Zhengtao Deng

Mar 5, 2024 | mdpi.com | Chuying Wang |Guangyong Xu |Guigen Luo |Zhengtao Deng

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Mar 5, 2023 | onlinelibrary.wiley.com | Min Peng |Shibin Sun |Bin Xu |Zhengtao Deng

Abstract Currently, the most popular way to manufacture white light-emitting diodes (WLEDs) is based on blue-emitting InGaN LED chips (440–460 nm) and yellow-emitting phosphor coating (520–700 nm) to produce white light lighting. However, because conventional white WLEDs lack the uniformly distributed continuous emission spectrum compared to natural sunlight: “blue overshoot” (extra 440–460 nm blue-light can cause damage to the retina) and “cyan gap” (470–520 nm wavelength range).