Metal Halide Perovskite Light‐Emitting Devices: Promising Technology for Next‐Generation Displays,Advanced Functional Materials

当前位置： X-MOL 学术 › Adv. Funct. Mater. › 论文详情

Our official English website, www.x-mol.net, welcomes your feedback! (Note: you will need to create a separate account there.)

Metal Halide Perovskite Light‐Emitting Devices: Promising Technology for Next‐Generation Displays
Advanced Functional Materials ( IF 18.5 ) Pub Date : 2019-04-26 , DOI: 10.1002/adfm.201902008
Min Lu ₁ , Yu Zhang ₁ , Shixun Wang ₁ , Jie Guo ₁ , William W. Yu _{1,

2} , Andrey L. Rogach ₃

Affiliation

As the requirements and expectation for displays in society are growing, higher standards of the display technology are proposed, including wider color gamut, higher color purity, and higher resolution. The recent emergence of light‐emitting halide perovskites has come with numerous advantages, such as high charge‐carrier mobility, tunable emission wavelength, narrow emission linewidth, and intrinsically high photoluminescence quantum yield. Recent advancement of perovskite‐based light‐emitting diodes (PeLEDs) as a promising technology for next‐generation displays is reviewed. Here, how the attractive optical and electrical properties of perovskite materials can be translated into high PeLED performance are discussed, and working mechanisms and optimization approaches of both perovskite materials and the respective devices are analyzed. On the material side this includes the control of size and composition of perovskites grains and nanocrystals, surface and interface passivation, doping and alloying, while on the device side this includes the interfacial engineering and energy level adjustments, and photon emission enhancement. Several challenges such as performance of blue PeLEDs, the environmental and operational stability of PeLEDs, and the toxicity issues of lead halide perovskites are discussed, and perspectives on future developments of perovskite materials and PeLEDs for the display technology are offered.

中文翻译：

金属卤化物钙钛矿发光器件：下一代显示器的有前途的技术

随着社会对显示器的需求和期望的增长，提出了更高的显示技术标准，包括更宽的色域，更高的色纯度和更高的分辨率。发光卤化物钙钛矿的最新出现具有许多优势，例如高的载流子迁移率，可调的发射波长，窄的发射线宽以及本质上较高的光致发光量子产率。回顾了钙钛矿基发光二极管（PeLEDs）的最新发展，它是下一代显示器的有希望的技术。在这里，讨论了如何将钙钛矿材料的诱人的光学和电学特性转化为高PeLED性能，并分析了钙钛矿材料和相应器件的工作机理和优化方法。在材料方面，这包括控制钙钛矿晶粒和纳米晶体的尺寸和组成，表面和界面钝化，掺杂和合金化，而在设备方面，包括界面工程和能级调整以及光子发射增强。讨论了蓝色PeLED的性能，PeLED的环境和操作稳定性以及卤化钙钛矿铅的毒性问题等若干挑战，并就显示技术的钙钛矿材料和PeLED的未来发展提供了展望。和光子发射增强。讨论了蓝色PeLED的性能，PeLED的环境和操作稳定性以及卤化钙钛矿铅的毒性问题等若干挑战，并就显示技术的钙钛矿材料和PeLED的未来发展提供了展望。和光子发射增强。讨论了蓝色PeLED的性能，PeLED的环境和操作稳定性以及卤化钙钛矿铅的毒性问题等若干挑战，并就显示技术的钙钛矿材料和PeLED的未来发展提供了展望。

更新日期：2019-04-26

点击分享查看原文

点击收藏

阅读更多本刊新发论文本刊介绍/投稿指南