通过引入高功函数金属过渡层提高钙钛矿发光二极管性能
Boosting Perovskite Light-Emitting Diodes Performance by Introducing High Work-function Metal Transition Layer
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中文总结 AI 辅助
研究阳极功函数对全无机PeLED器件性能的影响，通过在ITO与NiOx间插入高功函数金属层降低空穴注入势垒，如2nm厚Au可使发光强度提升超18倍，为提高PeLED亮度开辟新途径且与大规模制造工艺兼容。
中文摘要 AI 辅助
我们利用商业专业软件Setfos中嵌入的漂移扩散和泊松方程，研究了阳极功函数对全无机PeLED器件性能的影响。模拟结果表明，在氧化铟锡（ITO）和氧化镍（NiOx）空穴传输层之间插入一层薄的高功函数金属层，可通过降低空穴注入势垒来促进空穴注入。经检测，2nm厚的金（Au）可显著提高发光强度，提升超18倍。钯和铂等高功函数金属也有类似效果。用高功函数薄金属层修饰PeLED阳极以促进空穴注入，为高效提高PeLED发光亮度开辟了新途径，且该技术与大规模制造工艺兼容。
英文摘要
We investigated the impact of the anode's work-function on the performance of an all inorganic PeLED device which was hailed for stability and long lifetime with drift-diffusion and Poisson equations embedded as a computation package in Setfos, a commercially professional software to emulate LED. According to the simulation results, a conclusion that a thin high work-function metal layer inserted between indium tin oxide (ITO) and hole transport layer of nickel oxide (NiOx) substantially facilitated hole injection by decrementing the hole injection barrier. 2 nm thick gold (Au) had been checked and dramatically enhanced luminance intensity by more than 18 fold times had been attained. The situation went for other high work function metals like Pd and Pt as well. Our high work-function thin metal layers decorating anodes in PeLED in facilitating hole injection unfolds a new trajectory towards efficiently boosting PeLED luminance with a technique that is compatible with large scale fabrication process.
