AI Article Synopsis
- The study focuses on analyzing glass containing different rare earth ions, such as Eu and Dy, mixed with nanodiamond powder to create white light-emitting properties.
- The research utilized various optical techniques to measure absorption, photoluminescence, and colorimetry, suggesting new methods for assessing luminescence characteristics.
- Ultimately, the findings contribute to a better understanding of how to design materials for tunable white light-emitting devices by investigating the effects of different ionic components and excitation wavelengths on emission properties.
Article Abstract
A thorough analysis of glass containing Eu O and Dy O , or Eu O , Dy O , and CuO melted together with nanodiamond powder was pursued based on measurements of optical absorption, photoluminescence (PL) emission and excitation spectra, and colorimetry. Nanodiamond facilitated the stabilization of Cu and Eu ions with blue-emitting characteristics that, along with yellow-emitting Dy and red-emitting Eu led to the white light-emitting glass. Novel intensity notations implemented in intensity-based spectral ratios, and difference intensity correlation analysis were proposed for the assessment of PL properties. The chromaticity and correlated colour temperature of the emission were ultimately investigated as a two-parametric problem based on: (1) the different ionic components; and (2) the various excitation wavelengths employed. The optical analysis approach adds to the characterization methods to further fundamental understanding and provide helpful analytical tools for designing materials for tunable white light-emitting devices.
Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.1002/bio.4447 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
A narrow band blue phosphor NaBaAlBOCl:Eu for white light emitting diodes.
Dalton Trans
January 2025
Northwest Institute for Nonferrous Metal Research, Xi'an 710016, China.
Exploring new photoexcited phosphors has attracted attention for improving the performance of white LEDs. Here, an NaBaAlBOCl:Eu phosphor with high color purity (94.11%) has been synthesized.
View Article and Find Full Text PDFVisible to near-infrared emissions of BiMoO: Pr multifunctional phosphors for multi-mode temperature sensing, white LEDs and bioimaging.
Spectrochim Acta A Mol Biomol Spectrosc
December 2024
School of Science, Dalian Maritime University, Dalian, Liaoning 116026, PR China. Electronic address:
Research on multifunctional luminous materials has garnered a lot of interest in the fields of optical sensing, biological imaging, white light-emitting diodes illumination, etc. A novel multifunctional phosphor of Pr-doped BiMoO (BMO: Pr), created via the solid-state method, was investigated in this work. X-ray diffraction, scanning electron microscopy, diffuse reflectance spectroscopy, photoluminescence spectra, and fluorescence decay curves were employed to analyze the produced phosphors.
View Article and Find Full Text PDFBlue Light Damages Retinal Ganglion Cells Via Endoplasmic Reticulum Stress and Autophagy in Chickens.
Invest Ophthalmol Vis Sci
January 2025
Laboratory of Anatomy of Domestic Animals, National Key Laboratory of Veterinary Public Health and Safety, College of Veterinary Medicine, China Agricultural University, Haidian, Beijing, China.
Purpose: Because chickens have excellent light perception properties, this study focused on investigating whether monochromatic light can cause photodamage in chicken retinal ganglion cells (RGCs).
Methods: Post-hatching day chickens were exposed to four different light-emitting diode light environments for five weeks, respectively, monochromatic blue light (480 nm), green light (560 nm), red light (660 nm), or white light (6000 K). The mechanisms through which monochromatic light influences the structure of the chicken retina were analyzed by detecting the morphological structure of the retina, gene and protein expression levels, and the ultrastructure of the optic nerve.
High correlated color temperature white light-emitting diodes disrupt refractive development in guinea pigs.
Heliyon
November 2024
Department of Ophthalmology, The Second Hospital of Jilin University, Changchun, China.
Ubiquitous white light-emitting diodes (LEDs) possess optical properties that differ from those of natural light. This difference can impact visual perception and biological functions, thus potentially affecting eye health. Myopia, which leads to visual impairments and potentially irreversible vision loss or blindness, is the most prevalent refractive error worldwide.
View Article and Find Full Text PDFRepeated exposure to low doses of light induces retinal damage in vivo in a wavelength-dependent manner.
Ecotoxicol Environ Saf
December 2024
Centre de Recherche des Cordeliers, INSERM UMRS 1138, Université Paris Cité, Sorbonne Université. Team: Physiopathology of Ocular Diseases: Therapeutic Innovations. 15, rue de l'école de Médecine Paris 75006, France. Electronic address:
The exposure of the general population to artificial light at night has dramatically increased in recent decades. Current standards for domestic lighting are based on acute exposure to light and consider blue wavelengths to be responsible for phototoxicity. However, meta-analyses pointed out the role of lifelong light exposure in the onset of age-related macular degeneration, suggesting a cumulative effect of light exposure.
View Article and Find Full Text PDFWant AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!