Efficient and tuneable photoluminescent boehmite hybrid nanoplates lacking metal activator centres for single-phase white LEDs
文献类型：期刊论文
| 作者 | 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. |
| 刊名 | Nature Communications
 |
| 出版日期 | 2014 |
| 卷号 | 5期号:8 |
| ISSN号 | ISBN/2041-1723 |
| 英文摘要 | 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 |
| 源URL | [http://ir.ciomp.ac.cn/handle/181722/43946]  |
| 专题 | 长春光学精密机械与物理研究所_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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