100% phosphorescence efficiency of Ir(III) complexes and the intermolecular interaction and concentration quenching in a solid state film

2005 ◽  
Author(s):  
Yuichiro Kawamura
Keyword(s):  
Solid State ◽  
Intermolecular Interaction ◽  
Concentration Quenching

Planar 2-(2-hydroxyphenyl)benzothiazole-based dyes functionalized via triple bonds as exceedingly efficient solid-state fluorophores

CrystEngComm ◽  
2017 ◽  
Vol 19 (35) ◽  
pp. 5178-5183 ◽  
Author(s):  
Yahui Niu ◽  
Longfei Xu ◽  
Qin Wang ◽  
Haoran Wu ◽  
Yanrong Zhang
Keyword(s):  
Solid State ◽  
Intermolecular Interaction ◽  
Triple Bonds

Two planar 2-(2-hydroxyphenyl)benzothiazole-based dyes without sterically bulky groups as exceedingly efficient solid-state fluorophores due to the absence of strong π–π intermolecular interaction.

scholarly journals Luminescence of Eu3+ in Some Scandium Phosphates

2021 ◽  
pp. 638-640
Author(s):  
Rajani A. Bhoyar ◽  
A. C. Nayak
Keyword(s):  
Solid State ◽  
Energy Levels ◽  
Concentration Quenching ◽  
Lanthanide Ions ◽  
Photoluminescence Properties ◽  
Trivalent Metal ◽  
Suitable Host ◽  
Relative Ease ◽  
Luminescence Efficiency ◽  
Light Lanthanides

Lanthanide ions are very efficient activators. Due to the presence of shielded 4f shell, the energy levels can be predicted with relative ease. Interaction with the surrounding lattice is minimum and luminescence efficiency is high. For this reason, many important phosphors having various applications have been discovered which use lanthanide activators. For obtaining efficient phosphors, it is important to find a suitable host for lanthanide activators which can accommodate these ions without concentration quenching. The hosts must be transparent to the emitted light. Lanthanides, most commonly occur as trivalent. Thus, hosts constituted by trivalent metals can be suitable. Yttrium compounds have been extensively studied as hosts. Scandium is another trivalent metal. Compared to the yttrium compounds, Scandium compounds have been very scarcely studied as hosts. We are investigating Scandium compounds as luminescence hosts. Synthesis and photoluminescence properties of Sr9 Sc (PO4)7 : Eu3+ and Sr8MgSc(PO4)7:Eu3+ phosphor are described in this work. The phosphors were prepared by solid state reaction. Usually, these phosphors are reduced and results on Eu2+ photoluminescence are reported. However, we have recorded photoluminescence before reduction and thus new results on Eu3+ emission could be obtained.

Tuning the solid-state emission by co-crystallization through σ- and π-hole directed intermolecular interactions

CrystEngComm ◽  
2019 ◽  
Vol 21 (12) ◽  
pp. 1940-1947 ◽  
Author(s):  
Rohit Bhowal ◽  
Suprakash Biswas ◽  
Devi Prasad Adiyeri Saseendran ◽  
Apurba L. Koner ◽  
Deepak Chopra
Keyword(s):  
Solid State ◽  
Intermolecular Interaction ◽  
Intermolecular Interactions

σ- and π-hole directed intermolecular interaction driven tuning of luminescence.

Polymorphic mechanoresponsive luminescent material based on a fluorene–phenanthroimidazole hybrid by modulation of intramolecular conformation and intermolecular interaction

CrystEngComm ◽  
2020 ◽  
Vol 22 (12) ◽  
pp. 2147-2157 ◽  
Author(s):  
Guowei Chen ◽  
Wen-Cheng Chen ◽  
Shaomin Ji ◽  
Peiqi Zhou ◽  
Ning Cai ◽  
...  
Keyword(s):  
Solid State ◽  
Intermolecular Interaction ◽  
Solid State Lighting ◽  
Luminescent Material

This study examined the multiple energetic pathways in solid-state photophysics, which are of increasing importance in solid-state lighting applications.

Effective hydrogen release from ammonia borane and sodium borohydride mixture through homopolar based dehydrocoupling driven by intermolecular interaction and restrained water supply

2020 ◽  
Vol 8 (36) ◽  
pp. 19050-19056
Author(s):  
Pei Pei ◽  
Mark Cannon ◽  
Grace Quan ◽  
Erik Kjeang
Keyword(s):  
Water Vapor ◽  
Solid State ◽  
Water Supply ◽  
Intermolecular Interaction ◽  
Sodium Borohydride ◽  
Ammonia Borane ◽  
Hydrogen Release ◽  
Catalytic Dehydrogenation ◽  
Effective Hydrogen

Non-catalytic dehydrogenation of solid-state ammonia borane and sodium borohydride mixtures is achieved in this work by water vapor facilitated hydrothermolysis.

scholarly journals Solid state concentration quenching of organic fluorophores in PMMA

2015 ◽  
Vol 17 (2) ◽  
pp. 1435-1440 ◽  
Author(s):  
Adam P. Green ◽  
Alastair R. Buckley
Keyword(s):  
Solid State ◽  
Methyl Methacrylate ◽  
Rhodamine 6G ◽  
Concentration Quenching ◽  
Organic Fluorophores ◽  
Poly Methyl Methacrylate ◽  
Coumarin 102 ◽  
State Concentration ◽  
Quenching Phenomenon

In this study the concentration quenching phenomenon is explored for seven organic singlet emitters (Rhodamine 6G, Pyridine 2, Lumogen F Red 305, Perylene, Coumarin 102, DCM and DCJTB) in an inert host of poly(methyl methacrylate) (PMMA).

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