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US 12,398,702 B2Granted
Method and system using small molecule absorbers to create a photothermal actuator
AssigneeThe Regents of the University of Californi
InventorsChristopher John Bardeen, Brandon F. Lui
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Abstract
A photon-activated substance is disclosed, which includes a phase change material and a photon activated substance. The photon activated substance can be at least one of (2,6,6-Tetramethylpiperidin-1-yl)oxyl (TEMPO), azobenzene (AZOB), 4-Nitro-4-dimethylaminoazobenzene, Lumogen orange 240, and guaiazulene (GAZ).
Claims20
A photon-activated substance comprising:
- a phase change material and a photon activated substance wherein the photon activated substance is at least one of (2,2,6,6-Tetramethylpiperidin-1-yl)oxyl (TEMPO), azobenzene (AZOB), 4-Nitro-4-dimethylaminoazobenzene, Lumogen orange 240, azulene and guaiazulene (GAZ).
A wax motor comprising:
- a linear actuator configured to convert thermal energy into mechanical energy;
- a phase change material and
- a photon-activated substance of at least one of (2,2,6,6-Tetramethylpiperidin-1-yl)oxyl (TEMPO), azobenzene (AZOB), 4-Nitro-4-dimethylaminoazobenzene, Lumogen orange 240, azulene and guaiazulene (GAZ) wherein the photon-activated substance is configured to receive photons from a photon source to generate thermal energy that causes the phase change material to change phase such that the thermal energy is converted to the mechanical energy.
A method for preparing a photon-activated substance, the method comprising:
- melting a phase change material;
- mixing solid particles from at least one of (2,2,6,6-Tetramethylpiperidin-1-yl)oxyl (TEMPO), azobenzene (AZOB), 4-Nitro-4-dimethylaminoazobenzene, Lumogen orange 240, azulene and guaiazulene (GAZ) with the melted phase change material;
- and
- forming a mixture of the phase change material and the solid particles from at least one of (2,2,6,6-Tetramethylpiperidin-1-yl)oxyl (TEMPO), azobenzene (AZOB), 4-Nitro-4-dimethylaminoazobenzene, Lumogen orange 240, azulene and guaiazulene (GAZ).
1 more element
A method of converting photons into mechanical energy, the method comprising:
- melting a solidified mixture of a phase change material and at least one of (2,2,6,6-Tetramethylpiperidin-1-yl)oxyl (TEMPO), azobenzene (AZOB), 4-Nitro-4-dimethylaminoazobenzene, Lumogen orange 240, azulene and guaiazulene (GAZ) is guaiazulene (GAZ) with a photon source;
- and
- displacing a piston with the melted mixture of the phase change material and at least one of (2,2,6,6-Tetramethylpiperidin-1-yl)oxyl (TEMPO), azobenzene (AZOB), 4-Nitro-4-dimethylaminoazobenzene, Lumogen orange 240, azulene and guaiazulene (GAZ) is guaiazulene (GAZ).
Dependencies are inferred from the claim text.