Cambridge Enterprise Limited

King Abdulaziz City for Science and Technology

National University of Singapore

Zhi Kuang Tan

Richard Henry Friend

Dawei Di

Guangru Li

Neil Clement Greenham

Reza Saberi Moghaddam

Henry James Snaith

Lay-Lay Chua

Peter Ho

Rui-Qi Png

Perq-Jon Chia

Pablo Docampo

Felix Deschler

Jie-Cong Tang

Bibin Thomas Anto

Kim Kian Choo

Michael Price

Ying-Chieh Wong

Jun De Andrew Ng

Fabian Hanusch

Beiye Li

Aditya Sadhanala

May Ling Lai

Disclosed herein is a polymeric film, the film comprising a polymeric matrix material, a plurality of perovskite nanocrystals and/or aggregates of perovskite nanocrystals dispersed throughout the polymeric matrix material. There is also disclosed a perovskite polymer resin composition, a perovskite-polymer resin composition, a perovskite ink and a method of forming a luminescent film using any one of the compositions or ink. Preferably, the perovskite material is a lead halide perovskite containing a cation selected from Cs, an alkylammonium ion, or a formamidinium ion. The polymeric matrix is preferably formed from monomers comprising a vinyl or an acrylate group.

Perovskite polymer composite

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

A solid state light-emitting device comprising: a first electrode coupled to a first charge injecting layer; a second electrode coupled to a second charge injecting layer; an emissive layer comprising a perovskite material, wherein the emissive layer is provided between the first and second charge injecting layers; and wherein the bandgaps of the first and second charge injecting layers are larger than the bandgap of the emissive perovskite layer.

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

A cross-linking moiety having a general formula I: Ar-W, wherein Arcomprises a fluorinated phenyl azide group having at least one non-fluorine substituent that is bulkier than fluorine at a meta position relative to the azide group, and W comprises an electron-withdrawing group.

Cross-linking moiety

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Singapore, Singapore

Zhi Kuang Tan