Chem. J. Chinese Universities ›› 2014, Vol. 35 ›› Issue (5): 1106.doi: 10.7503/cjcu20130946

• Polymer Chemistry • Previous Articles     Next Articles

Fabrication of the Columnar Structure with Gold Nanobowl Arrays Based on Colloidal Lithography

XUE Peihong1,3, WANG Tieqiang2,3,*(), AI Bin3, YE Shunsheng3, LI Dongfeng1,*(), ZHANG Junhu3   

  1. 1. School of Chemistry and Bioscience, Changchun University of technology, Changchun 130012, China
    2. Research Center for Molecular Science and Engineering, College of Science,Northeastern University, Shenyang 110004, China
    3. State Key Laboratory of Supramolecular Structure and Materials, College of Chemistry,Jilin University, Changchun 130012, China
  • Received:2013-09-25 Online:2014-05-10 Published:2014-04-14
  • Contact: WANG Tieqiang,LI Dongfeng E-mail:caswtq@163.com;lidongfeng@mail.ccut.edu.cn

Abstract:

A novel method was developed to fabricate the structure of a bowl on the top of column on nano/micro scale by selectively etching the photoresist oligomer film using the silica microspheres as masks. The gold nanobowl was formed on the top of the columnar structure as depositing a layor of Au on the surface of sample. By adjusting etching time, the dimension of columnar structure can be controlled. The characteristic transmission band of the material shows a obvious red shift from 500 nm to 760 nm when the height of the columnar structure increases. To investigate the optical property caused by the unique structure and the distribution of electric field around the noble metal, the method of the finite difference time domain was used. The high intensity of electric field was found at the edges and bottom of the gold nanobowl, which is the main influencing factor of the red shift.

Key words: Colloidal crystal, Plasma etching, Photoresist oligomer, Gold nanobowl, Surface plasmon resonance

CLC Number: 

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