Improving the Stability and Performance of Perovskite Light-Emitting Diodes by Thermal Annealing Treatment

Abstract

$\textbf{A perovskite LED with a perovskite film}$ treated under optimum thermal annealing conditions exhibits a significantly enhanced long-term stability with full coverage of the green electroluminescence emission due to the highly uniform morphology of the perovskite film.This study was supported by the Mid-Career Researcher Program (2015R1A2A2A01003263). This work was fi nancially supported by the KIST-UNIST partnership program (1.150091.01/2.150464.01). This work was also supported by the Human Resource Training Program for Regional Innovation and Creativity through the Ministry of Education and National Research Foundation of Korea (NRF-2014H1C1A1073051). We thank the EPSRC (UK) for support