Effect of the charge state on the photoluminescence spectra of melanin

Anton Kostetskyi, Yuri P. Piryatinski, Anatoli B. Verbitsky, Petro Lutsyk, Oleksiy Rozhin

Research output: Contribution to journalConference article

Abstract

Steady-state and time-resolved photoluminescence (PL) spectra of
natural and synthetic melanin, as well as melanin composites with
surfactant, sodium dodecylbenzenesulfonate, and polymethine dye,
astraphloxin, have been studied. The melanin molecules having differently
charged peripheral groups with terminal O atoms and OH
groups mixed with the negatively charged surfactant or positively
charged astraphloxin dye feature new PL spectral bands. The kinetics
of PL and time-resolved emission spectra for the melanin and the
composites were also investigated and discussed in terms of intermolecular
complexation, nano-aggregation and formation of chargetransfer
states. The studies are aiming to understand the electronic
properties of various melanins, particularly natural ones.
Original languageEnglish
Pages (from-to)41-54
Number of pages14
JournalMolecular Crystals and Liquid Crystals
Volume671
Issue number1
DOIs
Publication statusPublished - 3 Jun 2019
Event1th International Conference on Electronic Processes in Organic and Inorganic Materials (ICEPOM-11) - Ivano-Frankivsk, Ukraine
Duration: 21 May 201825 May 2018

Fingerprint

Melanin
melanin
Melanins
Photoluminescence
photoluminescence
Coloring Agents
Dyes
dyes
spectral bands
Surface-Active Agents
emission spectra
Surface active agents
Agglomeration
surfactants
Sodium
sodium
Atoms
Molecules
composite materials
Composite materials

Bibliographical note

This is an Accepted Manuscript of an article published by Taylor & Francis Group in Molecular Crystals and Liquid Crystals on 3/6/2019, available online at: http://www.tandfonline.com/10.1080/15421406.2018.1542084

Keywords

  • Photoluminescence
  • polymethine dye
  • melanin
  • CT-states
  • time resolved emission spectra

Cite this

Kostetskyi, Anton ; Piryatinski, Yuri P. ; Verbitsky, Anatoli B. ; Lutsyk, Petro ; Rozhin, Oleksiy. / Effect of the charge state on the photoluminescence spectra of melanin. In: Molecular Crystals and Liquid Crystals. 2019 ; Vol. 671, No. 1. pp. 41-54.
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title = "Effect of the charge state on the photoluminescence spectra of melanin",
abstract = "Steady-state and time-resolved photoluminescence (PL) spectra of natural and synthetic melanin, as well as melanin composites withsurfactant, sodium dodecylbenzenesulfonate, and polymethine dye,astraphloxin, have been studied. The melanin molecules having differentlycharged peripheral groups with terminal O atoms and OHgroups mixed with the negatively charged surfactant or positivelycharged astraphloxin dye feature new PL spectral bands. The kineticsof PL and time-resolved emission spectra for the melanin and thecomposites were also investigated and discussed in terms of intermolecularcomplexation, nano-aggregation and formation of chargetransferstates. The studies are aiming to understand the electronicproperties of various melanins, particularly natural ones.",
keywords = "Photoluminescence, polymethine dye, melanin, CT-states, time resolved emission spectra",
author = "Anton Kostetskyi and Piryatinski, {Yuri P.} and Verbitsky, {Anatoli B.} and Petro Lutsyk and Oleksiy Rozhin",
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Effect of the charge state on the photoluminescence spectra of melanin. / Kostetskyi, Anton; Piryatinski, Yuri P.; Verbitsky, Anatoli B.; Lutsyk, Petro; Rozhin, Oleksiy.

In: Molecular Crystals and Liquid Crystals, Vol. 671, No. 1, 03.06.2019, p. 41-54.

Research output: Contribution to journalConference article

TY - JOUR

T1 - Effect of the charge state on the photoluminescence spectra of melanin

AU - Kostetskyi, Anton

AU - Piryatinski, Yuri P.

AU - Verbitsky, Anatoli B.

AU - Lutsyk, Petro

AU - Rozhin, Oleksiy

N1 - This is an Accepted Manuscript of an article published by Taylor & Francis Group in Molecular Crystals and Liquid Crystals on 3/6/2019, available online at: http://www.tandfonline.com/10.1080/15421406.2018.1542084

PY - 2019/6/3

Y1 - 2019/6/3

N2 - Steady-state and time-resolved photoluminescence (PL) spectra of natural and synthetic melanin, as well as melanin composites withsurfactant, sodium dodecylbenzenesulfonate, and polymethine dye,astraphloxin, have been studied. The melanin molecules having differentlycharged peripheral groups with terminal O atoms and OHgroups mixed with the negatively charged surfactant or positivelycharged astraphloxin dye feature new PL spectral bands. The kineticsof PL and time-resolved emission spectra for the melanin and thecomposites were also investigated and discussed in terms of intermolecularcomplexation, nano-aggregation and formation of chargetransferstates. The studies are aiming to understand the electronicproperties of various melanins, particularly natural ones.

AB - Steady-state and time-resolved photoluminescence (PL) spectra of natural and synthetic melanin, as well as melanin composites withsurfactant, sodium dodecylbenzenesulfonate, and polymethine dye,astraphloxin, have been studied. The melanin molecules having differentlycharged peripheral groups with terminal O atoms and OHgroups mixed with the negatively charged surfactant or positivelycharged astraphloxin dye feature new PL spectral bands. The kineticsof PL and time-resolved emission spectra for the melanin and thecomposites were also investigated and discussed in terms of intermolecularcomplexation, nano-aggregation and formation of chargetransferstates. The studies are aiming to understand the electronicproperties of various melanins, particularly natural ones.

KW - Photoluminescence

KW - polymethine dye

KW - melanin

KW - CT-states

KW - time resolved emission spectra

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UR - http://icepom.in.ua/en

U2 - 10.1080/15421406.2018.1542084

DO - 10.1080/15421406.2018.1542084

M3 - Conference article

VL - 671

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EP - 54

JO - Molecular Crystals and Liquid Crystals

JF - Molecular Crystals and Liquid Crystals

SN - 1542-1406

IS - 1

ER -