TY - JOUR
T1 - Large patternable metal nanoparticle sheets by photo/e-beam lithography
AU - Saito, Noboru
AU - Wang, Pangpang
AU - Okamoto, Koichi
AU - Ryuzaki, Sou
AU - Tamada, Kaoru
N1 - Funding Information:
This work was supported by the JSPS-NUS Joint Research Program, JSPS Program for Leading Graduate Schools, and the Cooperative Research Program of Network Joint Research Center for Materials and Devices. The authors SR, KT, and PW acknowledge financial support from JSPS KAKENHI Grant Numbers 15H05417,15K21208, and 26246005, respectively.
Publisher Copyright:
© 2017 IOP Publishing Ltd.
PY - 2017/10/4
Y1 - 2017/10/4
N2 - Techniques for micro/nano-scale patterning of large metal nanoparticle sheets can potentially be used to realize high-performance photoelectronic devices because the sheets provide greatly enhanced electrical fields around the nanoparticles due to localized surface plasmon resonances. However, no single metal nanoparticle sheet currently exists with sufficient durability for conventional lithographical processes. Here, we report large photo and/or e-beam lithographic patternable metal nanoparticle sheets with improved durability by incorporating molecular cross-linked structures between nanoparticles. The cross-linked structures were easily formed by a one-step chemical reaction; immersing a single nanoparticle sheet consisting of core metals, to which capping molecules ionically bond, in a dithiol ethanol solution. The ligand exchange reaction processes were discussed in detail, and we demonstrated 20 μm wide line and space patterns, and a 170 nm wide line of the silver nanoparticle sheets.
AB - Techniques for micro/nano-scale patterning of large metal nanoparticle sheets can potentially be used to realize high-performance photoelectronic devices because the sheets provide greatly enhanced electrical fields around the nanoparticles due to localized surface plasmon resonances. However, no single metal nanoparticle sheet currently exists with sufficient durability for conventional lithographical processes. Here, we report large photo and/or e-beam lithographic patternable metal nanoparticle sheets with improved durability by incorporating molecular cross-linked structures between nanoparticles. The cross-linked structures were easily formed by a one-step chemical reaction; immersing a single nanoparticle sheet consisting of core metals, to which capping molecules ionically bond, in a dithiol ethanol solution. The ligand exchange reaction processes were discussed in detail, and we demonstrated 20 μm wide line and space patterns, and a 170 nm wide line of the silver nanoparticle sheets.
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U2 - 10.1088/1361-6528/aa8930
DO - 10.1088/1361-6528/aa8930
M3 - Article
C2 - 28853710
AN - SCOPUS:85031095051
SN - 0957-4484
VL - 28
JO - Nanotechnology
JF - Nanotechnology
IS - 43
M1 - 435705
ER -