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US 2025/0040332 A1Published application
Visibly transparent, ultraviolet-absorbing photovoltaic devices
AssigneeUbiquitous Energy, Inc.
InventorsMiles Barr, Richa Pandey, Matthew Jurow, Bo He
Life of this patent
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Abstract
Materials, methods and system for transparent photovoltaic devices are disclosed, such as those are transparent to visible light but absorb near-infrared light and/or ultraviolet light. The photovoltaic devices make use of transparent electrodes and visibly transparent UV acceptor molecules and structurally related visibly transparent photoactive compounds, which may be useful as photoactive materials, optical materials, and/or buffer materials.
Claims20
A visibly transparent photovoltaic device comprising:
- a visibly transparent substrate;
- a first visibly transparent electrode coupled to the visibly transparent substrate;
- a second visibly transparent electrode above the first visibly transparent electrode;
- a first visibly transparent active layer between the first visibly transparent electrode and the second visibly transparent electrode, wherein the first visibly transparent active layer comprises a first photoactive compound, wherein the first photoactive compound is an acceptor material comprising an ultraviolet electron acceptor (UV acceptor) bridged dimer molecule having a structure of:
- wherein:
- bridging group (B) is, an arylene linker, a heteroarylene linker, an alkylene linker, or a heteroalkylene linker,
- each one of X1-X8 or X9-X14 is independently selected from the group consisting of H, aryl, heteroaryl, alkyl, amine, alkenyl, alkynyl, and halogen, and wherein at least three of X1-X8 or at least three of X9-X14 is NHC6H13, and
- each of R is independently selected from the group consisting of H, aryl, heteroaryl, alkyl, alkenyl, alkynyl, cycloalkyl, and heterocyclyl,
- wherein the first photoactive compound exhibits a first maximum ultraviolet absorption strength and a first maximum visible absorption strength, and wherein the first maximum ultraviolet absorption strength is greater than the first maximum visible absorption strength;
- and
- a second visibly transparent active layer between the first visibly transparent electrode and the second visibly transparent electrode and in direct contact with the first visibly transparent active layer, wherein the second visibly transparent active layer comprises a second photoactive compound, wherein the second photoactive compound is an electron donor material, wherein the second photoactive compound exhibits a second maximum absorption strength in the near-infrared and a second maximum visible absorption strength, and wherein the second maximum absorption strength is greater than the second maximum visible absorption strength.
8 more elements
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Dependencies are inferred from the claim text.