effective stimulus to guide the assembly of colloidal building blocks into periodically arranged photonic nanostructures and then reversibly tune the photonic properties by manipulating the external magnetic field.  The instant creation of a strong interparticle magnetic dipole-dipole interaction, which balances interparticle repulsive interactions such as the electrostatic force, provides the driving force for rapid assembly of superparamagnetic colloidal particles into dynamic photonic chains typically within one second.  Magnetic forces, acting remotely over a large distance, not only drive the formation of colloidal photonic arrays with a wide range of interparticle spacing, but also allow convenient control of the photonic properties of the colloidal assemblies by changing the interparticle separation or their orientation.  This magnetic assembly approach can be extended to rapidly organize nonmagnetic particles into photonic structures or other well-defined secondary structures through the "magnetic hole" strategy, which greatly broadens the applicability to different materials.  Finally, by taking advantage of the magnetic assembly approach, we demonstrate various applications such as field-responsive display, structural color printing, and anti-counterfeiting devices.

 

个人简历:

Research Area:        Materials Chemistry/ Inorganic Chemistry/ NanoScience/ Colloidal Chemistry

 

Education:

1999–2002   Ph.D. University of Washington                         

1996–1998   M.S. University of Science and Technology of China     

1992–1996   B.S. University of Science and Technology of China                    

 

Professional Career and Honors

2012–present      Editorial Advisory Board Member of Advanced Functional Materials

2011–present      Editorial Advisory Board Member of NPG Asia Materials

2011–present       Associate Professor, University of California, Riverside

2006–2011   Assistant Professor, University of California, Riverside

2005–2006          Staff Scientist, Lawrence Berkeley National Laboratory,

2003–2005          Postdoctoral Fellow, University of California at Berkeley and Lawrence Berkeley National Laboratory

Awards:

2011     Top 100 chemists (#55) and Top 100 Materials Scientists (#2) in the world 2000-2010, Ranked by Citation Impact, Thomson Reuters

2010     DuPont Young Professor Grant

2010     3M Nontenured Faculty Grant

2010     Distinguished Junior Faculty Award, Chinese-American Chemistry Professor Association

2010     Faculty Early Career Development (CAREER) award, National Science Foundation

2010     LabAutomation2010 Academic Travel Award, the Association for Laboratory
Automation

2009     Cottrell Scholar Award, Research Corporation for Science Advancement

2008     The Robert T. Poe Faculty Development Grant, Chinese-American Faculty Association of Southern California

2007     Regents’ Faculty Fellowship, University of California

 

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