Rotation measurements of a thermally driven rotary nanomotor with a spring wing

Cai, Kun; Yu, Jin; Liu, Lingnan; Shi, Jing; Qin, Qing Hua

doi:10.1039/c6cp04359c

Cited by 30 publications

(14 citation statements)

References 30 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Due to the strong attraction, some of the argon atoms rotate together with the rotor. Hence, the rotary inertia of the “new rotor” becomes greater than that of the inner CNT 46 – 48 . Even when ρ = 400 kg/m 3 , the boundaries of the simulation box are very clear, i.e., few argon atoms are near the boundaries but more atoms are near the middle part of the rotor.…”

Section: Numerical Results and Discussionmentioning

confidence: 99%

Dynamic behavior of a rotary nanomotor in argon environments

Cai

Shi

et al. 2018

Sci Rep

Self Cite

View full text Add to dashboard Cite

When argon is used as a protecting gas in the fabrication or working environment of a nanodevice, absorption of some argon atoms onto the surface of the device lead to different responses. In this work, the rotation of the rotor in a carbon nanotube (CNT)-based rotary nanomotor in argon environment is investigated. In the rotary nanomotor, two outer CNTs act as the stator and are used to constrain the inner CNT (i.e., the rotor). The rotor is driven to rotate by the stator due to their collision during thermal vibration of their atoms. A stable rotational frequency (SRF) of the rotor occurs when the rotor reaches a dynamic equilibrium state. The value of the SRF decreases exponentially with an increase in the initial argon density. At dynamic equilibrium date, some of the argon atoms rotate synchronously with the rotor when they are absorbed onto either internal or external surface of the rotor. The interaction between the rest of the argon atoms and the rotor is stronger at higher densities of argon, resulting in lower values of the SRF. These principles provide insight for future experimentation and fabrication of such rotary nanomotor.

show abstract

Section: Numerical Results and Discussionmentioning

confidence: 99%

Dynamic behavior of a rotary nanomotor in argon environments

Cai

Shi

et al. 2018

Sci Rep

Self Cite

View full text Add to dashboard Cite

show abstract

“…To avoid the collapse of motor, one can increase the value of b , diameter of the rotor or reduce the distance between two stators. If possible, the ends on rotor should be hydrogenated4445 to avoid the generation of new bond between rotor and stator.…”

Section: Numerical Results and Discussionmentioning

confidence: 99%

Robust rotation of rotor in a thermally driven nanomotor

Cai

Shi

et al. 2017

Sci Rep

Self Cite

View full text Add to dashboard Cite

In the fabrication of a thermally driven rotary nanomotor with the dimension of a few nanometers, fabrication and control precision may have great influence on rotor’s stability of rotational frequency (SRF). To investigate effects of uncertainty of some major factors including temperature, tube length, axial distance between tubes, diameter of tubes and the inward radial deviation (IRD) of atoms in stators on the frequency’s stability, theoretical analysis integrating with numerical experiments are carried out. From the results obtained via molecular dynamics simulation, some key points are illustrated for future fabrication of the thermal driven rotary nanomotor.

show abstract

“…Other effects were observed, for example, motion can be influenced by thermal modulation [ 212 , 213 , 214 ], solutal and thermal buoyancy effects [ 215 ] and photochromic control of bubble-propelled motors by a spiropyran switch [ 216 ]. Huang et al used grating-structured walls for guiding empennages, which improved linear motion of microengines [ 217 ].…”

Section: Motion Control and Externally Powered Micromotorsmentioning

confidence: 99%

Geometry Design, Principles and Assembly of Micromotors

et al. 2018

View full text Add to dashboard Cite

Discovery of bio-inspired, self-propelled and externally-powered nano-/micro-motors, rotors and engines (micromachines) is considered a potentially revolutionary paradigm in nanoscience. Nature knows how to combine different elements together in a fluidic state for intelligent design of nano-/micro-machines, which operate by pumping, stirring, and diffusion of their internal components. Taking inspirations from nature, scientists endeavor to develop the best materials, geometries, and conditions for self-propelled motion, and to better understand their mechanisms of motion and interactions. Today, microfluidic technology offers considerable advantages for the next generation of biomimetic particles, droplets and capsules. This review summarizes recent achievements in the field of nano-/micromotors, and methods of their external control and collective behaviors, which may stimulate new ideas for a broad range of applications.

show abstract

Rotation measurements of a thermally driven rotary nanomotor with a spring wing

Cited by 30 publications

References 30 publications

Dynamic behavior of a rotary nanomotor in argon environments

Dynamic behavior of a rotary nanomotor in argon environments

Robust rotation of rotor in a thermally driven nanomotor

Geometry Design, Principles and Assembly of Micromotors

Contact Info

Product

Resources

About