<abstract xmlns="http://www.w3.org/1999/xhtml">

<p>A lumen efficiency (LE) simulation model with the Monte Carlo method is introduced to the white-light-emitting diode devices that utilize the red LED (light-emitting diode) dyes instead of red-emitting phosphors (R-WLEDs). By simulating this model, the desirable spectrum-related indices and photometric efficiencies, which are adequate for superior chromatic consistency (or R<sub><italic>f</italic></sub> > 97), can be accomplished for R-WLEDs under the correlated color temperature (CCT) range of 5000–8000 K. The structure of the R-LED has LEDs in red and blue colors (650 nm and 448 nm) combined with phosphors possessing yellow and green emissions (586 nm and 507 nm). In comparison with pc-WLEDs (WLEDs operating with conversion phosphors) and QD-WLEDs (WLED devices with quantum dots), pc/R-WLED devices could present its outperformance to the others and become a promising way to achieve remarkable chromatic generation, particularly under the condition of small color temperature limit, and act as a substitute for the pc-WLED devices.</p>
</abstract>

A lumen efficiency (LE) simulation model with the Monte Carlo method is introduced to the white-light-emitting diode devices that utilize the red LED (light-emitting diode) dyes instead of red-emitting phosphors (R-WLEDs). By simulating this model, the desirable spectrum-related indices and photometric efficiencies, which are adequate for superior chromatic consistency (or Rf > 97), can be accomplished for R-WLEDs under the correlated color temperature (CCT) range of 5000–8000 K. The structure of the R-LED has LEDs in red and blue colors (650 nm and 448 nm) combined with phosphors possessing yellow and green emissions (586 nm and 507 nm). In comparison with pc-WLEDs (WLEDs operating with conversion phosphors) and QD-WLEDs (WLED devices with quantum dots), pc/R-WLED devices could present its outperformance to the others and become a promising way to achieve remarkable chromatic generation, particularly under the condition of small color temperature limit, and act as a substitute for the pc-WLED devices.

Studying CdS:In green phosphor's impacts on white-light emitting diode with higher luminous flux

Faculty of Mechanical – Electrical and Computer Engineering, School of Engineering and Technology

Materials Science-Poland

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.

A lumen efficiency (LE) simulation model with the Monte Carlo method is introduced to the white-light-emitting diode devices that utilize the red LED...

Ingredient	Mole %	By weight
CdS	99%	1 g
In₂O₃	1%	7.95 mg

Studying CdS:In green phosphor's impacts on white-light emitting diode with higher luminous flux

Pubblicato online: 07 set 2022

Pagine: 159 - 169

Ricevuto: 13 ott 2021

Accettato: 27 apr 2022

DOI: https://doi.org/10.2478/msp-2022-0014

Parole chiave
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

Fig. 2

Fig. 3

Fig. 4

Fig. 5

Fig. 6

Fig. 7

The composition of CdS:In

Studying CdS:In green phosphor's impacts on white-light emitting diode with higher luminous flux

Pubblicato online: 07 set 2022

Pagine: 159 - 169

Ricevuto: 13 ott 2021

Accettato: 27 apr 2022

DOI: https://doi.org/10.2478/msp-2022-0014

Parole chiaveWLEDs, 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

Fig. 2

Fig. 3

Fig. 4

Fig. 5

Fig. 6

Fig. 7

The composition of CdS:In

Parole chiave
WLEDs, double-layer phosphor, Monte Carlo theory, color homogeneity, luminous flux