Narrow-band red-emitting KZnF3:Mn4+ fluoroperovskites: insights into electronic/vibronic transition and thermal quenching behavior

2018 ◽  
Vol 6 (40) ◽  
pp. 10845-10854 ◽  
Author(s):  
Tao Hu ◽  
Hang Lin ◽  
Fulin Lin ◽  
Yan Gao ◽  
Yao Cheng ◽  
...  
Keyword(s):  
Narrow Band ◽  
Thermal Quenching ◽  
Vibronic Transition ◽  
Crystallographic Site ◽  
Coordination Environment ◽  
Site Occupation ◽  
Local Coordination ◽  
Depth Study

An in-depth study on a new red-emitting KZnF3:Mn4+ fluoroperovskite reveals the electronic/vibronic transition, the local coordination environment, the multiple crystallographic site occupation, and the thermal quenching behavior, of Mn4+.

Moisture-resistant and highly efficient narrow-band red-emitting fluoride phosphor K2NaGaF6:Mn4+ for warm white LED application

2019 ◽  
Vol 7 (26) ◽  
pp. 7906-7914 ◽  
Author(s):  
Jun Gao ◽  
Haomiao Zhu ◽  
Renfu Li ◽  
Decai Huang ◽  
Benlong Luo ◽  
...  
Keyword(s):  
Narrow Band ◽  
White Led ◽  
Site Occupation ◽  
Highly Efficient ◽  
Moisture Resistant

The site occupation/evolution of Mn4+ ions in K2NaGaF6 crystals and their excellent moisture-resistant performance.

A narrow-band blue emitting phosphor Ca8Mg7Si9N22:Eu2+ for pc-LEDs

2019 ◽  
Vol 7 (13) ◽  
pp. 3730-3734 ◽  
Author(s):  
Chao Li ◽  
Xiao-Ming Wang ◽  
Feng-Feng Chi ◽  
Zu-Pei Yang ◽  
Huan Jiao
Keyword(s):  
Emission Intensity ◽  
Room Temperature ◽  
Narrow Band ◽  
Blue Emission ◽  
Thermal Quenching ◽  
Unit Cell ◽  
Photoluminescence Emission ◽  
Space Group

Ca8Mg7Si9N22 crystallizes in a tetragonal space group P42/nmc (No. 137) with a unit cell of a = 7.3271(11) Å and c = 10.336(2) Å. Ca8Mg7Si9N22:Eu2+ shows a narrow-band blue emission peaking at 400 nm with an intriguing bandwidth ∼34 nm and shows remarkably high thermal quenching resistance, maintaining 92% photoluminescence emission intensity at 420 K and 75% at 700 K of that measured at room temperature.

scholarly journals Modulating the local coordination environment of single-atom catalysts for enhanced catalytic performance

Nano Research ◽  
2020 ◽  
Vol 13 (7) ◽  
pp. 1842-1855 ◽  
Author(s):  
Xinyuan Li ◽  
Hongpan Rong ◽  
Jiatao Zhang ◽  
Dingsheng Wang ◽  
Yadong Li
Keyword(s):  
Catalytic Performance ◽  
Single Atom ◽  
Coordination Environment ◽  
Local Coordination

Probing the influence of local coordination environment on ligand binding in nickel hydrogenase model complexes

1993 ◽  
Vol 32 (25) ◽  
pp. 5868-5877 ◽  
Author(s):  
Mikyung Cha ◽  
Christine L. Gatlin ◽  
Susan C. Critchlow ◽  
Julie A. Kovacs
Keyword(s):  
Ligand Binding ◽  
Model Complexes ◽  
Coordination Environment ◽  
Local Coordination

Substrate and co-catalyst effects on the local coordination environment of a Fe–porphyrin catalyst

2010 ◽  
Vol 494 (4-6) ◽  
pp. 289-294 ◽  
Author(s):  
Konstantinos C. Christoforidis ◽  
Maria Louloudi ◽  
Yiannis Deligiannakis
Keyword(s):  
Co Catalyst ◽  
Coordination Environment ◽  
Local Coordination

Probing the local coordination environment and nuclearity of uranyl(vi) complexes in non-aqueous media by emission spectroscopy

2011 ◽  
Vol 40 (15) ◽  
pp. 3914 ◽  
Author(s):  
Michael P. Redmond ◽  
Stephanie M. Cornet ◽  
Sean D. Woodall ◽  
Daniel Whittaker ◽  
David Collison ◽  
...  
Keyword(s):  
Emission Spectroscopy ◽  
Aqueous Media ◽  
Coordination Environment ◽  
Local Coordination

scholarly journals Fine-Grained Frequencies Meet Synchronous Transmission

2021 ◽  
Author(s):  
Jagnyashini Debadarshini ◽  
Sudipta Saha
Keyword(s):  
Narrow Band ◽  
Group Communication ◽  
Group Formation ◽  
Synchronous Communication ◽  
Center Frequency ◽  
Fine Grained ◽  
Frequency Capture ◽  
Maximum Benefit ◽  
Depth Study ◽  
Frequency Distance

<div>Fine-grained frequencies have been used in several recent works to enhance network throughput as well as combat Cross Technology Interference (CTI) issues in licence free ISM bands. We observe that synchronous communication based strategies, due to the scope of inter-frequency capture-effect, are inherently more capable of supporting in-parallel communication over multiple channels even when the Center Frequency Distance (CFD) of the channels are very low (<5 MHz). In this work, we pursue an in-depth study of how fine-grained frequencies can be used in conjunction with synchronous communication to extract the maximum benefit from a very narrow band of available frequencies (e.g., 2- 5 MHz) for in-parallel intra-group communication. In this direction, we propose a simple and efficient group formation strategy to automatically define groups in a given WSN/IoT network to boost up in-parallel intra-group communication efficiency. Through extensive experimental evaluations in existing WSN/IoT testbeds, we show that in-parallel one-to-all dissemination in the groups formed through the proposed strategy can execute with upto 73% higher reliability while consuming upto 41% lower energy as compared to the same running among the groups formed through naive strategy with only 4 consecutive frequencies separated by 1 MHz and upto 20 groups.</div>

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