Utilizing Tb3+ as an energy transfer bridge to connect Eu2+–Sm3+ luminescent centers: realization of efficient Sm3+ red emission under near-UV excitation

2013 ◽  
Vol 49 (26) ◽  
pp. 2664 ◽  
Author(s):  
Yongchao Jia ◽  
Wei Lü ◽  
Ning Guo ◽  
Wenzhen Lü ◽  
Qi Zhao ◽  
...  
Keyword(s):  
Energy Transfer ◽  
Red Emission ◽  
Luminescent Centers ◽  
Uv Excitation

Luminescence and energy transfer of La5Si2BO13: A (A=Ce3+/Tb3+/Eu3+/Sm3+) phosphors under UV excitation

2015 ◽  
Vol 143 ◽  
pp. 71-74 ◽  
Author(s):  
Xinguo Zhang ◽  
Jilin Zhang ◽  
Menglian Gong
Keyword(s):  
Energy Transfer ◽  
Uv Excitation

Dazzling green emission from graphene oxide nanosheet-embedded co-doped Ce3+ and Tb3+:PVA polymer nanocomposites for photonic applications

RSC Advances ◽  
2016 ◽  
Vol 6 (59) ◽  
pp. 54525-54538 ◽  
Author(s):  
K. Naveen Kumar ◽  
R. Padma ◽  
J. L. Rao ◽  
Misook Kang
Keyword(s):  
Graphene Oxide ◽  
Energy Transfer ◽  
Polymer Nanocomposites ◽  
Green Emission ◽  
Graphene Oxide Nanosheet ◽  
Uv Excitation ◽  
Co Doped

Novel dazzling green emission has been obtained from graphene oxide nanosheet-embedded Ce3+ and Tb3+:PVA polymer nanocomposites under UV excitation. The green emission of Tb3+ is enhanced by an energy transfer from Ce3+ to Tb3+ and GO NS to Tb3+.

Preparation of quantum dot/polymer light conversion films with alleviated Förster resonance energy transfer redshift

2015 ◽  
Vol 3 (1) ◽  
pp. 196-203 ◽  
Author(s):  
Chih-Jung Chen ◽  
Chee-Cheng Lin ◽  
Jiun-Yi Lien ◽  
Sue-Lein Wang ◽  
Ray-Kuang Chiang
Keyword(s):  
Energy Transfer ◽  
Quantum Dot ◽  
Resonance Energy Transfer ◽  
Resonance Energy ◽  
Forster Resonance Energy Transfer ◽  
Förster Resonance Energy Transfer ◽  
Red Emission ◽  
Förster Resonance

A hybrid QD/polymer light conversion film containing both green- and red-emission QD nanoclusters shows minimized G/R FRET effect.

Efficient Sensitization of Eu3+ Emission by Tb3+ in Ba3La(PO4)3 under VUV-UV Excitation: Energy Transfer and Tunable Emission

2012 ◽  
Vol 116 (30) ◽  
pp. 15932-15937 ◽  
Author(s):  
Caihua Zhang ◽  
Hongbin Liang ◽  
Su Zhang ◽  
Chunmeng Liu ◽  
Dejian Hou ◽  
...  
Keyword(s):  
Energy Transfer ◽  
Excitation Energy ◽  
Excitation Energy Transfer ◽  
Uv Excitation ◽  
Tunable Emission

Luminescence and Tm3+-to-Dy3+ energy transfer in TeO2:ZnO glass under NIR/UV excitation

2019 ◽  
Vol 215 ◽  
pp. 116706 ◽  
Author(s):  
R.T. Alves ◽  
F.G. Rego-Filho ◽  
F.P.S. Santos ◽  
A.C.A. Silva ◽  
N.O. Dantas ◽  
...  
Keyword(s):  
Energy Transfer ◽  
Uv Excitation

scholarly journals Novel Tunable Green-Red Luminescence in Mn2+ Doped Ca9Tb(PO4)7 Phosphors Based on the Mn2+ Regulation and Energy Transfer

