Abstract:
A method of making a device comprises forming a layer comprising quantum dots over a substrate including a first electrode, fixing the layer comprising quantum dots formed over the substrate, and exposing at least a portion of, and preferably all, exposed surfaces of the fixed layer comprising quantum dots to small molecules. The layer comprising quantum dots can be preferably fixed in the absence or substantial absence of oxygen. Also disclosed is a method of making a device comprises forming a layer comprising quantum dots over a substrate including a first electrode, exposing the layer comprising quantum dots to small molecules and light flux. Also disclosed is a method of making a film including a layer comprising quantum dots, the method comprising forming a layer comprising quantum dots over a carrier substrate, fixing the layer comprising quantum dots formed over the carrier substrate, and exposing at least a portion of, and preferably all, exposed surfaces of the fixed layer comprising quantum dots to small molecules. The layer comprising quantum dots can be preferably fixed in the absence or substantial absence of oxygen. Also disclosed is a method of preparing a device component including a layer comprising quantum dots, the method comprising forming a layer comprising quantum dots over a layer comprising a charge transport material, exposing the layer comprising quantum dots to small molecules and light flux. Devices, device components, and films are also disclosed.
Abstract:
A light emitting device including a light emitting element having a light emitting surface and an optical component comprising an optical material comprising quantum dots sealed within an optically transparent structural member, the optical component being coupled to the light emitting element by a thermally conductive member is disclosed. A light emitting device including a light emitting element having a light emitting surface and an optical component comprising an optical material comprising quantum dots sealed within a structural member comprising single crystal sapphire, the optical component being coupled to the light emitting element by a thermally conductive member, is also disclosed.
Abstract:
A luminescent particle including a surface comprising glass that surrounds one or more particles of one or more light emissive materials is disclosed. Preferably the surface comprises a vitrified glass. Methods form making a luminescent particle including a surface comprising glass that surrounds one or more particles of one or more light emissive materials is also disclosed. Compositions and products including a luminescent particle are further disclosed.
Abstract:
Methods for making an hermetically sealed optical component are disclosed. An individual hermetically sealed optical component and products including same are also disclosed.
Abstract:
The present invention relates to a composition including quantum dots and an emission stabilizer, products including same, and methods, including methods for improving, or enhancing the emission stability of quantum dots. Inclusion of an emission stabilizer in a composition can improve or enhance the stability of at least one emissive property of the quantum dots in the composition against degradation compared to a composition that is the same in all respects except that it does not include the emission stabilizer. Examples of such emissive properties include, by way of example only, lumen output, lumen stability, color point (e.g., CIE x, CIE y) stability, wavelength stability, FWHM of the major peak emission, absorption, solid state EQE, and quantum dot emission efficiency.