|
1
|
Taniguchi M, Lindsey JS, Bocian DF, Holten D. Comprehensive review of photophysical parameters (ε, Φf, τs) of tetraphenylporphyrin (H2TPP) and zinc tetraphenylporphyrin (ZnTPP) – Critical benchmark molecules in photochemistry and photosynthesis. JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY C-PHOTOCHEMISTRY REVIEWS 2021. [DOI: 10.1016/j.jphotochemrev.2020.100401] [Citation(s) in RCA: 36] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
|
|
2
|
Stevens AL, Yeow C, White JM, Bradley SJ, Ghiggino KP, Steer RP. Electronic spectroscopy and photophysics of calix[4]azulene. J Photochem Photobiol A Chem 2021. [DOI: 10.1016/j.jphotochem.2020.112922] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
|
|
3
|
Stevens AL, Awuku S, Ghiggino KP, Hao Y, Novakovic S, Steer RP, White JM. Spectroscopic and Dynamic Properties of Electronically Excited Pendant Porphyrin Polymers with Backbones of Differing Flexibility. J Phys Chem A 2020; 124:10748-10757. [DOI: 10.1021/acs.jpca.0c09501] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Amy L. Stevens
- Department of Chemistry, University of Saskatchewan, Saskatoon, Saskatchewan S7N5C9, Canada
| | - Stephen Awuku
- Department of Chemistry, University of Saskatchewan, Saskatoon, Saskatchewan S7N5C9, Canada
| | - Kenneth P. Ghiggino
- School of Chemistry and ARC Centre of Excellence in Exciton Science, University of Melbourne, Parkville, Victoria 3010, Australia
| | - Ying Hao
- School of Chemistry and ARC Centre of Excellence in Exciton Science, University of Melbourne, Parkville, Victoria 3010, Australia
| | - Sacha Novakovic
- School of Chemistry and ARC Centre of Excellence in Exciton Science, University of Melbourne, Parkville, Victoria 3010, Australia
| | - Ronald P. Steer
- Department of Chemistry, University of Saskatchewan, Saskatoon, Saskatchewan S7N5C9, Canada
| | - Jonathan M. White
- School of Chemistry and ARC Centre of Excellence in Exciton Science, University of Melbourne, Parkville, Victoria 3010, Australia
| |
Collapse
|
|
4
|
Liu S, Wang X, Liu H, Xiao Z, Zhou C, Chen Y, Li X. An Activatable Triplet Sensitizer Based on Triplet Electron Transfer and Its Application for Triplet-Triplet Annihilation Upconversion. J Phys Chem B 2020; 124:6389-6397. [PMID: 32609515 DOI: 10.1021/acs.jpcb.0c05234] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Activatable triplet photosensitization refers to a photosentization process which can be turned on/off easily by external stimulus. Activatable triplet photosensitizations are normally achieved by interfering with the singlet excited state before the intersystem cross process (ISC), i.e., the formation process of triplet states of sensitizer. To achieve novel activatable triplet photosensitization, a disulfide-bridged porphyrin zinc(II) dyad (ZnPor-S-S-ZnPor) is prepared. Although fast ISC can be conducted in this dyad, an extremely low efficiency is obtained when employing this dyad as a triplet donor in triplet-triplet annihilation upconversion (TTA-UC) for sensitizing perylene. This is because of the presence of electron transfer from the triplet state of the porphyrin zinc(II) unit to the disulfide bond, which quickly quenches the triplet state of the porphyrin zinc(II) unit. This electron transfer process can be stopped by the cleavage of the disulfide bond in the presence of thiol, and TTA-UC efficiency can be enhanced significantly. Our result demonstrates for the first time that the disulfide bond can act as not only an easy cleavage linker but also a triplet electron acceptor. Furthermore, quenching the triplet states of sensitizer by triplet electron transfer provides an alternative protocol for designing activatable triplet sensitizers except controlling the singlet excited state before the ISC process.
Collapse
Affiliation(s)
- Shanshan Liu
- College of Science, School of Materials Science and Engineering, College of New Energy, China University of Petroleum (East China), Qingdao, Shandong 266580, China
| | - Xiangyang Wang
- College of Science, School of Materials Science and Engineering, College of New Energy, China University of Petroleum (East China), Qingdao, Shandong 266580, China
| | - Heyuan Liu
- College of Science, School of Materials Science and Engineering, College of New Energy, China University of Petroleum (East China), Qingdao, Shandong 266580, China
| | - Zuoxu Xiao
- College of Science, School of Materials Science and Engineering, College of New Energy, China University of Petroleum (East China), Qingdao, Shandong 266580, China
| | - Changjing Zhou
- College of Science, School of Materials Science and Engineering, College of New Energy, China University of Petroleum (East China), Qingdao, Shandong 266580, China
| | - Yanli Chen
- College of Science, School of Materials Science and Engineering, College of New Energy, China University of Petroleum (East China), Qingdao, Shandong 266580, China
| | - Xiyou Li
- College of Science, School of Materials Science and Engineering, College of New Energy, China University of Petroleum (East China), Qingdao, Shandong 266580, China
| |
Collapse
|