家庭交流电流插即用量子点发光二极管
Jiming Wang1,2, Cuixia Yuan1, Shuming Chen3
1Department of Electrical and Electronic Engineering, Southern University of Science and Technology, Shenzhen, 518055, PR China.
Nature communications
|April 25, 2024
概括
量子点LED现在可以直接由家庭交流电提供动力,使用一种新的双重设备. 这一创新消除了对复杂驱动器电路的需求,降低了高效固态照明的成本和尺寸.
科学领域:
- 材料科学 材料科学 材料科学
- 固态物理 固态物理
- 光电学是指光电子产品.
背景情况:
- 量子点LED (QLED) 是直流装置,需要驱动电路来提供交流电源.
- 现有的驱动器电路增加了QLED系统的复杂性和成本.
- 直接交流供电的QLED为更紧和更具成本效益的照明解决方案提供了潜力.
研究的目的:
- 开发一种量子点LED,能够直接使用家庭交流电进行操作.
- 为了消除QLED应用中复杂和昂贵的驱动器电路的需求.
- 为高效和稳定的固态照明创建一个插电式QLED面板.
主要方法:
- 使用透明和导电的氧化物中间电极制造一个双联量子点LED.
- 集成多个串联设备串联形成一个面板.
- 在家用标准交流电压 (220V/50Hz) 下测试面板的性能.
主要成果:
- 开发的双联量子点LED在负和正交流周期中有效运行.
- 实现了20.09% (负周期) 和21.15% (正周期) 的外部量子效率.
- 在220V/50Hz驾驶下,展示了一个具有15.70lm/W功率效率和可调节亮度高达25,834cd/m2的插电板.
结论:
- 新的双联量子点LED设计可以从家庭交流电源直接操作.
- 这种方法通过消除对外部驱动器电路的需求,大大简化了QLED系统.
- 开发的技术有助于生产具有成本效益,紧,高效和稳定的交流电源固态光源.
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