Coatings ◽  
2020 ◽  
Vol 10 (10) ◽  
pp. 952
Author(s):  
Bingwen Yang ◽  
Yefeng Feng ◽  
Qinghu Zhao ◽  
Miao He ◽  
Yang Lv
Keyword(s):  
Energy Transfer ◽  
Green Emission ◽  
Energy Transfer Mechanism ◽  
Red Emission ◽  
Broadband Emission ◽  
Characteristic Emission ◽  
Potential Applications ◽  
Light Excitation ◽  
Red Luminescence ◽  
Thermal Stability Of

β-Ca3(PO4)2 type phosphors Ca9Tb(PO4)7:Mn2+ were fabricated by high temperature solid state reaction. Under 377 nm light excitation, the Ca9Tb(PO4)7 host displays the green emission attributable to the characteristic emission of Tb3+ ions peaking at 488, 542, 586, and 620 nm, respectively. The red broadband emission is observed when Ca9Tb(PO4)7 is doped with Mn2+ ions. The emission is attributed to the energy transfer from Tb3+ to Mn2+ ions; this facilitates the realization of the tunable green–red emission. The energy transfer mechanism from Tb3+ to Mn2+ is defined as quadrupole–quadrupole interaction. Furthermore, the thermal stability of Ca9Tb(PO4)7:Mn2+ samples has been studied, and it can maintain half the emission intensity exceeding 424 K. This demonstrates their potential applications in white light LEDs (w-LEDs).

scholarly journals Optical Investigation of Eu3+ Doped Bi12GeO20 (BGO) Crystals

Crystals ◽  
2020 ◽  
Vol 10 (4) ◽  
pp. 285 ◽  
Author(s):  
M. Kowalczyk ◽  
T.F. Ramazanova ◽  
V.D. Grigoryeva ◽  
V.N. Shlegel ◽  
M. Kaczkan ◽  
...  
Keyword(s):  
Energy Transfer ◽  
Room Temperature ◽  
Transition Probabilities ◽  
Spectroscopic Properties ◽  
Electric Dipole Transition ◽  
Optical Investigation ◽  
Bulk Crystals ◽  
Czochralski Technique ◽  
Uv Excitation ◽  
Transfer Mechanisms

The spectroscopic properties of Eu3+ doped Bi12GeO20 (BGO) sillenite bulk crystals that were grown by the low-thermal-gradient Czochralski technique (LTG Cz) were investigated. The absorption spectra and the emission properties have been measured at room temperature (300 K) and at 10 K. Luminescence was observed both due to the direct Eu3+ ion excitation, as well as under UV excitation due to the energy transfer between Bi3+ and Eu3+ ions. Bi3+ → Eu3+ energy transfer mechanisms in Eu3+:BGO doped host were investigated. The Ωλ parameters, as well as radiative lifetimes, were calculated based upon the Judd-Ofelt formalism. The branching ratios and electric dipole transition probabilities were also determined, based upon the obtained experimental results. Luminescence has been observed from the 5D0,1,2 levels of Eu3+, with emissions from the 5D0 level being the strongest. The strongest observed luminescence band corresponds to the 5D0 → 7F0 transition at 578.7 nm. Reasons for the strong presence of the theoretically forbidden 5D0 → 7F0 emission were investigated.

Ultrahigh-Energy-Transfer Efficiency and Efficient Mn2+ Red Emission Realized by Structural Confinement in Ca9LiMn(PO4)7:Eu2+,Tb3+ Phosphor

2020 ◽  
Vol 59 (20) ◽  
pp. 15050-15060
Author(s):  
Xinguo Zhang ◽  
Jiabao Luo ◽  
Zishan Sun ◽  
Weiying Zhou ◽  
Zhan-Chao Wu ◽  
...  
Keyword(s):  
Energy Transfer ◽  
Energy Transfer Efficiency ◽  
Transfer Efficiency ◽  
Ultrahigh Energy ◽  
Red Emission
Sign in / Sign up

Export Citation Format

Share Document