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首页> 外文期刊>Organic Electronics >Brightness-enhanced, highly stable quantum dot light-emitting devices using butylated hydroxytoluene
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Brightness-enhanced, highly stable quantum dot light-emitting devices using butylated hydroxytoluene

机译：使用丁基化羟基甲苯的亮度增强的高度稳定的量子点发光器件

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Quantum dot (QD) light-emitting devices (LEDs) have recently attracted significant interest owing to their high luminance, easily adjustable color and narrow emission bandwidth. Although their luminance and efficiency have been improved, their lifetime is limited by the low chemical stability and photostability when exposed to air and water. In this study, we report on an easy method to improve QD LEDs (QLEDs) resistance to oxidation by dissolving butylated hydroxytoluene (BHT) in a CdSe/ZnS QD solution. The dissolved BHT improves stability and life expectancy because it is oxidized instead of the QDs. QLEDs fabricated using BHT-treated CdSe/ZnS QDs showed an improved luminance of 20660 cd/m(2) and a current efficiency of 3.16 cd/A. Moreover, the lifetime of the QLEDs with BHT-treated QDs was markedly improved over the untreated QLEDs because of the protection afforded by BHT.
机译：量子点（QD）发光器件（LED）由于其高亮度，易于调节的颜色和较窄的发射带宽而引起了人们的极大兴趣。尽管提高了它们的亮度和效率，但是它们的寿命受到暴露于空气和水中时化学稳定性和光稳定性低的限制。在这项研究中，我们报告了一种通过将丁基化羟基甲苯（BHT）溶解在CdSe / ZnS QD溶液中来提高QD LED（QLED）抗氧化性的简便方法。溶解的BHT被氧化而不是QD，因此提高了稳定性和预期寿命。使用BHT处理的CdSe / ZnS QD制造的QLED的亮度提高了20660 cd / m（2），电流效率提高了3.16 cd / A。此外，由于BHT提供的保护作用，经BHT处理的QD的QLED的寿命比未处理的QLED显着提高。

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