摘要:
The present invention relates to powder compositions of a complex between an acid or a corresponding anion and at least one metal or corresponding metal cation, said corresponding anion or acid being selected from the group containing 2- hydroxy-4-methylthio-butanoic acid (HMTBA), methionine, aspartic acid, alginic acids, pectinic acids and the corresponding anions, and said metal or metal cation being divalent or trivalent. The particle includes an amorphous fraction, the mass of which represents at least 50%, specifically at least 70% and more specifically at least 90% of the total mass of the particle, said particle being substantially free from non-complexed anion or acid and non complexed metal cation or metal.
摘要:
The present invention relates to a plurality of host materials and an organic electroluminescent device comprising the same. By comprising a specific combination of a plurality of host compounds, the organic electroluminescent device according to the present invention provides high efficiency and a long lifespan.
摘要:
The disclosure relates to the preparation of substantially pure disubstituted beryllium compounds suitable for the preparation of semiconductive beryllium oxide films. In some embodiments, the purification of the disubstituted beryllium compounds is achieved with the aid of a sublimation vessel that provides uniform heating. The sublimation vessel, along with its heating chamber subassembly, is disclosed. In one embodiment, a beryllium oxide film is prepared from the substantially pure disubstituted beryllium compounds. The disclosure further relates to the deposition of beryllium oxide film layers onto surfaces in a variety of applications.
摘要:
The disclosure relates to the preparation of substantially pure disubstituted beryllium compounds suitable for the preparation of semiconductive beryllium oxide films. In some embodiments, the purification of the disubstituted beryllium compounds is achieved with the aid of a sublimation vessel that provides uniform heating. The sublimation vessel, along with its heating chamber subassembly, is disclosed. In one embodiment, a beryllium oxide film is prepared from the substantially pure disubstituted beryllium compounds. The disclosure further relates to the deposition of beryllium oxide film layers onto surfaces in a variety of applications.