TY - JOUR
T1 - Laser-Driven, Surface-Mounted Unidirectional Rotor
AU - Szekely, Joshua E.
AU - Amankona-Diawuo, Felix K.
AU - Seideman, Tamar
N1 - Funding Information:
The authors thank the Department of Energy (Award No. DEFG02-04ER15612/0011) and the National Science Foundation (Award No. DMR-1121262 to the Northwestern Materials Research Center) for support of this research.
Publisher Copyright:
© 2016 American Chemical Society.
PY - 2016/9/22
Y1 - 2016/9/22
N2 - We propose a design for a class of molecular rotors fixed to a semiconductor surface, induced by a moderately intense, linearly polarized laser pulse. The rotor consists of an organic molecule possessing a polarizable headgroup that is attached via a linear component to the surface. The polarization direction in parallel to the surface plane is determined so as to maximize the torque experienced by the molecular headgroup and, hence, the duration of the ensuing rotation, while also controlling the sense of rotation. We find that the molecule continues to rotate for many rotational periods after the laser pulse turns off, before multiple scattering by the potential barrier results in dephasing.
AB - We propose a design for a class of molecular rotors fixed to a semiconductor surface, induced by a moderately intense, linearly polarized laser pulse. The rotor consists of an organic molecule possessing a polarizable headgroup that is attached via a linear component to the surface. The polarization direction in parallel to the surface plane is determined so as to maximize the torque experienced by the molecular headgroup and, hence, the duration of the ensuing rotation, while also controlling the sense of rotation. We find that the molecule continues to rotate for many rotational periods after the laser pulse turns off, before multiple scattering by the potential barrier results in dephasing.
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U2 - 10.1021/acs.jpcc.6b05476
DO - 10.1021/acs.jpcc.6b05476
M3 - Article
AN - SCOPUS:84988592729
VL - 120
SP - 21133
EP - 21137
JO - Journal of Physical Chemistry C
JF - Journal of Physical Chemistry C
SN - 1932-7447
IS - 37
ER -