High-brightness blue organic light emitting diodes with different types of guest-host systems

Super color purity green organic light-emitting diodes with ZrO2/zircone nanolaminates as a distributed Bragg reflector deposited by atomic layer deposition

“…Organic light-emitting diodes (OLEDs) have attracted considerable attention as next-generation display and lighting due to great advantages such as their vivid full color, high brightness, low power consumption, fast response, and suitability for flexible devices [1][2][3]. Facing these applications, a narrow spectrum width is very important for getting high color purity [4,5]. Microcavity OLEDs with semi-transparent distributed Bragg reflectors (DBR) have a selected emission wavelength and a narrow spectrum width because of the coupling of the active region with the Fabry-Perot cavity mode [6,7].…”