Efficient and tuneable photoluminescent boehmite hybrid nanoplates lacking metal activator centres for single-phase white LEDs

	Efficient and tuneable photoluminescent boehmite hybrid nanoplates lacking metal activator centres for single-phase white LEDs
	Bai X.; Caputo G.; Hao Z. D.; Freitas V. T.; Zhang J. H.; Longo R. L.; Malta O. L.; Ferreira R. A. S.; Pinna N.
	2014
发表期刊	Nature Communications
ISSN	ISBN/2041-1723
卷号	5 期号:8
摘要	White light-emitting diodes (WLEDs) are candidates to revolutionize the lighting industry towards energy efficient and environmental friendly lighting and displays. The current challenges in WLEDs encompass high luminous efficiency, chromatic stability, high colour-rending index and price competitiveness. Recently, the development of efficient and low-cost downconverting photoluminescent phosphors for ultraviolet/blue to white light conversion was highly investigated. Here we report a simple route to design high-efficient WLEDs by combining a commercial ultraviolet LED chip (InGaAsN, 390 nm) and boehmite (gamma-AlOOH) hybrid nanoplates. Unusually high quantum yields (eta(yield) = 38-58%) result from a synergic energy transfer between the boehmite-related states and the triplet states of the benzoate ligands bound to the surface of the nanoplates. The nanoplates with eta(yield) = 38% are able to emit white light with Commission International de l'Eclairage coordinates, colour-rendering index and correlated colour temperature values of (0.32, 0.33), 85.5 and 6,111 K, respectively; overwhelming state-of-the-art single-phase ultraviolet-pumped WLEDs phosphors.
收录类别	SCI
语种	英语
文献类型	期刊论文
条目标识符	http://ir.ciomp.ac.cn/handle/181722/43946
专题	中科院长春光机所知识产出
推荐引用方式 GB/T 7714	Bai X.,Caputo G.,Hao Z. D.,et al. Efficient and tuneable photoluminescent boehmite hybrid nanoplates lacking metal activator centres for single-phase white LEDs[J]. Nature Communications,2014,5(8).
APA	Bai X..,Caputo G..,Hao Z. D..,Freitas V. T..,Zhang J. H..,...&Pinna N..(2014).Efficient and tuneable photoluminescent boehmite hybrid nanoplates lacking metal activator centres for single-phase white LEDs.Nature Communications,5(8).
MLA	Bai X.,et al."Efficient and tuneable photoluminescent boehmite hybrid nanoplates lacking metal activator centres for single-phase white LEDs".Nature Communications 5.8(2014).

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