Journal
APPLIED PHYSICS LETTERS
Volume 96, Issue 21, Pages -Publisher
AMER INST PHYSICS
DOI: 10.1063/1.3431741
Keywords
convection; gold; micromotors; molecular dynamics method; nanoparticles; nanoporous materials; polymers
Categories
Funding
- Office of Naval Research [N00014-07-1-0609]
- National Science Foundation [CMMI 0555275]
- Div Of Civil, Mechanical, & Manufact Inn
- Directorate For Engineering [1106487] Funding Source: National Science Foundation
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We report on the design, fabrication, and analysis of a light-driven micromotor. The micromotor was created from a nanoporous polymer with close-packed gold nanoparticles which generate heat by absorbing light. The blades of the micromotor were curved, forming convex and concave sides. Upon lateral irradiation, by geometric effect the convex side transfers more photon-generated heat to the surrounding gas molecules, causing a convective motion of gas and leading to the rotation of the micromotor. The light-driven motions of gas molecules were analyzed using molecular dynamics modeling. (C) 2010 American Institute of Physics. [doi:10.1063/1.3431741]
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