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Large current difference in Au-coated vertical silicon nanowire electrode array with functionalization of peptides

Ilsoo Kim1, So-Eun Kim1, Sanghun Han1, Hyungsuk Kim1, Jaehyung Lee1, Du-Won Jeong2, Ju-Jin Kim2, Yong-beom Lim1* and Heon-Jin Choi1*

1 Department of Materials Science and Engineering, Yonsei University, Seoul 120-749, Republic of Korea

2 Department of Physics, Chonbuk National University, Jeonju 561-756, Republic of Korea

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Nanoscale Research Letters 2013, 8:502  doi:10.1186/1556-276X-8-502

Published: 26 November 2013

Additional files

Additional file 1: Figure S1:

SEM images of 250 nm Au nanoparticles dispersed on the Si substrates. (a, b) 1 (Au nanoparticles) : 3 (DI water) solution. (c, d) 1 (Au nanoparticles) : 6 (DI water) solution. Figure S2. Scanning TEM images of the Si NW. (a) Energy dispersive scanning point of the Si NW. (b) Energy dispersive spectrum for each scanning point. Figure S3. (a) Schematic image of CV measurements system using Au film as a working electrode. (b) CV measurements of the Au film electrode in 100 mM K3Fe(CN)6. All CV measurements are taken with a scan rate of 20 mV/s. Figure S4. Schematic images of ion and electron transfer mechanism in the CV measurements system using Au film (a, b) and VSNEA (c, d) as a working electrode.

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