7. Thanks

The authors would like to thank the University of Rennes 1, CNRS, Agence Nationale de la Recherche (research projects HOME-OLED ANR-11-BS07-0020, MenInBlue ANR-14-CE05-0024 & SpiroQuest ANR-19-CE05-0024), ADEME and Région Bretagne for their financial support. The authors would also like to thank all their collaborators, and especially the PhD students for the synthesis and physicochemical analysis of the molecules from their group presented in this article. Our thanks also go to B. Geffroy, Denis Tondelier and their collaborators who fabricated and tested PhOLEDs using these molecules as host materials. The results of the D10, D23 and D31 diodes are the fruit of a collaboration between our group and the group of Professor Zuo-Quan Jiang (FUNSOM, Soochow University, Suzhou) in China, who would like to thank them warmly.