Switching of the Triplet–Triplet-Annihilation Upconversion with Photoresponsive Triplet Energy Acceptor: Photocontrollable Singlet/Triplet Energy Transfer and Electron Transfer

2015 ◽  
Vol 119 (3) ◽  
pp. 468-481 ◽  
Author(s):  
Kejing Xu ◽  
Jianzhang Zhao ◽  
Xiaoneng Cui ◽  
Jie Ma
Keyword(s):  
Electron Transfer ◽  
Energy Transfer ◽  
Triplet Energy ◽  
Triplet Energy Transfer ◽  
Energy Acceptor ◽  
Triplet Triplet Annihilation

Triplet–triplet annihilation upconversion through triplet energy transfer at a nanoporous solid–liquid interface

2020 ◽  
Vol 22 (32) ◽  
pp. 17807-17813
Author(s):  
Toshiko Mizokuro ◽  
Aizitiaili Abulikemu ◽  
Kengo Suzuki ◽  
Yusuke Sakagami ◽  
Ritsuki Nishii ◽  
...  
Keyword(s):  
Energy Transfer ◽  
Liquid Interface ◽  
Triplet Energy ◽  
Nanoporous Glass ◽  
Solid Liquid Interface ◽  
Solid Liquid ◽  
Triplet Energy Transfer ◽  
Triplet Triplet Annihilation

Photon upconversion and the triplet energy transfer dynamics were studied for sensitizer-fixed nanoporous glass immersed in emitter solution.

Electrochemically triggered upconverted luminescence for light-emitting devices

2019 ◽  
Vol 55 (84) ◽  
pp. 12611-12614 ◽  
Author(s):  
Haruki Minami ◽  
Takuya Ichikawa ◽  
Kazuki Nakamura ◽  
Norihisa Kobayashi
Keyword(s):  
Energy Transfer ◽  
Triplet Energy ◽  
Light Emitting ◽  
Light Emitting Devices ◽  
Triplet Energy Transfer ◽  
First Time ◽  
Triplet Triplet Annihilation

Electrochemically triggered upconverted luminescence through triplet–triplet energy transfer (TTET) and subsequent triplet–triplet annihilation upconversion (TTA-UC) is observed for the first time.

scholarly journals Sensitization of ultra-long-range excited-state electron transfer by energy transfer in a polymerized film

2012 ◽  
Vol 109 (38) ◽  
pp. 15132-15135 ◽  
Author(s):  
Akitaka Ito ◽  
David J. Stewart ◽  
Zhen Fang ◽  
M. Kyle Brennaman ◽  
Thomas J. Meyer
Keyword(s):  
Electron Transfer ◽  
Energy Transfer ◽  
Excited State ◽  
Charge Transfer ◽  
Long Range ◽  
Methyl Viologen ◽  
Polymer Network ◽  
Triplet Energy ◽  
Ligand Charge Transfer ◽  
Triplet Energy Transfer

Distance-dependent energy transfer occurs from the Metal-to-Ligand Charge Transfer (MLCT) excited state to an anthracene-acrylate derivative (Acr-An) incorporated into the polymer network of a semirigid poly(ethyleneglycol)dimethacrylate monolith. Following excitation, to Acr-An triplet energy transfer occurs followed by long-range, Acr-3An—Acr-An → Acr-An—Acr-3An, energy migration. With methyl viologen dication (MV2+) added as a trap, Acr-3An + MV2+ → Acr-An+ + MV+ electron transfer results in sensitized electron transfer quenching over a distance of approximately 90 Å.

P-Typ-verzögerte Fluoreszenz von 1-Naphthyl-9-carbazyl-methan

1986 ◽  
Vol 41 (7) ◽  
pp. 971-973
Author(s):  
Maximilian Zander
Keyword(s):  
Energy Transfer ◽  
Filter Paper ◽  
Light Absorption ◽  
Delayed Fluorescence ◽  
Triplet Energy ◽  
Experimental Findings ◽  
Triplet Energy Transfer ◽  
Step Mechanism ◽  
Triplet Triplet Annihilation

P-tvpe Delayed Fluorescence o f 1-Naphthyl-9-carbazyl-methane At 77 K 1-naphthyl-9-carbazyl-methane adsorbed on filter paper shows predominantly delayed fluorescence o f the carbazole chromophore. The experimental findings are in agreement with the assumption that the carbazole chromophore after excitation by light absorption becomes first deactivated by intramolecular triplet-triplet energy transfer and then re-excited in a two-step mechanism including intermolecular naphthalene triplet-triplet annihilation and intramolecular singlet-singlet energy transfer from the naphthalene to the carbazole chromophore.

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