There are provided compounds of the formula D-S1-A-S2-B1 wherein A comprises a 2,7- disubstituted 9,9-fluoroalkyl fluorene diradical of the formula wherein S1, S2, D and B1 have meanings given in the description that are useful as charge transport and emissive materials for the fabrication of electronic devices such as diodes, transistors, and photovoltaic devices.
DELAYED FLUORESCENCE MATERIAL AND ORGANIC LIGHT EMITTING DEVICE HAVING THE DELAYED FLUORESCENCE MATERIAL
申请人:RESEARCH & BUSINESS FOUNDATION SUNGKYUNKWAN UNIVERSITY
公开号:US20170098779A1
公开(公告)日:2017-04-06
A delayed fluorescence material in accordance with the present disclosure may comprise a compound having a molecular structure including an electron donor unit and an electron acceptor unit coupled to the electron donor unit, wherein the electron donor unit includes an acridine furan derivative formed by acridine being bonded to dibenzofuran. The delayed fluorescence material may allow high structural and thermal stabilities and improved quantum efficiency.
The present invention provides a polymerizable compound having high storage stability without causing crystal precipitation when added to a polymerizable composition. The present invention also provides a polymerizable composition containing the compound. When the filmy polymer produced through polymerization of the polymerizable composition is irradiated with UV light, it hardly discolors or peels from substrate. Further, the present invention provides a polymer produced through polymerization of the polymerizable composition and an optically anisotropic body using the polymer.
Described herin are molecules for use in organic light emitting diodes. Example molecules comprise at least one acceptor moiety A, at least one donor moiety D, and optionally one or more bridge moieties B. Each moiety A is covalently attached to either the moiety B or the moeity D, each moiety D is covalently attached to either the moeity B or the moeity A, and each B is covalently attached to at least one moiety A and at least one moiety D. Values and preferred values of moieties A, D and B are defined herein.
An Efficient Synthesis of 2,6-Disubstituted Benzobisoxazoles: New Building Blocks for Organic Semiconductors
作者:Jared F. Mike、Andrew J. Makowski、Malika Jeffries-EL
DOI:10.1021/ol802011y
日期:2008.11.6
6-Disubstituted benzobisoxazoles have been synthesized by a highly efficient reaction of diaminobenzene diols with various orthoesters. The scope of this new reaction for the synthesis of substituted benzobisoxazoles has been investigated using four different orthoesters. The utility of these compounds as buildingblocks for the synthesis of conjugated polymers is demonstrated.