King Abdulaziz City for Science and Technology

Cambridge Enterprise Limited

Guangru Li

Richard Henry Friend

Zhi Kuang Tan

Dawei Di

Neil Clement Greenham

Reza Saberi Moghaddam

Broadly speaking, embodiments of the present invention provide a solid state light-emitting device and a method of manufacturing the solid state light-emitting device. The method comprises preparing a thin layer of semiconducting perovskite nanoparticles embedded in a matrix or blend of a material that has a wider band gap than the semiconducting perovskite nanoparticles. In embodiments, the method comprises blending a solution of a semiconducting perovskite material or a precursor therefor with a solution of a material that has a wider band gap than the semiconducting perovskite material or a precursor therefor followed by removal of the solvent from the mixture thus formed, to give the semiconducting perovskite nanoparticles embedded in a matrix or blend of the material that has a wider band gap than the semiconducting perovskite nanoparticles.

Electroluminescent device

We describe a luminescent device () comprising a substrate () and a film comprising perovskite crystals () deposited on the substrate, wherein the film comprising perovskite crystals is encapsulated with a layer ()) or within a matrix () of an insulating oxide or an insulating nitride.

Luminescent device

Growing community of inventors

Heilongjiang, China

Guangru Li