pH-Sensitive Photoinduced Energy Transfer from Bacteriorhodopsin to Single-Walled Carbon Nanotubes in SWNT–bR Hybrids

ACS Nano ◽  
2013 ◽  
Vol 7 (10) ◽  
pp. 8743-8752 ◽  
Author(s):  
Karim El Hadj ◽  
Patricia Bertoncini ◽  
Olivier Chauvet
Keyword(s):  
Carbon Nanotubes ◽  
Energy Transfer ◽  
Single Walled Carbon Nanotubes ◽  
Ph Sensitive ◽  
Single Walled Carbon ◽  
Walled Carbon Nanotubes

Scattering Process of Gas Molecules on Vertically Aligned Single-Walled Carbon Nanotubes

2009 ◽  
Author(s):  
Ikuya Kinefuchi ◽  
Yushi Harada ◽  
Jumpei Kawasaki ◽  
Kei Ishikawa ◽  
Junichiro Shiomi ◽  
...  
Keyword(s):  
Carbon Nanotubes ◽  
Energy Transfer ◽  
Single Walled Carbon Nanotubes ◽  
Accommodation Coefficient ◽  
Scattering Process ◽  
Single Walled Carbon ◽  
Energy Accommodation ◽  
Vertically Aligned ◽  
Gas Molecules ◽  
Walled Carbon Nanotubes

Scattering process of helium molecules on vertically aligned single-walled carbon nanotubes (VA-SWNTs) was investigated using the molecular beam technique. The samples were grown by alcohol catalytic CVD method and their thicknesses were approximately 0.1 and 4 μm. We found that the modification of quartz surface with VA-SWNT films significantly enhances the energy transfer between gas molecules and the surface at room temperature and makes the energy accommodation coefficient of helium, which tends to be small even for contaminated surfaces because of the large mass mismatch between helium and surface atom, close to unity. The high porosity of the film enables gas molecules to penetrate into the film and suffer multiple collisions with carbon nanotubes (CNTs), leading to the efficient energy transfer. Although the accommodation coefficient slightly decreases for the thinner film, it is still high enough for practical applications. Our results demonstrate a potential application of VA-SWNTs as nanoscale fin structures to enhance heat transfer between gas phase and solid surfaces in rarefied gas flows. As the surface temperature increases, however, the energy accommodation becomes less efficient. This would be attributed to the small adsorption energy, which could reduce the trapping probability of helium on CNT bundles.

Doping-Dependent Energy Transfer from Conjugated Polyelectrolytes to (6,5) Single-Walled Carbon Nanotubes

2019 ◽  
Vol 123 (36) ◽  
pp. 22680-22689
Author(s):  
Merve Balcı Leinen ◽  
Felix J. Berger ◽  
Patrick Klein ◽  
Markus Mühlinghaus ◽  
Nicolas F. Zorn ◽  
...  
Keyword(s):  
Carbon Nanotubes ◽  
Energy Transfer ◽  
Single Walled Carbon Nanotubes ◽  
Conjugated Polyelectrolytes ◽  
Single Walled Carbon ◽  
Walled Carbon Nanotubes
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