Aggregation and excitation trapping of 3,3′-diethyl-9-methylthiacarbocyanine iodide in disordered and uniaxially oriented polymer films

Anna Synak; Piotr Bojarski; Ignacy Gryczyński; Zygmunt Gryczyński; Simeonika Rangełowa-Jankowska; Leszek Kułak; Michał Sadownik; Aleksander Kubicki; Ewa Koprowska

doi:10.1016/j.cplett.2008.07.036

Aggregation and excitation trapping of 3,3′-diethyl-9-methylthiacarbocyanine iodide in disordered and uniaxially oriented polymer films

Anna Synak, Piotr Bojarski, Ignacy Gryczyński, Zygmunt Gryczyński, Simeonika Rangełowa-Jankowska, Leszek Kułak, Michał Sadownik, Aleksander Kubicki, Ewa Koprowska

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3 Scopus citations

Abstract

Photophysical properties of 3,3′-diethyl-9-methylthiacarbocyanine iodide (MDTCI) in disordered and uniaxially stretched poly(vinyl alcohol) films (PVA) are reported at high dye concentration. Ground-state formation of fluorescent MDTCI aggregates at high concentration was observed in unstretched and stretched PVA films using steady-state and time-resolved spectroscopic methods. It was found that fluorescence of MDTCI aggregates is almost totally depolarized in disordered matrix, but it remains partly polarized in the stretched PVA film despite energy transfer from monomers. The differences between spectral properties of aggregates in both matrices may result from partial orientation of aggregate transition moment and its immobilization in polymer cage.

Original language	English
Pages (from-to)	222-225
Number of pages	4
Journal	Chemical Physics Letters
Volume	461
Issue number	4-6
DOIs	https://doi.org/10.1016/j.cplett.2008.07.036
State	Published - 20 Aug 2008

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Synak, A., Bojarski, P., Gryczyński, I., Gryczyński, Z., Rangełowa-Jankowska, S., Kułak, L., Sadownik, M., Kubicki, A., & Koprowska, E. (2008). Aggregation and excitation trapping of 3,3′-diethyl-9-methylthiacarbocyanine iodide in disordered and uniaxially oriented polymer films. Chemical Physics Letters, 461(4-6), 222-225. https://doi.org/10.1016/j.cplett.2008.07.036

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title = "Aggregation and excitation trapping of 3,3′-diethyl-9-methylthiacarbocyanine iodide in disordered and uniaxially oriented polymer films",

abstract = "Photophysical properties of 3,3′-diethyl-9-methylthiacarbocyanine iodide (MDTCI) in disordered and uniaxially stretched poly(vinyl alcohol) films (PVA) are reported at high dye concentration. Ground-state formation of fluorescent MDTCI aggregates at high concentration was observed in unstretched and stretched PVA films using steady-state and time-resolved spectroscopic methods. It was found that fluorescence of MDTCI aggregates is almost totally depolarized in disordered matrix, but it remains partly polarized in the stretched PVA film despite energy transfer from monomers. The differences between spectral properties of aggregates in both matrices may result from partial orientation of aggregate transition moment and its immobilization in polymer cage.",

author = "Anna Synak and Piotr Bojarski and Ignacy Gryczy{\'n}ski and Zygmunt Gryczy{\'n}ski and Simeonika Range{\l}owa-Jankowska and Leszek Ku{\l}ak and Micha{\l} Sadownik and Aleksander Kubicki and Ewa Koprowska",

note = "Funding Information: This work has been supported by KBN 1-P03B-012-30 and Texas Research Fund for Emerging Technologies.",

year = "2008",

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doi = "10.1016/j.cplett.2008.07.036",

language = "English",

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Synak, A, Bojarski, P, Gryczyński, I, Gryczyński, Z, Rangełowa-Jankowska, S, Kułak, L, Sadownik, M, Kubicki, A & Koprowska, E 2008, 'Aggregation and excitation trapping of 3,3′-diethyl-9-methylthiacarbocyanine iodide in disordered and uniaxially oriented polymer films', Chemical Physics Letters, vol. 461, no. 4-6, pp. 222-225. https://doi.org/10.1016/j.cplett.2008.07.036

TY - JOUR

T1 - Aggregation and excitation trapping of 3,3′-diethyl-9-methylthiacarbocyanine iodide in disordered and uniaxially oriented polymer films

AU - Synak, Anna

AU - Bojarski, Piotr

AU - Gryczyński, Ignacy

AU - Gryczyński, Zygmunt

AU - Rangełowa-Jankowska, Simeonika

AU - Kułak, Leszek

AU - Sadownik, Michał

AU - Kubicki, Aleksander

AU - Koprowska, Ewa

N1 - Funding Information: This work has been supported by KBN 1-P03B-012-30 and Texas Research Fund for Emerging Technologies.

PY - 2008/8/20

Y1 - 2008/8/20

N2 - Photophysical properties of 3,3′-diethyl-9-methylthiacarbocyanine iodide (MDTCI) in disordered and uniaxially stretched poly(vinyl alcohol) films (PVA) are reported at high dye concentration. Ground-state formation of fluorescent MDTCI aggregates at high concentration was observed in unstretched and stretched PVA films using steady-state and time-resolved spectroscopic methods. It was found that fluorescence of MDTCI aggregates is almost totally depolarized in disordered matrix, but it remains partly polarized in the stretched PVA film despite energy transfer from monomers. The differences between spectral properties of aggregates in both matrices may result from partial orientation of aggregate transition moment and its immobilization in polymer cage.

AB - Photophysical properties of 3,3′-diethyl-9-methylthiacarbocyanine iodide (MDTCI) in disordered and uniaxially stretched poly(vinyl alcohol) films (PVA) are reported at high dye concentration. Ground-state formation of fluorescent MDTCI aggregates at high concentration was observed in unstretched and stretched PVA films using steady-state and time-resolved spectroscopic methods. It was found that fluorescence of MDTCI aggregates is almost totally depolarized in disordered matrix, but it remains partly polarized in the stretched PVA film despite energy transfer from monomers. The differences between spectral properties of aggregates in both matrices may result from partial orientation of aggregate transition moment and its immobilization in polymer cage.

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U2 - 10.1016/j.cplett.2008.07.036

DO - 10.1016/j.cplett.2008.07.036

M3 - Article

AN - SCOPUS:48749114969

SN - 0009-2614

VL - 461

SP - 222

EP - 225

JO - Chemical Physics Letters

JF - Chemical Physics Letters

IS - 4-6

ER -

Aggregation and excitation trapping of 3,3′-diethyl-9-methylthiacarbocyanine iodide in disordered and uniaxially oriented polymer films

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