Abstract:
A method for preparing a sol-gel film is disclosed. The method comprises providing a sol-gel composition comprising one or more sol-gel film precursors and a crystallization aid, and processing the sol-gel composition by solution processing to form the sol-gel film. In certain embodiments, the sol-gel film comprises one or more metal oxides. A preferred crystallization aid includes triphenylphosphine oxide. A composition for making a sol-gel film, a sol-gel film, a device including a sol-gel film and a method for making such device are also disclosed.
Abstract:
A device including an emissive material comprising quantum dots is disclosed. In one embodiment, the device includes a first electrode and a second electrode, a layer comprising quantum dots disposed between the first electrode and the second electrodes, and a first interfacial layer disposed at the interface between a surface of the layer comprising quantum dots and a first layer in the device. In certain embodiments, a second interfacial layer is optionally further disposed on the surface of the layer comprising quantum dots opposite to the first interfacial layer. In certain embodiments, a device comprises a light-emitting device. Other light emitting devices and methods are disclosed.
Abstract:
A method for preparing a light emitting device comprising: disposing an electron-injection layer comprising a metal oxide on a cathode, disposing a first layer adjacent the electron-injection layer, the first layer comprising a small molecule material with a bandgap of at least about 3 eV capable of blocking holes, forming an emissive layer comprising quantum dots capable of emitting blue light upon excitation at a surface of the first layer opposite the electron-injection layer; disposing a second layer comprising a material capable of transporting holes and blocking electrons with a bandgap of at least about 3 eV adjacent a surface of the emissive layer opposite the first layer, and disposing an anode over the second layer. A light-emitting device is also disclosed.