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Materials Science-Poland
Volume 40 (2022): Issue 2 (August 2022)
Open Access
Studying CdS:In green phosphor's impacts on white-light emitting diode with higher luminous flux
Phuc Dang Huu
Phuc Dang Huu
,
Nguyen Le Thai
Nguyen Le Thai
and
Phan Xuan Le
Phan Xuan Le
| Sep 07, 2022
Materials Science-Poland
Volume 40 (2022): Issue 2 (August 2022)
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Published Online:
Sep 07, 2022
Page range:
159 - 169
Received:
Oct 13, 2021
Accepted:
Apr 27, 2022
DOI:
https://doi.org/10.2478/msp-2022-0014
Keywords
WLEDs
,
double-layer phosphor
,
Monte Carlo theory
,
color homogeneity
,
luminous flux
© 2022 Phuc Dang Huu et al., published by Sciendo
This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.
Fig. 1
(A) Photograph of the WLEDs, (B) illustration of WLEDs, (C) simulation of WLEDs, (D) the measured spectra of YAG:Ce3+ phosphor
Fig. 2
Simulated results of yellow-phosphor concentration when varying green-phosphor CdS:In concentration with increasing particle size: (A) 5000 K; (B) 5700 K; (C) 6500 K; (D) 8000 K
Fig. 3
The simulated WLEDs’ emission power when adding CdS:In phosphor
Fig. 4
The simulated angular-dependent CCTs when adding CdS:In green phosphor. CCT, correlated color temperature
Fig. 5
Simulated CRI values when varying green-phosphor CdS:In concentration with increasing particle size: (A) 5000 K; (B) 5700 K; (C) 6500 K; (D) 8000 K. CRI, color rendering index
Fig. 6
Simulated CQS values when varying green-phosphor CdS:In concentration with increasing particle size: (A) 5000 K; (B) 5700 K; (C) 6500 K; and (D) 8000 K. CQS, color quality scale
Fig. 7
Simulated luminous flux when varying green-phosphor CdS:In concentration with increasing particle size: (A) 5000 K; (B) 5700 K; (C) 6500 K; (D) 8000 K
The composition of CdS:In
Ingredient
Mole %
By weight
CdS
99%
1 g
In
2
O
3
1%
7.95 mg