Electron transport material and light emitting diode that contains the electron transport material
申请人:Agere Systems Guardian Corp.
公开号:US06428912B1
公开(公告)日:2002-08-06
An improved multilayer light emitting device includes novel compounds for use as the electron transporting layer. In particular, the novel compounds are novel aluminum cheltates (e.g. tris(9-oxidophenalenone) aluminum [Al(9-opo)3] and tris(6-oxidobenzanthrone) aluminum [Al(6-obao)3]. These compounds are electron acceptors having improved thermal stability while in most cases and in most applications maintaining comparable efficiencies. When negatively biased, electrons are infected into the electron transporting layer. The concurrent positive bias on the anode in relation to the cathode causes holes to be injected from the cathode into the hole transporting layer. Electroluminescence is produced and confined generally near the interface between these electron and hole transporting layers an a result of the recombination of the electron and hole pairs.
Phenalenyl Based Aluminum Compound for Catalytic C–H Arylation of Arene and Heteroarenes at Room Temperature
作者:Pavan K. Vardhanapu、Jasimuddin Ahmed、Anex Jose、Bikash Kumar Shaw、Tamal K. Sen、Amita A. Mathews、Swadhin K. Mandal
DOI:10.1021/acs.joc.8b02699
日期:2019.1.4
Main group metal based catalysis has been considered to be a cost-effective alternative way to the transition metal based catalysis, due to the high abundance of main group metals in the Earth’s crust. Among the main group metals, aluminum is the most abundant (7–8%) in the Earth’s crust, making the development of aluminumbasedcatalysts very attractive. So far, aluminumbased compounds have been