Methods for depositing nanomaterial, methods for fabricating a device, and methods for fabricating an array of devices
AssigneeQd Vision, Inc.
InventorSeth Coe-Sullivan
Life of this patent
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Abstract
A method comprising depositing an ink comprising a nanomaterial and a liquid vehicle from a micro-dispenser onto a layer of a device is disclosed. A method comprising depositing an ink comprising a nanomaterial and a liquid vehicle from a micro-dispenser onto a material capable of transporting charge in a predetermined arrangement is also disclosed. Methods for fabricating devices including nanomaterials are also disclosed. In certain preferred embodiments, the nanomaterial comprises semiconductor nanocrystals. In certain preferred embodiments, a micro-dispenser comprises an inkjet printhead.
Claims14
A method for making a light-emitting device including an emissive material including a nanomaterial comprising quantum confined semiconductor nanocrystals that emit light having a predetermined wavelength comprising:
- providing a substrate including a first electrode,
- disposing a first layer over the substrate including the first electrode;
- depositing an ink comprising the nanomaterial comprising the quantum confined semiconductor nanocrystals and a liquid vehicle over a surface of the first layer from a micro-dispenser in a predetermined arrangement;
- and
- disposing a second electrode over the predetermined arrangement,
- wherein the first layer comprises a material which is at least partially soluble in the liquid vehicle, wherein at least a portion of the nanomaterial is at least temporarily mixed in a portion of the material that dissolves in the ink, and wherein the liquid vehicle is removed such that the nanomaterial phase separates to form a layer of nanomaterial at the surface of the first layer.
Dependencies are inferred from the claim text.