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首页> 外文期刊>Journal of Alloys and Compounds: An Interdisciplinary Journal of Materials Science and Solid-state Chemistry and Physics >Textured zinc oxide prepared by liquid phase deposition (LPD) method and its application in improvement of extraction efficiency for 650 nm resonant-cavity light-emitting diode (RCLED)
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Textured zinc oxide prepared by liquid phase deposition (LPD) method and its application in improvement of extraction efficiency for 650 nm resonant-cavity light-emitting diode (RCLED)

机译：液相沉积（LPD）方法制备的织构氧化锌及其在提高650 nm谐振腔发光二极管（RCLED）的提取效率中的应用

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摘要

In this article, we report on the textured zinc oxide (ZnO) prepared by liquid-phase deposition (LPD) method and apply it as a window layer of 650 nm resonant-cavity light-emitting diode to enhance the extraction efficiency. The treatment solution for LPD ZnO (LPD-ZnO) growth consists of ZnO powder saturated with hydrochloric acid (HC1) and hydrogen peroxide (H_2O_2). Temperature-controlled water bath system was used to maintain a constant temperature of 40 °C in LPD system. The experimental results indicate that the deposition rate was determined by the concentration of H_2O_2 and growth temperature, and the average roughness of LPD-ZnO is dominated by the concentrations of HCl. In order to perform the practicability of LPD-ZnO, the textured LPD-ZnO is used as a window layer of 650 nm AlGalnP/GalnP resonant-cavity light-emitting diode (RCLED) to enhance the light output power. In addition, the calculated results indicate that the optimum roughness for enhancing the light output power of RCLED is in the range of 80-100 nm, which are close to the experimental results. As compared to the conventional RCLED, the RCLED with textured LPD-ZnO, which has the optimum average roughness of 82 nm, performs a high light output power, a high external quantum efficiency, a narrow linewidth of electroluminescence spectrum and the same far-field angle.
机译：在本文中，我们报道了通过液相沉积（LPD）方法制备的纹理化氧化锌（ZnO），并将其用作650 nm谐振腔发光二极管的窗口层，以提高提取效率。 LPD ZnO（LPD-ZnO）生长的处理溶液由用盐酸（HCl）和过氧化氢（H_2O_2）饱和的ZnO粉组成。在LPD系统中，使用了温度控制的水浴系统来维持40°C的恒定温度。实验结果表明，沉积速率取决于H_2O_2的浓度和生长温度，而LPD-ZnO的平均粗糙度主要取决于HCl的浓度。为了执行LPD-ZnO的实用性，将有纹理的LPD-ZnO用作650 nm AlGalnP / GalnP谐振腔发光二极管（RCLED）的窗口层，以提高光输出功率。另外，计算结果表明，用于提高RCLED的光输出功率的最佳粗糙度在80-100nm的范围内，与实验结果接近。与常规RCLED相比，具有纹理化LPD-ZnO的RCLED的最佳平均粗糙度为82 nm，具有高的光输出功率，高的外部量子效率，窄的电致发光光谱线宽和相同的远场角度。

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