Temperature-Tuning of Optical Properties and Molecular Aggregation in AnE-PVstat Copolymer Solution

A. Saaidia; M.A. Saidani; E. Hleli; S. Alam; Christoph Ulbricht; Samir Romdhane; A. Ben Fredj; Christian Kästner; Daniel Ayuk Mbi Egbe; U. S. Schubert; H. Bouchriha; H. Hoppe

doi:10.1021/acs.jpcc.7b10709

Temperature-Tuning of Optical Properties and Molecular Aggregation in AnE-PVstat Copolymer Solution

A. Saaidia, M.A. Saidani, E. Hleli, S. Alam, Christoph Ulbricht, Samir Romdhane, A. Ben Fredj, Christian Kästner, Daniel Ayuk Mbi Egbe, U. S. Schubert, H. Bouchriha, H. Hoppe

Institute of Polymeric Materials and Testing

Research output: Contribution to journal › Article › peer-review

Abstract

The correlation between the optical and morphological properties of an anthracene-containing poly(phenylene ethynylene)-alt- (phenylenevinylene) statistical copolymer (AnE-PVstat) in solution has been investigated. As a function of temperature, the molecular aggregation in chloroform/chlorobenzene (CF:CB) solution was examined by means of absorbance and photoluminescence measurements. The study of the evolution of the 0−0 to the 0−1 photoluminescence (PL) ratio with temperature in the framework of the HJ-aggregate model unveiled the presence of both H- and Jlike behaviors at room temperature. Upon increasing temperature, the interchain intermolecular coupling decreases, leading to a dissociation of Haggregates. Hence, molecular torsions are facilitated, polymer planarity is reduced, and the intrachain electronic coupling decreases.

Original language	English
Pages (from-to)	3965-3969
Number of pages	5
Journal	The Journal of Physical Chemistry C
Volume	122
Issue number	7
DOIs	https://doi.org/10.1021/acs.jpcc.7b10709
Publication status	Published - Jan 2018

Fields of science

205 Materials Engineering
205011 Polymer engineering
205016 Materials testing
207106 Renewable energy
211908 Energy research
103023 Polymer physics
104018 Polymer chemistry
211909 Energy technology
104019 Polymer sciences

JKU Focus areas

Nano-, Bio- and Polymer-Systems: From Structure to Function

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10.1021/acs.jpcc.7b10709

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Saaidia, A., Saidani, M. A., Hleli, E., Alam, S., Ulbricht, C., Romdhane, S., Ben Fredj, A., Kästner, C., Egbe, D. A. M., Schubert, U. S., Bouchriha, H., & Hoppe, H. (2018). Temperature-Tuning of Optical Properties and Molecular Aggregation in AnE-PVstat Copolymer Solution. The Journal of Physical Chemistry C, 122(7), 3965-3969. https://doi.org/10.1021/acs.jpcc.7b10709

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title = "Temperature-Tuning of Optical Properties and Molecular Aggregation in AnE-PVstat Copolymer Solution",

abstract = "The correlation between the optical and morphological properties of an anthracene-containing poly(phenylene ethynylene)-alt- (phenylenevinylene) statistical copolymer (AnE-PVstat) in solution has been investigated. As a function of temperature, the molecular aggregation in chloroform/chlorobenzene (CF:CB) solution was examined by means of absorbance and photoluminescence measurements. The study of the evolution of the 0−0 to the 0−1 photoluminescence (PL) ratio with temperature in the framework of the HJ-aggregate model unveiled the presence of both H- and Jlike behaviors at room temperature. Upon increasing temperature, the interchain intermolecular coupling decreases, leading to a dissociation of Haggregates. Hence, molecular torsions are facilitated, polymer planarity is reduced, and the intrachain electronic coupling decreases.",

author = "A. Saaidia and M.A. Saidani and E. Hleli and S. Alam and Christoph Ulbricht and Samir Romdhane and \{Ben Fredj\}, A. and Christian K{\"a}stner and Egbe, \{Daniel Ayuk Mbi\} and Schubert, \{U. S.\} and H. Bouchriha and H. Hoppe",

year = "2018",

month = jan,

doi = "10.1021/acs.jpcc.7b10709",

language = "English",

volume = "122",

pages = "3965--3969",

journal = "The Journal of Physical Chemistry C",

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T1 - Temperature-Tuning of Optical Properties and Molecular Aggregation in AnE-PVstat Copolymer Solution

AU - Saaidia, A.

AU - Saidani, M.A.

AU - Hleli, E.

AU - Alam, S.

AU - Ulbricht, Christoph

AU - Romdhane, Samir

AU - Ben Fredj, A.

AU - Kästner, Christian

AU - Egbe, Daniel Ayuk Mbi

AU - Schubert, U. S.

AU - Bouchriha, H.

AU - Hoppe, H.

PY - 2018/1

Y1 - 2018/1

N2 - The correlation between the optical and morphological properties of an anthracene-containing poly(phenylene ethynylene)-alt- (phenylenevinylene) statistical copolymer (AnE-PVstat) in solution has been investigated. As a function of temperature, the molecular aggregation in chloroform/chlorobenzene (CF:CB) solution was examined by means of absorbance and photoluminescence measurements. The study of the evolution of the 0−0 to the 0−1 photoluminescence (PL) ratio with temperature in the framework of the HJ-aggregate model unveiled the presence of both H- and Jlike behaviors at room temperature. Upon increasing temperature, the interchain intermolecular coupling decreases, leading to a dissociation of Haggregates. Hence, molecular torsions are facilitated, polymer planarity is reduced, and the intrachain electronic coupling decreases.

AB - The correlation between the optical and morphological properties of an anthracene-containing poly(phenylene ethynylene)-alt- (phenylenevinylene) statistical copolymer (AnE-PVstat) in solution has been investigated. As a function of temperature, the molecular aggregation in chloroform/chlorobenzene (CF:CB) solution was examined by means of absorbance and photoluminescence measurements. The study of the evolution of the 0−0 to the 0−1 photoluminescence (PL) ratio with temperature in the framework of the HJ-aggregate model unveiled the presence of both H- and Jlike behaviors at room temperature. Upon increasing temperature, the interchain intermolecular coupling decreases, leading to a dissociation of Haggregates. Hence, molecular torsions are facilitated, polymer planarity is reduced, and the intrachain electronic coupling decreases.

UR - https://www.scopus.com/pages/publications/85042525892

U2 - 10.1021/acs.jpcc.7b10709

DO - 10.1021/acs.jpcc.7b10709

M3 - Article

SN - 1932-7455

VL - 122

SP - 3965

EP - 3969

JO - The Journal of Physical Chemistry C

JF - The Journal of Physical Chemistry C

IS - 7

ER -

Temperature-Tuning of Optical Properties and Molecular Aggregation in AnE-PVstat Copolymer Solution

Abstract

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