This project was supported by the Scientific Research Development Program of Shandong Provincial High School(J18KA082);the Under-graduate Training Program for Innovation and Entrepreneurship of Shandong Provincial High School(201710446042,2018A043);the Experimental Technology Research Program of Qufu Normal University(SJ201709)
Four bipolar triphenylamine(TPA) charge transport materials were constructed by introducing imidazole and trifluoroacetyl groups into the TPA units, and characterized by the nuclear magnetic resonance spectrum(NMR) an...