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US 11,380,811 B2Granted
Energy conversion material
AssigneeResearch & Business Foundation Sungkyunkwan University
InventorsJaichan Lee, Sangwoo Kim, Bongwook Chung, Jae Young Park, Tae Yun Kim
Life of this patent
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Abstract
The present disclosure relates to an energy conversion material including: a pair of 2-dimensional active layers; and a property control layer positioned between the 2-dimensional active layers, and the property control layer is changed in any one or more of structure and state depending on an external environmental factor and performs reversible switching between the 2-dimensional active layers.
Claims12
An energy conversion material, comprising:
- a pair of 2-dimensional active layers including transition metal dichalcogenides;
- and
- a property control layer positioned between the 2-dimensional active layers and bonded to the 2-dimensional active layers in a vertical direction,
- wherein the property control layer is changed in any one or more of structures and states with an external environmental factor and performs reversible switching between different energy conversion modes,
- wherein the energy conversion material is switched to a photovoltaic conversion mode in the presence of external light and switched to a piezoelectric conversion mode in the absence of external light, and
- wherein the property control layer contains one or more functional groups that are attached to both ends of the property control layer, such that the property control layer forms a primary bond with a surface of one of the transition metal dichalcogenides at chalcogen vacancies, and the property control layer and the 2-dimensional active layers are linked to induce p-type or n-type doping of the 2-dimensional active layers, and charges formed by photovoltaic or piezoelectric conversion are separated into the 2-dimensional active layers.
3 more elements
Dependencies are inferred from the claim text.