Ontology highlight
ABSTRACT:
SUBMITTER: Song Y
PROVIDER: S-EPMC8865764 | biostudies-literature | 2022 Feb
REPOSITORIES: biostudies-literature
Song Yang Y Liu Ruixiang R Wang Zhibo Z Xu Huaiyu H Ma Yong Y Fan Fengjia F Voznyy Oleksandr O Du Jiangfeng J
Science advances 20220223 8
Current state-of-the-art quantum dot light-emitting diodes have reached close to unity internal quantum efficiency. Further improvement in external quantum efficiency requires more efficient photon out-coupling. Improving the directivity of the photon emission is considered to be the most feasible approach. Here, we report improved emission directivity from colloidal quantum dot films. By growing an asymmetric compressive shell, we are able to lift their band-edge state degeneracy, which leads t ...[more]