Free-triplet generation with improved efficiency in tetracene oligomers through spatially separated triplet pair states

2021 ◽  
Author(s):  
Zhiwei Wang ◽  
Heyuan Liu ◽  
Xiaoyu Xie ◽  
Chunfeng Zhang ◽  
Rui Wang ◽  
...  
Keyword(s):  
Triplet Pair

Radical–Triplet Pair Interactions as Probes of Long-Range Polymer Motion in Solution

2014 ◽  
Vol 118 (33) ◽  
pp. 9997-10006 ◽  
Author(s):  
Sooyeon Sim ◽  
Malcolm D. E. Forbes
Keyword(s):  
Long Range ◽  
Triplet Pair ◽  
Pair Interactions

scholarly journals Multiexcitonic Triplet Pair Generation in Oligoacene Dendrimers as Amorphous Solid‐State Miniatures

2020 ◽  
Vol 59 (47) ◽  
pp. 20956-20964 ◽  
Author(s):  
Juno Kim ◽  
Hao Ting Teo ◽  
Yongseok Hong ◽  
Juwon Oh ◽  
Hyungjun Kim ◽  
...  
Keyword(s):  
Solid State ◽  
Amorphous Solid ◽  
Pair Generation ◽  
Triplet Pair

scholarly journals Ultrafast Triplet Pair Separation and Triplet Trapping following Singlet Fission in Amorphous Pentacene Films

2020 ◽  
Vol 124 (43) ◽  
pp. 23567-23578
Author(s):  
Kyle T. Munson ◽  
Jianing Gan ◽  
Christopher Grieco ◽  
Grayson S. Doucette ◽  
John E. Anthony ◽  
...  
Keyword(s):  
Singlet Fission ◽  
Pair Separation ◽  
Triplet Pair

scholarly journals Uncovering dark multichromophoric states in Peridinin–Chlorophyll–Protein

2020 ◽  
Vol 17 (164) ◽  
pp. 20190736
Author(s):  
Elliot J. Taffet ◽  
Francesca Fassioli ◽  
Zi S. D. Toa ◽  
David Beljonne ◽  
Gregory D. Scholes
Keyword(s):  
Crystal Structure ◽  
Excited States ◽  
Quantum Chemical ◽  
Light Harvesting ◽  
Singlet Fission ◽  
Chlorophyll Protein ◽  
Triplet Pair ◽  
A Charge ◽  
Hole Generation ◽  
Chemical Evidence

It has long been recognized that visible light harvesting in Peridinin–Chlorophyll–Protein is driven by the interplay between the bright (S 2 ) and dark (S 1 ) states of peridinin (carotenoid), along with the lowest-lying bright (Q y ) and dark (Q x ) states of chlorophyll- a . Here, we analyse a chromophore cluster in the crystal structure of Peridinin–Chlorophyll–Protein, in particular, a peridinin–peridinin and a peridinin–chlorophyll- a dimer, and present quantum chemical evidence for excited states that exist beyond the confines of single peridinin and chlorophyll chromophores. These dark multichromophoric states, emanating from the intermolecular packing native to Peridinin–Chlorophyll–Protein, include a correlated triplet pair comprising neighbouring peridinin excitations and a charge-transfer interaction between peridinin and the adjacent chlorophyll- a . We surmise that such dark multichromophoric states may explain two spectral mysteries in light-harvesting pigments: the sub-200-fs singlet fission observed in carotenoid aggregates, and the sub-200-fs chlorophyll- a hole generation in Peridinin–Chlorophyll–Protein.

Solvent Viscosity Effect on Triplet–Triplet Pair in Triplet Fusion

2015 ◽  
Vol 119 (52) ◽  
pp. 15901-15908 ◽  
Author(s):  
Kana Yokoyama ◽  
Yusuke Wakikawa ◽  
Tomoaki Miura ◽  
Jun-ichi Fujimori ◽  
Fuyuki Ito ◽  
...  
Keyword(s):  
Solvent Viscosity ◽  
Viscosity Effect ◽  
Triplet Pair
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