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.

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.

H2O2-activated triplet–triplet annihilation upconversion via modulation of the fluorescence quantum yields of the triplet acceptor and the triplet–triplet-energy-transfer efficiency

2015 ◽  
Vol 51 (62) ◽  
pp. 12403-12406 ◽  
Author(s):  
Renjie Tao ◽  
Jianzhang Zhao ◽  
Fangfang Zhong ◽  
Caishun Zhang ◽  
Wenbo Yang ◽  
...  
Keyword(s):  
Energy Transfer ◽  
Energy Transfer Efficiency ◽  
Transfer Efficiency ◽  
Quantum Yields ◽  
Fluorescent Product ◽  
Triplet Energy ◽  
Fluorescence Quantum Yields ◽  
Triplet Energy Transfer ◽  
Triplet Triplet Annihilation

H2O2-activatable TTA upconversion was achieved with non-fluorescent 9,10-bis(diphenylphosphino)anthracene as a triplet acceptor/emitter, which can be oxidized to a fluorescent product by H2O2.

Intramolecular triplet–triplet energy transfer enhanced triplet–triplet annihilation upconversion with a short-lived triplet state platinum(ii) terpyridyl acetylide photosensitizer

RSC Advances ◽  
2015 ◽  
Vol 5 (86) ◽  
pp. 70640-70648 ◽  
Author(s):  
Shuai Yu ◽  
Yi Zeng ◽  
Jinping Chen ◽  
Tianjun Yu ◽  
Xiaohui Zhang ◽  
...  
Keyword(s):  
Energy Transfer ◽  
Triplet State ◽  
Triplet Energy ◽  
Triplet Energy Transfer ◽  
Triplet Triplet Annihilation

A triplet–triplet annihilation upconversion system with a short-lived triplet state photosensitizer was constructed and enhanced by the design of intramolecular triplet–triplet energy transfer.

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