In this study, we propose a centrifugation packaging (CP) structure to enhance the optical and thermal dissipation performance of LEDs, using SBA-15 particles to facilitate the sedimentation and dispersion of QDs. The results indicate that the EL spectra of the LEDs remains almost unchanged after the centrifugation time of 60 min and a CP structure can be obtained. The radiation power and luminous flux of LEDs with a CP structure improve by 9.1% and 10.4%, respectively, compared with the uniform distribution (UD) structure. The surface temperature of LED devices with the CP structure is reduced to 34.4 °C from 41.8 °C at a current of 100 mA. Furthermore, the simulation results show that the maximum temperature in the CP structure is 22.4% lower than that in the UD structure at a current of 500 mA. Thus, this study can provide a new perspective for designing settlement structures of QD-LEDs to enhance their optical and thermal performance.

中文翻译：

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使用离心封装结构增强 QD 白光 LED 的光学和热性能


在这项研究中，我们提出了一种离心封装（CP）结构来增强LED的光学和散热性能，使用SBA-15颗粒来促进QD的沉降和分散。结果表明，离心60分钟后，LED的EL光谱几乎保持不变，并且可以获得CP结构。与均匀分布（UD）结构相比，CP结构的LED的辐射功率和光通量分别提高了9.1%和10.4%。 CP结构的LED器件在100mA电流下表面温度从41.8℃降至34.4℃。此外，仿真结果表明，在500 mA电流下，CP结构的最高温度比UD结构低22.4%。因此，这项研究可以为设计QD-LED沉降结构以提高其光学和热性能提供新的视角。