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Simultaneous enhancement of photo- and electroluminescence in white organic light-emitting devices by localized surface plasmons of silver nanoclusters

机译:通过银纳米能器的局部表面等离子体同时增强白色有机发光器件中的光敏和电致发光

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摘要

White organic light-emitting devices (WOLEDs) with enhanced current efficiency and negligible color shifting equipped with an internal color conversion layer (CCL) were fabricated. They were attained by embedding a single layer of silver nanoclusters (SNCs) between the CCL and light-emitting layer (EML). The simultaneous enhancement of the photoluminescence (PL) of the CCL and electroluminescence (EL) of the EML were realized by controlling the thickness and size of the SNCs to match the localized surface plasmon resonance spectrum with the PL spectrum of the CCL and the EL spectrum of the EML. The WOLED with optimal SNCs demonstrated a 25.81% enhancement in current efficiency at 60 mA cm(-2) and good color stability over the entire range of current density.
机译:制造具有增强电流效率和可忽略具有内部颜色转换层(CCL)的电流效率和可忽略的颜色转换(CCL)的白色有机发光器件(Woled)。 通过在CCL和发光层(EML)之间嵌入单层银纳米团簇(SNC)来实现它们。 通过控制SNC的厚度和尺寸来实现EML的CCL和电致发光(EL)的光致发光(PL)的同时增强,以将局部等离子体共振光谱与CCL和EL光谱的PL光谱匹配 EML。 具有最佳SNC的Woled在60 mA cm(-2)时,在60 mA cm(-2)中的电流效率增加了25.81%,并且在整个电流密度范围内的良好颜色稳定性。

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