Cambridge Enterprise Limited

King Abdulaziz City for Science and Technology

Uea Enterprises Limited

Dawei Di

Richard Henry Friend

Zhi Kuang Tan

Guangru Li

Neil Clement Greenham

Manfred Bochmann

Reza Saberi Moghaddam

Le Yang

Alexander Sergeyevich Romanov

Daniel John Nicholas Credgington

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

The present invention provides complexes of the formula (L)M(X), in which M is a metal atom selected from copper, silver and gold; L is a carbene ligand; and X is a monoanionic ligand. The complexes are useful as light emitters in the emissive zone of light-emitting devices such as OLEDs. The present invention also provides organometallic complexes which exhibit RASI photoemission, and the use of the same in light-emitting devices such as OLEDs.

Metal complexes

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Cambridge, United Kingdom

Dawei Di