Noble gas ion beam bombardment effects on H-, graphite -, Na-, Fe- and Zn-doped MgO thin films in plasma-related discharge devices

Asmae, Guennoun; Marsi, Meriem El; Fechtal, Imad; Elhaitamy, Ouafaa; Dezairi, A.

doi:10.1080/15421406.2020.1870028

Cited by 1 publication

(1 citation statement)

References 24 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Following this, studies placed their aim at creating various phosphors with null heat abatement, including those incorporated with Eu 2+ , Eu 3+ , Mn 2+ , Tb 3+ , Mn 4+ , as well as Sm 3+ . The sample Ca2InSbO6:Sm 3+ yielded null heat abatement when heat level reaches 480 K, an outcome expected for LED devices with significant performance (Guennoun et al, 2021). As such, the task of augmenting phosphors' heat abatement attributes remains particularly difficult when it comes to creating WLED devices based on conversion phosphor.…”

Section: Introductionmentioning

confidence: 99%

Improved Color Uniformity In White Light-Emitting Diodes Using LiLu(MoO4)2:Sm3+ Combined SiO2 Composite

Tung,

Thi,

Anh

2024

IJTech

View full text Add to dashboard Cite

The research herein concerns the composite of red phosphor of LiLu(MoO4)2:Sm 3+ (LMOS), yellow phosphor YAG:Ce 3+ , SiO2 particles, and silicone gel. The LMOS phosphor is created via the sol-gel procedure and supposed to yields significant heat consistency. The concentration of this LMOS phosphor is fixed at around 10 wt.% and the concentration of SiO2 particles is modifed. This is to influence the scattering performance of the composite to achieve the better color distribution. After sample creation, we analyzed the luminescence of the LMOS in the composite and the effects of the composite with different SiO2 dosages on the commercial light-emitting diode (LED). When excited via 405-nm ultraviolet, the samples generate red ray under 648 nm matching the shift between 4 G5/2 and 6 H9/2 for the ion of Sm 3+ . With high SiO2 amounts, the color difference is reduced, and the luminosity is enhanced. The correlated color temperature is also lower, resulting in a warmer white light for the packed LED. However, the color rendering index declines, which could be attributed to the green and blue color deficiency while the red color is dominant. From the tested outcomes, LiLu(MoO4)2:Sm 3+ @SiO2 composite is validated to be effective at improving chromatic uniformity for white-ray diodes.

show abstract

Section: Introductionmentioning

confidence: 99%