articleAdvanced MaterialsMay 29, 2023Closed access

Perovskite Light‐Emitting Diodes with an External Quantum Efficiency Exceeding 30%

WBWenhao BaiTXTongtong XuanHZHaiyan ZhaoHDHaorui DongXCXinru Cheng

Xiamen University · China Jiliang University · +1 more institution

PubMed
Indexed incrossrefpubmed

Abstract

Abstract Perovskite light‐emitting diodes (PeLEDs) are strong candidates for next‐generation display and lighting technologies due to their high color purity and low‐cost solution‐processed fabrication. However, PeLEDs are not superior to commercial organic light‐emitting diodes (OLEDs) in efficiency, as some key parameters affecting their efficiency, such as the charge carrier transport and light outcoupling efficiency, are usually overlooked and not well optimized. Here, ultrahigh‐efficiency green PeLEDs are reported with quantum efficiencies surpassing a milestone of 30% by regulating the charge carrier transport and near‐field light distribution to reduce electron leakage and achieve a high light…

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417
total citations
FWCI
51.70
Percentile
100%
References
51
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Authors

7

Topics & keywords

Topics
Keywords
  • Materials science
  • Perovskite (structure)
  • Optoelectronics
  • Diode
  • Light-emitting diode
  • Quantum efficiency
  • Quantum
  • Nanotechnology
UN Sustainable Development Goals
  • Affordable and clean energy
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