Efficient Thermally Activated Delayed Fluorescence Carbazole Derivatives with a Cofacial Acceptor/Donor/Acceptor Chromophore: Comparable Luminescent Properties to their Counterparts with an Opposite Configuration of Donor/Acceptor/Donor

Four carbazole derivatives, PTBPAC, PTPAC, BPTBPAC and BPTPAC, are designed and synthesized for broadening the carbazole-containing thermally activated delayed fluorescence (TADF) materials. The compounds all contain a cofacial acceptor/donor/acceptor structural...