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Organic-Inorganic Complexes Containing a Luminescent Rare Earth-Metal Nanocluster and an Antenna Ligand, Luminescent Articles, and Methods of Making Luminescent Articles

Powerpane TM

Battelle Memorial Institute

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PDF Document PublicationView Patent Here (137 KB)

Technology Marketing SummaryBattelle has developed a material capable of spectral conversion, that is, absorbing light across a broad range of wavelengths and re-emitting this light in a narrow wavelength range. These materials can then be integrated into devices to convert solar radiation into energy. In one implementation, this material can be applied to a solar cell to enhance the absorption efficiency of the solar cell. In a second implementation, this material can be placed between two panes of glass, and used to guide the re-emitted light to the edge of the glass. In this way, the glass can function as a window, while converting some fraction of the incident sunlight into useful energy (PowerPane™).Description
Luminescent compositions are described comprising lanthanide-containing nanoclusters comprising lanthanide atoms bonded to at least one semimetal or transition metal via an oxygen or sulfur atom. Novel compositions include an antenna ligand complexed with the nanoclusters. The rare earth-metal nanoclusters are in the size range of 1 to 100 nm. Articles, such as solar cells, are described in which the nanoclusters (with or without antenna ligands) are dispersed in a polymer matrix. Novel methods of making luminescent films are also described.
Benefits• Use of inorganic materials enhances durability of the optical response
• Use of antenna ligands enhances the absorption strength
• Compatible with many polymers and processing methods
Applications and Industries• Photovoltaic cells
• Energy-generating windows
Technology Status
Development StageAvailabilityPublishedLast Updated
PrototypeAvailable06/11/201206/11/2012

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