Erdong Zhang

Oct 11, 2023 | mdpi.com | Ren Sheng |Cong Chen |Wencheng Zhao |Erdong Zhang

1. IntroductionOrganic light-emitting diodes (OLEDs) hold great promise for applications in full-color display and solid-state lighting because of their striking advantages, such as high efficiency, fast response, and flexibility [1,2,3,4]. In order to pursue high efficiency, phosphor-doped OLEDs are a highly effective approach because of 100% internal quantum efficiency in principle via harnessing both singlet and triplet excitons [5,6,7].