Abstract
Acicular tin dioxide (SnO2) rods (1-2 mm in diameter, 5-20 mm long) were assembled and fused on the patterned gold electrode by an optical tweezer. In addition, the electrical contact between the assembled SnO 2 rod and the gold electrode was improved by laser curing of gold nanoparticles and the subsequent sintering in the oven. Here, the nanoparticles covered the entire area of the assembled SnO2 rod by evaporating a droplet of nanoparticle solution dripped on the assembled SnO2 rod. Subsequently, nanoparticles near the contact area between the rod and electrode were locally cured by direct heating with a focused infrared laser beam, which induced desorption of the surface monolayer. Therefore, the cured gold nanoparticles could be sintered after the non-laser irradiated nanoparticles were cleaned by the initial solvent application. Without sintering of the nanoparticles, the resistance of the assembled SnO2 rod was measured over several Mσ. After the nanoparticle sintering it could be reduced to a few hundred kσ, which was in agreement with the resistance of the assembled SnO2 rod.
| Original language | English |
|---|---|
| Journal | Japanese Journal of Applied Physics |
| Volume | 49 |
| Issue number | 5 PART 2 |
| DOIs | |
| Publication status | Published - 2010 May 1 |
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ASJC Scopus subject areas
- Engineering(all)
- Physics and Astronomy(all)
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Assembly of acircular SnO2 rod using optical tweezers and laser curing of metal nanoparticles. / Nam, Chanhyuk; Hong, Daehie; Chung, Jaeik; Chung, Jaewon; Hwang, Insung; Lee, Jong Heun; Ko, Seunghwan; Grigoropoulos, Costas P.
In: Japanese Journal of Applied Physics, Vol. 49, No. 5 PART 2, 01.05.2010.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Assembly of acircular SnO2 rod using optical tweezers and laser curing of metal nanoparticles
AU - Nam, Chanhyuk
AU - Hong, Daehie
AU - Chung, Jaeik
AU - Chung, Jaewon
AU - Hwang, Insung
AU - Lee, Jong Heun
AU - Ko, Seunghwan
AU - Grigoropoulos, Costas P.
PY - 2010/5/1
Y1 - 2010/5/1
N2 - Acicular tin dioxide (SnO2) rods (1-2 mm in diameter, 5-20 mm long) were assembled and fused on the patterned gold electrode by an optical tweezer. In addition, the electrical contact between the assembled SnO 2 rod and the gold electrode was improved by laser curing of gold nanoparticles and the subsequent sintering in the oven. Here, the nanoparticles covered the entire area of the assembled SnO2 rod by evaporating a droplet of nanoparticle solution dripped on the assembled SnO2 rod. Subsequently, nanoparticles near the contact area between the rod and electrode were locally cured by direct heating with a focused infrared laser beam, which induced desorption of the surface monolayer. Therefore, the cured gold nanoparticles could be sintered after the non-laser irradiated nanoparticles were cleaned by the initial solvent application. Without sintering of the nanoparticles, the resistance of the assembled SnO2 rod was measured over several Mσ. After the nanoparticle sintering it could be reduced to a few hundred kσ, which was in agreement with the resistance of the assembled SnO2 rod.
AB - Acicular tin dioxide (SnO2) rods (1-2 mm in diameter, 5-20 mm long) were assembled and fused on the patterned gold electrode by an optical tweezer. In addition, the electrical contact between the assembled SnO 2 rod and the gold electrode was improved by laser curing of gold nanoparticles and the subsequent sintering in the oven. Here, the nanoparticles covered the entire area of the assembled SnO2 rod by evaporating a droplet of nanoparticle solution dripped on the assembled SnO2 rod. Subsequently, nanoparticles near the contact area between the rod and electrode were locally cured by direct heating with a focused infrared laser beam, which induced desorption of the surface monolayer. Therefore, the cured gold nanoparticles could be sintered after the non-laser irradiated nanoparticles were cleaned by the initial solvent application. Without sintering of the nanoparticles, the resistance of the assembled SnO2 rod was measured over several Mσ. After the nanoparticle sintering it could be reduced to a few hundred kσ, which was in agreement with the resistance of the assembled SnO2 rod.
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UR - http://www.scopus.com/inward/citedby.url?scp=77952959991&partnerID=8YFLogxK
U2 - 10.1143/JJAP.49.05EA12
DO - 10.1143/JJAP.49.05EA12
M3 - Article
AN - SCOPUS:77952959991
VL - 49
JO - Japanese Journal of Applied Physics, Part 1: Regular Papers & Short Notes
JF - Japanese Journal of Applied Physics, Part 1: Regular Papers & Short Notes
SN - 0021-4922
IS - 5 PART 2
ER -