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PLL<br />
Intensity (a.u.)<br />
Principles of QD nanophosphor embedded<br />
WLED WLEDs<br />
350 400 450 500 550 600 650 700<br />
λ (nm)<br />
�Quantum efficiency<br />
>90% in solution, >70% in film demonstrated by<br />
other groups (and further improvements are in<br />
progress)<br />
�Adjustable optical spectrum, easy to tune<br />
�High quality white light:<br />
high CRI, high LER, low CCT<br />
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