Patent ID: 9515282
Filing Date: 2016-12-06
CPC Classification: H01L

Claim Text:
1. A method for manufacturing a light-emitting electrochemical cell comprising: a first electrode, a second electrode, and a first light-emitting active material in electrical contact with and separating the first and second electrodes, the first active material comprising mobile ions in an amount sufficient for doping the active material, wherein the method comprises a step of depositing the first active material by spray-coating at an ambient gas pressure of at least about 1 kPa, and wherein the step of spray-coating is performed such that spray droplets, when arriving at a surface being coated, are sufficiently wet to adhere to the surface, and sufficiently dry to substantially prevent fluid communication with adjacent droplets, such that spray droplets impinge on a surface layer, with surface layer defined as the topmost 100 nm of material, and such that the surface layer comprises a liquid solvent and/or dispersion-agent mass fraction of below about 90%, such that, when viewing the coated surface in a microscope, original droplet boundaries are visible.