Design of Single-Phased Multicolor-Emission Phosphor for LED

Guo, Chongfeng; Suo, Hao

doi:10.1007/978-3-662-52771-9_15

Cited by 9 publications

(5 citation statements)

References 115 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…This unique anti-Stokes feature has enabled various applications over the past decade, spanning from solar energy harvesting, super-resolution microscopy, anti-counterfeit luminescent imprinting to agricultural crop care [2][3][4][5] . Among the various nanoparticle systems developed thus far, semiconductor nanocrystals or quantum dots (QDs) are widely used 6,7 . UCNPs typically consist of a NaYF4 crystalline host matrix doped with rare-earth-based lanthanide sensitizer and activator.…”

Section: Introductionmentioning

confidence: 99%

Enhancing the generating and collecting efficiency of single particle upconverting luminescence at low power excitation

Shan

Park

et al. 2020

Nanophotonics

View full text Add to dashboard Cite

Abstract Upconverting luminescent nanoparticles are photostable, nonblinking, and low chemically toxic fluorophores that are emerging as promising fluorescent probes at the single molecule level. High luminescence intensity upconversion nanoparticles (UCNPs) have previously been achieved by doping with high amounts of rare-earth ions using high excitation power (>2.5 MW/cm2). However, such particles are inadequate for in vitro live-cell imaging and single-particle tracking, as high excitation power can cause photodamage. Here, we compared UCNP luminescence intensities with different dopant concentrations and presented more efficient (about seven times) UCNPs at low excitation power by increasing the concentrations of Yb3+ and Tm3+ dopants (NaYF4: 60% Yb3+, 8% Tm3+) and adding a core-shell structure.

show abstract

Section: Introductionmentioning

confidence: 99%

Enhancing the generating and collecting efficiency of single particle upconverting luminescence at low power excitation

Shan

Park

et al. 2020

Nanophotonics

View full text Add to dashboard Cite

show abstract

“…Eu 2+ is the best-known and most widely used of a single-ion-activated multi-color phosphor. The 5d→4f energy transition of Eu 2+ is closely related to the crystal environment of the occupied sites, so single-phase-doped multi-color phosphors can be obtained by combining multiple cation sites in a single matrix with different crystal field environments [78,79]. Guo's group has studied the Eu 2+ -activated phosphors Ba 3 GdNa(PO 4 ) 3 F (BGNPF).…”

Section: Single-ion-doped Red and Blue Composite Phosphorsmentioning

confidence: 99%

Recent Advances in Light-Conversion Phosphors for Plant Growth and Strategies for the Modulation of Photoluminescence Properties

et al. 2023

View full text Add to dashboard Cite

The advent of greenhouses greatly promoted the development of modern agriculture, which freed plants from regional and seasonal constraints. In plant growth, light plays a key role in plant photosynthesis. The photosynthesis of plants can selectively absorb light, and different light wavelengths result in different plant growth reactions. Currently, light-conversion films and plant-growth LEDs have become two effective ways to improve the efficiency of plant photosynthesis, among which phosphors are the most critical materials. This review begins with a brief introduction of the effects of light on plant growth and the various techniques for promoting plant growth. Next, we review the up-to-date development of phosphors for plant growth and discussed the luminescence centers commonly used in blue, red and far-red phosphors, as well as their photophysical properties. Then, we summarize the advantages of red and blue composite phosphors and their designing strategies. Finally, we describe several strategies for regulating the spectral position of phosphors, broadening the emission spectrum, and improving quantum efficiency and thermal stability. This review may offer a good reference for researchers improving phosphors to become more suitable for plant growth.

show abstract

“…The wavelengths are produced according to manufacture standards. For example, 650 nm for red LED, 520 nm for green LED, 460 nm for blue LED, 570 nm for yellow LED, < 400 nm for UV LED (Abrate, 2014;Guo & Suo 2017;Hwang et al, 2017). White LED is a UV LED with the addition of phosphorus in the semiconductor hence it has a wavelength range of 520-660 nm (Jüstel, 2007).…”

Section: S Incertulas Attractancy To Various Led Colorsmentioning

confidence: 99%

Attraction of Yellow Stem Borer (Scirpophaga incertulas Walker) to Different Colored Light-emitting Diodes

Arialistya

Suputa

Trisyono

et al. 2019

JPTI

View full text Add to dashboard Cite

The yellow rice stem borer (Scirpophaga incertulas Walker) is a major pests on rice. Light traps have been used for monitoring and controlling S. incertulas with white and ultraviolet color light sources. The purpose of this research was to invent trap which uses an effective color that attracts S. incertulas. This research begins by sampling female S. incertulas pre-oviposition from the field then tested in the laboratory. The experiment was designed with factorial randomized block design with light colors and light intencity as factors. Light-emitting diodes used in this research, consisted of normal red, normal yellow, normal green, superbright red, superbright yellow, superbright green, superbright blue, UV, and white. LED white, UV, and superbright blue were attractive colors to S. incertulas when exposure time was 15 minutes. Effective light intencity to attract S. incertulas was 1000 lux.

show abstract

Design of Single-Phased Multicolor-Emission Phosphor for LED

Cited by 9 publications

References 115 publications

Enhancing the generating and collecting efficiency of single particle upconverting luminescence at low power excitation

Enhancing the generating and collecting efficiency of single particle upconverting luminescence at low power excitation

Recent Advances in Light-Conversion Phosphors for Plant Growth and Strategies for the Modulation of Photoluminescence Properties

Attraction of Yellow Stem Borer (Scirpophaga incertulas Walker) to Different Colored Light-emitting Diodes

Contact Info

Product

Resources

About