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A micro-LED array device with hybrid pixel sizes from 30 μm~60 μm is designed and fabricated. A wavelength tunable range of 20 nm is obtained, which shows the device’s potential as a tunable light source to enable DWDM technology for visible light communication applications. For example, superimposing the luminescent spectra of μLEDs by different combinations, a series of spectra and light intensity...
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