Figure 1 (IMAGE)
Caption
(a) PL spectrum of WLEDs based on CsPbBr3-OA QDs with a CRI of 82, (b) PL spectrum of WLEDs based on CsPbBr3-DA QDs with a CRI of 93 (The inset shows photographs of the devices without and with driving voltage.), and (c) CIE chromaticity diagram of both WLEDs。Figure 1a and 1b illustrate the spectra of CsPbBr3-OA QDs WLEDs and CsPbBr3-DA QDs WLEDs at a driving voltages of 2.65 V, respectively. Three emission peaks at 450, 520 and 610 nm have been observed, which are related to blue InGaN chip, CsPbBr3 QDs and AgInZnS QDs, respectively. The CIE color coordinates of (0.32, 0.35) and (0.44, 0.42) corresponding to the CsPbBr3-OA QDs and CsPbBr3-DA QDs WLEDs, respectively, as shown in Figure 1c.
Credit
OEA
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CC BY