Smart quantum dot LEDs with simulated solar spectrum for intelligent lighting
Smart quantum dot LEDs with simulated solar spectrum for intelligent lighting
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DOI：
10.1088/1361-6528/abab2f
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发表时间：
2020-12-11
期刊：
影响因子：
3.5
通讯作者：
Bai，Xue
中科院分区：
文献类型：
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作者：
Zhao，Yue;Xue，Dingke;Bai，Xue
采用CdSe核壳量子点结合GaN蓝光芯片制备了模拟太阳光谱的LED灯泡。其白色CIE坐标为（0.33，0.33），显色指数（CRI）为98，相关色温（CCT）为5352 K。此外，电路系统用于控制LED，使得照明光谱随一天中的时间而变化，以模拟实际的太阳光谱。结果表明，类太阳光谱智能灯泡不仅具有良好的光学性能和高的电稳定性，而且可以根据时间自动调整其光谱，使照明自然。本工作为一些特殊环境创造了类似太阳的照明条件，以促进智能灯泡在智能照明中的应用。
LED light bulbs that simulate solar spectrum were fabricated using CdSe core–shell quantum dots in combination with GaN blue-light chips. They exhibited excellent optical properties such as white CIE coordinates of (0.33, 0.33), high color rendering index (CRI) of 98 and correlated color temperature (CCT) of 5352 K. Moreover, a circuit system was used to control the LEDs so that the lighting spectrum changes with the time in a day to simulate the actual solar spectrum. The results show that the sun-like spectrum smart bulbs not only have good optical properties and high electrical stability, but also can automatically adjust their spectrum according to the time, making the lighting natural. This work makes sun-like lighting conditions for some special environments to promote the application of smart bulbs in smart lighting.