Donor-Acceptor Based Solvent-free Organic Liquid Hybrids with Exciplex Emission and Room Temperature Phosphorescence

2022 ◽  
Author(s):  
Vivek Chandrakant Wakchaure ◽  
Sairam D. Veer ◽  
Aakash D. Nidhankar ◽  
Goudappagouda Patil ◽  
Rashmi Nayak ◽  
...  
Keyword(s):  
Quantum Yield ◽  
Room Temperature ◽  
Organic Liquid ◽  
Solvent Free ◽  
Organic Liquids ◽  
High Quantum Yield ◽  
Room Temperature Phosphorescence ◽  
Recent Developments ◽  
Exciplex Emission ◽  
Donor Acceptor

Solvent-free organic liquids have been known for their excellent luminescent features. Hence, the recent developments in this area have marked them as potential emitters with high quantum yield and enhanced...

Ultralong lifetime room temperature phosphorescence and dual-band waveguide behavior of phosphoramidic acid oligomers

2020 ◽  
Vol 8 (22) ◽  
pp. 7330-7335 ◽  
Author(s):  
Zheng-Fei Liu ◽  
Xue Chen ◽  
Wei Jun Jin
Keyword(s):  
Quantum Yield ◽  
Optical Waveguide ◽  
Room Temperature ◽  
Dual Band ◽  
High Quantum Yield ◽  
Room Temperature Phosphorescence ◽  
Phosphorescence Lifetime ◽  
High Quantum ◽  
New System

The phosphoramidic acid oligomer as an organic non-conjugated RTP system is proposed. The new system not only has ultralong phosphorescence lifetime up to 777 ms and high quantum yield, but also displays dual-band optical waveguide behavior.

An Excimer to Exciplex Transition through Realization of Donor-Acceptor Interaction in Luminescent Solvent-free Liquid

Nanoscale ◽  
2021 ◽  
Author(s):  
Vivek Wakchaure ◽  
Goudappagouda Patil ◽  
Tamal Das ◽  
Sapna Ravindranathan ◽  
Santhosh Babu Sukumaran
Keyword(s):  
Quantum Yield ◽  
Solvent Free ◽  
Organic Liquids ◽  
Luminescent Materials ◽  
Acceptor Interaction ◽  
Donor Acceptor ◽  
Color Tunability

Luminescent solvent-free organic liquids are known for their enhanced quantum yield, color tunability, and availability of a matrix for other dopants to generate hybrid luminescent materials with improved features for...

scholarly journals Regioisomeric Effect on the Excited-State Fate Leading to Room-Temperature Phosphorescence or Thermally Activated Delayed Fluorescence in a Dibenzophenazine-Cored Donor–Acceptor–Donor System

2021 ◽  
Author(s):  
Takumi Hosono ◽  
Nicolas Oliveira Decarli ◽  
Paola Zimmermann Crocomo ◽  
Tsuyoshi Goya ◽  
Leonardo Evaristo de Sousa ◽  
...  
Keyword(s):  
Excited State ◽  
Room Temperature ◽  
Delayed Fluorescence ◽  
Quantum Yields ◽  
Room Temperature Phosphorescence ◽  
Thermally Activated Delayed Fluorescence ◽  
Light Emitting ◽  
Thermally Activated ◽  
Donor Acceptor ◽  
Emission Behavior

Exploring design principle for switching thermally activated dealyed fluorescecne (TADF) and room temperature phosphorescence (RTP) is a fundamentally imporant research in developing triplet-mediated photofunctional organic materials. Herein systematic studies on the regioisomeric and substituents effects in a twisted donor–acceptor–donor (D–A–D) scaffold (A = dibenzo[a,j]phenazine; D = dihydrophenazasiline) on the fate of the excited state have been performed. The study revealed that the regiosiomerism clearly affects the emission behavior of the D–A–D compounds. Distinct difference in TADF, dual TADF & RTP, and dual RTP were observed, depending on the host used. Furthermore, OLED organic light-emitting diodes (OLEDs) fabricated with the developed emitters achieved high external quantum yields for RTP-based OLEDS up to 7.4%.

Achieving high quantum yield charge separation in porphyrin-containing donor-acceptor molecules at 10 K

1988 ◽  
Vol 110 (21) ◽  
pp. 7219-7221 ◽  
Author(s):  
Michael R. Wasielewski ◽  
Douglas G. Johnson ◽  
Walter A. Svec ◽  
Kristin M. Kersey ◽  
David W. Minsek
Keyword(s):  
Quantum Yield ◽  
Charge Separation ◽  
High Quantum Yield ◽  
High Quantum ◽  
Donor Acceptor ◽  
Acceptor Molecules

scholarly journals Enhanced phosphorescence properties of a Pt-porphyrin derivative fixed on the surface of nano-porous glass

2018 ◽  
Vol 17 (5) ◽  
pp. 622-627 ◽  
Author(s):  
Toshiko Mizokuro ◽  
Aizitiaili Abulikemu ◽  
Yusuke Sakagami ◽  
Tetsuro Jin ◽  
Kenji Kamada
Keyword(s):  
Quantum Yield ◽  
Porous Glass ◽  
Room Temperature ◽  
Nanometer Scale ◽  
Room Temperature Phosphorescence ◽  
Porphyrin Derivative

Room-temperature phosphorescence of a Pt-porphyrin derivative was enhanced in quantum yield and lifetime by fixing it on the surface of nanometer-scale pores of porous glass.

Room temperature columnar mesomorphism and high quantum yield phosphorescence in ionic ruthenium(ii) 2,2′-bipyridine-based complexes

2009 ◽  
Vol 19 (41) ◽  
pp. 7643 ◽  
Author(s):  
Daniela Pucci ◽  
Anna Bellusci ◽  
Alessandra Crispini ◽  
Mauro Ghedini ◽  
Nicolas Godbert ◽  
...  
Keyword(s):  
Quantum Yield ◽  
Room Temperature ◽  
High Quantum Yield ◽  
High Quantum

Continuous wave pumped single-mode nanolasers in inorganic perovskites with robust stability and high quantum yield

Nanoscale ◽  
2018 ◽  
Vol 10 (28) ◽  
pp. 13565-13571 ◽  
Author(s):  
Li Jiang ◽  
Renming Liu ◽  
Rongling Su ◽  
Ying Yu ◽  
Haofei Xu ◽  
...  
Keyword(s):  
Quantum Yield ◽  
Robust Stability ◽  
Room Temperature ◽  
Continuous Wave ◽  
Single Mode ◽  
Narrow Linewidth ◽  
High Quantum Yield ◽  
Inorganic Perovskite ◽  
High Quantum ◽  
One Step

A one-step and surfactant-free method is proposed to synthesize inorganic perovskite (CsPbX3, X = Cl, Br, I) nanowires at room temperature. The as-prepared CsPbX3 nanowires exhibit high lasing quantum yield, single-mode lasing with ultra-narrow linewidth.

Highly Efficient Purely Organic Room-Temperature Phosphorescence Film based on a Selenium-Containing Emitter for Sensitive Oxygen Detection

2021 ◽  
Author(s):  
Shuai Wang ◽  
Haiyang Shu ◽  
Xianchao Han ◽  
Xiaofu Wu ◽  
Hui Tong ◽  
...  
Keyword(s):  
Room Temperature ◽  
Room Temperature Phosphorescence ◽  
Oxygen Detection ◽  
Highly Efficient ◽  
Donor Acceptor

Developing pure organic room temperature phosphorescence (RTP) materials with high phosphorescence efficiency in film states is important for their applications but remains a great challenge. Herein, a donor-acceptor type RTP...

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