Synthesis and characterization of organic light-emitting molecules possessing 3-(4-methoxyphenyl)thieno[3,2-b]thiophene and boron

Mehmet Emin Cinar, Erdem Engür, and Turan Ozturk

Department of Chemistry, Istanbul Technical University, Maslak, Istanbul 34469, Türkiye

Department Chemie-Biologie, Universität Siegen, 57068 Siegen, Germany

TUBITAK-UME, Chemistry Group Laboratories, PO Box 54, 41471, Gebze, Kocaeli, Türkiye

Abstract: The donor-acceptor (D - A) system, which is one of the main methods implemented in material chemistry, has been widely used to construct low band-gap semiconductors. It is desirable that donor molecules have π-conjugation in these structures. Thienothiophene (TT) derivatives have been used extensively as donors and are preferred in optoelectronic applications. As a strong acceptor, boron unit with a vacant p orbital is linked to donor TT groups. Bulky tetraphenylethylene (TPE) subunits were appended as end groups to afford an aggregation-induced emission (AIE).

Keywords: Thienothiophene; aggregation induced emission (AIE); organic light emitting diod (OLED); boron. ©2018 ACG Publication. All right reserved.