Zobrazeno 1 - 10
of 230
pro vyhledávání: '"Ronald P. Steer"'
Autor:
Ronald P. Steer
Publikováno v:
Journal of Photochemistry and Photobiology C: Photochemistry Reviews. 40:68-80
The literature capturing the unusual electronic structure and photophysics of monomeric azulene and its simple derivatives is briefly reviewed. The principles established on the basis of this model are then used to understand the experimental and pre
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::0266fefeed96869dbcf2e569dde13b82
https://doi.org/10.1016/j.jphotochemrev.2019.06.002
https://doi.org/10.1016/j.jphotochemrev.2019.06.002
Autor:
Kenneth P. Ghiggino, Stephen Awuku, Jonathan M. White, Ying Hao, Amy L. Stevens, Sacha Novakovic, Ronald P. Steer
Publikováno v:
The journal of physical chemistry. A. 124(51)
A zinc porphyrin-pendant norbornene polymer with a rigid backbone characterized by a 2:1 E/Z isomeric structure ratio has been synthesized, and its spectroscopic and photophysical properties are examined. Zinc tetraphenylporphyrin, the porphyrin-subs
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::36548d8a1ab7f6fdbba2c288f8b7ce13
https://pubmed.ncbi.nlm.nih.gov/33320683
https://pubmed.ncbi.nlm.nih.gov/33320683
Autor:
Matthew F. Paige, Trevor A. Smith, Jonathan M. White, Wallace W. H. Wong, Ronald P. Steer, Kenneth P. Ghiggino, Amy L. Stevens, Sacha Novakovic
Publikováno v:
The Journal of Physical Chemistry A. 122:9605-9614
Several new polymers with rotatable zinc porphyrin pendants have been synthesized and their optical spectroscopic and photophysical properties, including upconversion efficiencies, determined in both fluid solution and thin films. Comparisons made wi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::5b195662c64d671c3126f1fe81a5b3b6
https://doi.org/10.1021/acs.jpca.8b09321
https://doi.org/10.1021/acs.jpca.8b09321
Autor:
Ronald P. Steer
Publikováno v:
Dalton Transactions. 47:8517-8525
The novel potential use of selected metalloporphyrins as dual absorber-upconverters in solar photovoltaics is discussed. Additional efficiencies are available if use can be made of the porphyrin's short-lived S2 state, which is formed directly by exc
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::e1eddf442244c50ea36b48cfa296e7f6
https://doi.org/10.1039/c7dt04343k
https://doi.org/10.1039/c7dt04343k
Autor:
Siobhan J. Bradley, Ronald P. Steer, Colleen Yeow, Stephen Awuku, Amy L. Stevens, Jonathan M. White, Kenneth P. Ghiggino
Publikováno v:
Chemical Physics Letters. 784:139114
The electronic spectroscopy and photophysics of 1,2-benzazulene (BzAz) have been examined in solution and in thin solid films, with the objective of comparing its intramolecular and intermolecular excited state decay processes with those of azulene.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::33d9ff9b507255d15c405293eaea2ae7
https://doi.org/10.1016/j.cplett.2021.139114
https://doi.org/10.1016/j.cplett.2021.139114
Publikováno v:
The Journal of Physical Chemistry B. 121:11180-11188
Dimeric and multimeric aggregates of a model metalloporphyrin, zinc tetraphenylporphyrin (ZnTPP), have been produced in a controlled manner by incrementally increasing the water content of dilute aqueous ethanol solutions. Steady state absorption, fl
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::2a9e94889c3020dee601d6fea776090d
https://doi.org/10.1021/acs.jpcb.7b09868
https://doi.org/10.1021/acs.jpcb.7b09868
Autor:
Ronald P. Steer, Jonathan M. White, Neeraj Kumar Joshi, Sacha Novakovic, Kenneth P. Ghiggino, Matthew F. Paige, Wallace W. H. Wong, Ranjana Rautela
Publikováno v:
Physical Chemistry Chemical Physics. 19:23471-23482
Spectroscopic, photophysical and computational studies designed to expose and explain the differences in the efficiencies of non-coherent photon upconversion (NCPU) by triplet-triplet annihilation (TTA) have been carried out for a new series of alkyl
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::0a395f66736c59dfac2c630247867cd8
https://doi.org/10.1039/c7cp04746k
https://doi.org/10.1039/c7cp04746k
Autor:
Colleen Yeow, Amy L. Stevens, Siobhan J. Bradley, Kenneth P. Ghiggino, Ronald P. Steer, Jonathan M. White
Publikováno v:
Journal of Photochemistry and Photobiology A: Chemistry. 405:112922
Calix[4]azulene is a non-alternant aromatic calixarene composed of four azulene chromophores linked by methylene groups. Its photochemical stability, photophysical properties and an analysis of its electronic spectra are reported using monomeric azul
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::122476559e6d712d1c4c0ee53851094c
https://doi.org/10.1016/j.jphotochem.2020.112922
https://doi.org/10.1016/j.jphotochem.2020.112922
Publikováno v:
Photochemical & Photobiological Sciences. 15:609-617
Simple composite films consisting of a polymer blended with organic emitters have the potential for broad-band "white" light emission that can be used for general lighting applications. In the present work, a simple mixture of 3-hydroxyisoquinoline (
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::5117a0e5ed1c7108472a75c9c9eb94a4
https://doi.org/10.1039/c6pp00005c
https://doi.org/10.1039/c6pp00005c
Autor:
Hessamaddin Younesi Araghi, Ronald P. Steer, Concepcion P. Ponce, Matthew F. Paige, Neeraj Kumar Joshi
Publikováno v:
Langmuir. 31:13590-13599
Controlling aggregation of the dual sensitizer-emitter (S-E) zinc tetraphenylporphyrin (ZnTPP) is an important consideration in solid state noncoherent photon upconversion (NCPU) applications. The Langmuir-Blodgett (LB) technique is a facile means of
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::934645990ce100942f75c748e3aeb3a4
https://doi.org/10.1021/acs.langmuir.5b03171
https://doi.org/10.1021/acs.langmuir.5b03171