Nonclassical Tunability of Solid-State CD and CPL Properties of a Chiral 2-Naphthalenecarboxylic Acid/Amine Supramolecular Organic Fluorophore

2011 ◽  
Vol 7 (2) ◽  
pp. 360-366 ◽  
Author(s):  
Noriaki Nishiguchi ◽  
Takafumi Kinuta ◽  
Tomohiro Sato ◽  
Yoko Nakano ◽  
Hayato Tokutome ◽  
...  
Keyword(s):  
Solid State ◽  
Organic Fluorophore

A simple triazine (D-A) based organic fluorophore selective dual sensor for Copper(II) and dichromate ions and its solvatochromism, solid state sensing, logic gate applications

2019 ◽  
Vol 168 ◽  
pp. 123-133 ◽  
Author(s):  
Muniyasamy Harikrishnan ◽  
Velu Sadhasivam ◽  
Mathappan Mariyappan ◽  
Sepperumal Murugesan ◽  
Nelson Malini ◽  
...  
Keyword(s):  
Solid State ◽  
Logic Gate ◽  
Dual Sensor ◽  
Dichromate Ions ◽  
Organic Fluorophore

Solid-State Chiral Supramolecular Organic Fluorophore Having a π-Conjugated Phenylene Ethynylene Unit

2009 ◽  
Vol 2009 (33) ◽  
pp. 5760-5764 ◽  
Author(s):  
Takafumi Kinuta ◽  
Kensaku Kamon ◽  
Takunori Harada ◽  
Yoko Nakano ◽  
Nobuo Tajima ◽  
...  
Keyword(s):  
Solid State ◽  
Phenylene Ethynylene ◽  
Organic Fluorophore

Solid-State Optical Properties of a Chiral Supramolecular Organic Fluorophore Consisting of Fluorescent 1-Pyrenesulfonic Acid and Amine Molecules

2009 ◽  
Vol 2009 (19) ◽  
pp. 3244-3248 ◽  
Author(s):  
Yoshitane Imai ◽  
Katuzo Murata ◽  
Yoko Nakano ◽  
Takunori Harada ◽  
Tomohiro Sato ◽  
...  
Keyword(s):  
Optical Properties ◽  
Solid State ◽  
Organic Fluorophore

Control of solid-state chiral optical properties of a chiral supramolecular organic fluorophore consisting of 1-pyrenesulfonic acid and chiral amine molecules

CrystEngComm ◽  
2010 ◽  
Vol 12 (6) ◽  
pp. 1688 ◽  
Author(s):  
Yoshitane Imai ◽  
Katuzo Murata ◽  
Yoko Nakano ◽  
Takunori Harada ◽  
Takafumi Kinuta ◽  
...  
Keyword(s):  
Optical Properties ◽  
Solid State ◽  
Chiral Amine ◽  
Organic Fluorophore

Control of the Solid-State Chiral Optical Properties of a Supramolecular Organic Fluorophore Containing 4-(2-Arylethynyl)-Benzoic Acid

2011 ◽  
Vol 6 (4) ◽  
pp. 1092-1098 ◽  
Author(s):  
Noriaki Nishiguchi ◽  
Takafumi Kinuta ◽  
Yoko Nakano ◽  
Takunori Harada ◽  
Nobuo Tajima ◽  
...  
Keyword(s):  
Optical Properties ◽  
Solid State ◽  
Benzoic Acid ◽  
Organic Fluorophore

scholarly journals Slow recombination of spontaneously dissociated organic fluorophore excitons

2019 ◽  
Vol 10 (1) ◽  
Author(s):  
Takahiko Yamanaka ◽  
Hajime Nakanotani ◽  
Chihaya Adachi
Keyword(s):  
Solid State ◽  
Quantum Yield ◽  
Organic Molecules ◽  
Light Emission ◽  
Binding Energies ◽  
Electrical Excitation ◽  
Exciton Dissociation ◽  
Light Emitting ◽  
Solid Films ◽  
Organic Fluorophore

AbstractThe harvesting of excitons as luminescence by organic fluorophores forms the basis of light-emitting applications. Although high photoluminescence quantum yield is essential for efficient light emission, concentration-dependent quenching of the emissive exciton is generally observed. Here we demonstrate generation and accumulation of concentration-dependent “long-lived” (i.e., over 1 h) photo-generated carriers and the successive release of their energy as electroluminescence in a solid-state film containing a polar fluorophore. While fluorophore excitons are generally believed to be stable because of their high exciton binding energies, our observations show that some of the excitons undergo spontaneous exciton dissociation in a solid-state film by spontaneous orientation polarization even without an external electric field. These results lead to the reconsideration of the meaning of “luminescence quantum yield” for the solid films containing polar organic molecules because it can differ for optical and electrical excitation.

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