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Simonek T, Jackulikova M, Topolska A, Jancovic M, Jancovicova L, Slusna L, Hardy M, Valach M, Sramkova M, Popovicova M, Barkasi D, Prochazkova K, Libova L, Mrazova M, Vlcek R, Gulasova M, Radkova L, Murgova A, Vansac P, Hochman R, Konosova H, Katunska M, Bakos M, Bielova M, Sasvary F, Grey E. Spectrum of Communicable Diseases in Lesbos Island UNHCR Refugee Camp. cswhi 2019. [DOI: 10.22359/cswhi_10_4_10] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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Slusna L, Haizer L, Jane E, Bondarev D, Szocs V, Drzik M, Noskovicova E, Lorenc D, Velic D. Linear and Multi-Photon Fluorescence of Thiophene Based Copolymer with Electron-Accepting Side Chains. J Fluoresc 2018; 28:1333-1340. [PMID: 30218295 DOI: 10.1007/s10895-018-2295-3] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2018] [Accepted: 09/03/2018] [Indexed: 11/29/2022]
Abstract
A novel copolymer poly(thiophene-2,5-diyl-2,5-di-n-octyloxycarbonyl-1,4-phenylene), denoted as P33, is introduced as potential material for photovoltaics, polymer light-emitting diodes, and/or organic transistors. P33 dissolved in chloroform is investigated by steady-state absorption, linear/non-linear fluorescence spectroscopies and time-resolved fluorescence spectroscopy. Molar extinction coefficient, fluorescence quantum yield, and singlet fluorescence lifetime of P33 are determined to be 18,315 M-1 cm-1, 0.4, and 810 ps, respectively. The P33 fluorescence fast components of decay times are 1.2 ps, 2.0 ps, and 0.5 ps for increasing wavelengths of 480 nm, 500 nm, and 520 nm, respectively. The fast component is attributed to a transport of nearly instantaneously formed excitons to localized states known as downhill energy transfer. Additionally multi-photon excited fluorescence is observed for pumping with wavelengths of 800 nm and 1200 nm. Two-photon absorption cross-section is determined to be 6.9 GM. These spectroscopic studies provide basic fluorescence characteristics of the novel thiophene copolymer P33.
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Affiliation(s)
- Lenka Slusna
- Faculty of Natural Sciences, Department of Physical and Theoretical Chemistry, Comenius University, Ilkovicova 6, 842 15, Bratislava 4, Slovakia.
| | - Ludovit Haizer
- International Laser Centre, Ilkovicova 3, 841 04, Bratislava 4, Slovakia
| | - Eduard Jane
- Institute of Chemistry, Slovak Academy of Sciences, Dubravska cesta 9, 845 38, Bratislava, Slovakia
| | - Dmitrij Bondarev
- Polymer Institute, Slovak Academy of Sciences, Dubravska cesta 9, 845 41, Bratislava 45, Slovakia
| | - Vojtech Szocs
- International Laser Centre, Ilkovicova 3, 841 04, Bratislava 4, Slovakia
| | - Milan Drzik
- International Laser Centre, Ilkovicova 3, 841 04, Bratislava 4, Slovakia
| | - Eva Noskovicova
- Faculty of Natural Sciences, Department of Physical and Theoretical Chemistry, Comenius University, Ilkovicova 6, 842 15, Bratislava 4, Slovakia
| | - Dusan Lorenc
- Faculty of Natural Sciences, Department of Physical and Theoretical Chemistry, Comenius University, Ilkovicova 6, 842 15, Bratislava 4, Slovakia.,International Laser Centre, Ilkovicova 3, 841 04, Bratislava 4, Slovakia
| | - Dusan Velic
- Faculty of Natural Sciences, Department of Physical and Theoretical Chemistry, Comenius University, Ilkovicova 6, 842 15, Bratislava 4, Slovakia.,International Laser Centre, Ilkovicova 3, 841 04, Bratislava 4, Slovakia
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