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首页> 外文期刊>RSC Advances >Enhanced light emission of quantum dot films by scattering of poly(zinc methacrylate) coating CdZnSeS/ZnS quantum dots and high refractive index BaTiO3 nanoparticles
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Enhanced light emission of quantum dot films by scattering of poly(zinc methacrylate) coating CdZnSeS/ZnS quantum dots and high refractive index BaTiO3 nanoparticles

机译：通过散射聚（甲基丙烯酸锌）涂布CdzNSES / ZnS量子点和高折射率BATIO3纳米粒子来增强量子点膜的光发射

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Quantum dots (QDs) have received considerable attention in information displays owing to their high quantum yield, high colour purity and low-cost fabrication. However, light emission for ultra-thin QD films with low mass percentage of QDs still need to be improved because the blue light can directly transmit the films, leading to insufficient energy to excite the QDs. In this study, we report QD films based on a poly(zinc methacrylate) coating with alloyed green-emitting CdZnSeS/ZnS quantum dots (QDs@PZnMA) together with high refractive-index BaTiO _(3) nanoparticles to enhance the scattering coefficient of the QD films. Results demonstrate a 7.5-fold increase in the absorption coefficient, 11.3-fold increase in the scattering coefficient, 8.5-fold increase in the optical density (OD) and 8.6-fold increase in the green-light emission of QD films, compared with films that have the same mass percentage of pristine QDs. This approach provides a promising strategy for developing QD optical films with high scattering and enhanced light emission for flexible displays.
机译：由于其高量子产率，高色纯度和低成本制造，量子点（QDS）在信息显示中获得了相当大的关注。然而，由于蓝光可以直接传递薄膜，因此需要改善具有低质量QD百分比的超薄QD膜的发光，导致能量不足以激发QD。在该研究中，我们将基于聚（甲基锌酯）涂层的QD薄膜用合金的绿色发射CdzNSE / ZnS量子点（QDS @ PZNMA）以及高折射率BATIO _（3）纳米颗粒，以增强散射系数QD电影。结果表明，吸收系数增加7.5倍，散射系数的增加11.3倍，光密度增加8.5倍，与薄膜的绿光发射的光学密度增加8.6倍，相比，QD膜的绿光发射增加具有相同的质量QDS的质量百分比。该方法提供了一种有希望的策略，用于开发具有高散射的QD光学薄膜和增强的柔性显示器的发光。

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