2017
DOI: 10.1021/acsami.6b15323
|View full text |Cite
|
Sign up to set email alerts
|

Mechanisms of Energy Transfer and Enhanced Stability of Carbidonitride Phosphors for Solid-State Lighting

Abstract: Phosphor-converted light emitting diodes (pcLEDs) produce white light through the use of phosphors that convert blue light emitted from the LED chip into green and red wavelengths. Understanding the mechanisms of degradation of the emission spectra and quantum yields of the phosphors used in pcLEDs is of critical importance to fully realize the potential of solid-state lighting as an energy efficient technology. Toward this end, time-resolved photoluminescence spectroscopy was used to identify the mechanistic … Show more

Help me understand this report

Search citation statements

Order By: Relevance

Paper Sections

Select...
3
2

Citation Types

0
5
0

Year Published

2018
2018
2025
2025

Publication Types

Select...
6

Relationship

0
6

Authors

Journals

citations
Cited by 7 publications
(5 citation statements)
references
References 37 publications
0
5
0
Order By: Relevance
“…d i s c o v e r e d a n e w b l u e -e m i t t i n g Sr 3 Si 4 or Al(C,N) 4 tetrahedral building blocks, which can be considered as the partial substitution of N by C. As the Si−C bond is stronger than the Si−N bond, the structural rigidity increases with the substitution, which thus leads to high thermal stability of carbidonitride phosphors. 82,104,190 Sr 2 Si 5 N 8 :Eu 2+ is a very efficient red phosphor for wLEDs, but its large thermal degradation prevents it from practical applications. 191,192 To solve this problem, Tian et 104 The carbidonitride phosphor exhibits a single emission band centered at 472−477 nm.…”
Section: Eu 2+ -Doped Down-conversion Nitride Materialsmentioning
confidence: 99%
See 2 more Smart Citations
“…d i s c o v e r e d a n e w b l u e -e m i t t i n g Sr 3 Si 4 or Al(C,N) 4 tetrahedral building blocks, which can be considered as the partial substitution of N by C. As the Si−C bond is stronger than the Si−N bond, the structural rigidity increases with the substitution, which thus leads to high thermal stability of carbidonitride phosphors. 82,104,190 Sr 2 Si 5 N 8 :Eu 2+ is a very efficient red phosphor for wLEDs, but its large thermal degradation prevents it from practical applications. 191,192 To solve this problem, Tian et 104 The carbidonitride phosphor exhibits a single emission band centered at 472−477 nm.…”
Section: Eu 2+ -Doped Down-conversion Nitride Materialsmentioning
confidence: 99%
“…This covers several important issues: (i) materials discovery, to search for emerging luminescent materials with new crystal structures and promising luminescent properties by applying developed methodologies; ,, (ii) synthetic strategies, to develop appropriate synthetic routes to luminescent materials with controlled particle size, morphology, and crystallinity, enhanced luminescence or low cost; ,,, (iii) structural analysis, to clarify the overall crystal structure, local coordination environment, covalence state of activators, structure distortion, structure ordering, and disordering; (iv) materials computation, to understand the electronic/band structure, Debye temperature, and dielectric constants of luminescent materials and link them to luminescent properties, thermal stability, and structural rigidity of luminescent materials by using the first-principle calculation, density function theory, molecular dynamics, etc. ; (v) luminescent property tailoring, to enhance and tune the luminescent properties by controlling the local structure/coordination environment via substitutions and to improve the reliability of luminescent materials via surface engineering; ,,, (vi) applications, to testify the suitability of luminescent materials in SSL, and apply them in white LEDs/LDs for use in general lighting, backlighting, vehicle headlighting, projectors, and even agricultural lighting. ,,, In this paper, we will focus on most of these issues and carry out a comprehensive review of luminescent nitride materials.…”
Section: Selection Of Down-conversion Luminescent Materials For Solid...mentioning
confidence: 99%
See 1 more Smart Citation
“…[17] Therefore, another completely different method is to adjust the overall lattice property and local coordination environment of the activator through chemical unit substitution, so as to improve the intrinsic luminescent thermal stability of the phosphor itself. Such methods include the introduction of carbon and oxygen into Sr 2 Si 5 N 8 :Eu 2+ by Tian et al [18] and Grieco et al, [19] and the introduction of boron into Sr 2 Si 5 N 8 :Eu 2+ by Shen et al, [20] all of which can improve the thermal stability of luminescence but to a limited and small extent. Liu et al substituted (Ca 0.55 Ba 0.45 ) 2+ for Sr 2+ [16] and our previously reported co-substitution of Ba 2+ -(AlO) + for Sr 2+ -(SiN) + .…”
Section: Introductionmentioning
confidence: 99%
“…Such methods include the introduction of carbon and oxygen into Sr 2 Si 5 N 8 :Eu 2+ by Tian et al. [ 18 ] and Grieco et al., [ 19 ] and the introduction of boron into Sr 2 Si 5 N 8 :Eu 2+ by Shen et al., [ 20 ] all of which can improve the thermal stability of luminescence but to a limited and small extent. Liu et al.…”
Section: Introductionmentioning
confidence: 99%