Vibrational energy transfer on hydrogen‐terminated vicinal Si(111) surfaces: Interadsorbate energy flow

1992 ◽  
Vol 96 (8) ◽  
pp. 6203-6212 ◽  
Author(s):  
M. Morin ◽  
P. Jakob ◽  
N. J. Levinos ◽  
Y. J. Chabal ◽  
A. L. Harris
Keyword(s):  
Energy Transfer ◽  
Energy Flow ◽  
Vibrational Energy ◽  
Vibrational Energy Transfer

scholarly journals Ultrafast Vibrational Energy Transfer from Photoexcited Carbon Nanotubes to Proteins

2019 ◽  
Vol 205 ◽  
pp. 05009
Author(s):  
Tomohito Nakayama ◽  
Shunsuke Yoshizawa ◽  
Atsushi Hirano ◽  
Takeshi Tanaka ◽  
Kentaro Shiraki ◽  
...  
Keyword(s):  
Carbon Nanotubes ◽  
Energy Transfer ◽  
Energy Flow ◽  
Vibrational Energy ◽  
Flow System ◽  
Protein Complexes ◽  
Vibrational Energy Transfer ◽  
Relaxation Dynamics ◽  
Biomedical Systems ◽  
Radial Breathing Modes

Carbon nanotube (CNT) and protein complexes are one of the most important nanomaterials in physical and biological fields, especially for building biomedical systems based on their unique electronic and optical properties. However, there is little knowledge about ultrafast vibrational phenomena and energy flow in CNT-protein complexes. Here, we study the ultrafast vibrational energy transfer (VET) from photoexcited carbon nanotubes to adsorbed materials, such as protein and surfactant, by observing relaxation dynamics of coherent radial breathing modes (RBMs) of CNT. As a result, we found the vibrational relaxation time of the RBMs depends on phonon density of states (PDOS) of adsorbed materials. Our findings are particularly useful for designing a highly efficient phonon energy flow system from photo-excited CNT to biomaterials, and such vibrational energy transfer can be controlled by the PDOS originated from the structure of coupled biomaterials.

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