4.7 Article

Highly efficient Cs-based perovskite light-emitting diodes enabled by energy funnelling

期刊

CHEMICAL COMMUNICATIONS
卷 53, 期 88, 页码 12004-12007

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ROYAL SOC CHEMISTRY
DOI: 10.1039/c7cc06615e

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资金

  1. National Research Foundation, Prime Minister's Office, Singapore, under its Competitive Research Programme (CRP) [NRF-CRP14-2014-03]
  2. MOE [RG166/16]

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The incorporation of phenylethylammonium bromide (PEABr) into a fully inorganic CsPbBr3 perovskite framework led to the formation of mixed-dimensional perovskites, which enhanced the photoluminescence due to efficient energy funnelling and morphological improvements. With a PEABr : CsPbBr3 ratio of 0.8 : 1, PeLEDs with a current efficiency of 6.16 cd A(-1) and an EQE value of 1.97% have been achieved.

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