Tuning the photoluminescence and anisotropic structure of PEDOT
Result description
In the current work, we study the photoluminescence and anisotropic structure of PEDOT which is obtained in the presence of ions that perturb the water structure (ions in Hofmeister series). The water content in PEDOT has been confirmed by TGA and DSC measurements. The weight loss and heat flux together provided refined information about water content in the synthesized PEDOT, and based on the characteristic energy value, we conclude that the water molecules are bonded to the PEDOT chains by hydrogen bonds. The physicochemical properties of the such prepared PEDOT have been studied, e.g. the presence of photoluminescence is observed for PEDOT in the solid-state (thin film) with the longest Stokes shift (273 nm). Similarly, photoluminescence has been detected for the aqueous PEDOT suspension with the lifetime of the excited state in the range of nanoseconds. Moreover, the PEDOT chains can undergo rearrangements under electrochemical performance with the formation of an anisotropic structure, which is confirmed by polarized microscopy and XRD measurements. The photoluminescence spectrum of the anisotropic PEDOT film contains sharp, well-resolved peaks.
Keywords
The result's identifiers
Result code in IS VaVaI
Alternative codes found
RIV/00216208:11310/19:10424682
Result on the web
https://pubs.rsc.org/en/content/articlelanding/2019/TC/C9TC00955H#!divAbstract
DOI - Digital Object Identifier
Alternative languages
Result language
angličtina
Original language name
Tuning the photoluminescence and anisotropic structure of PEDOT
Original language description
In the current work, we study the photoluminescence and anisotropic structure of PEDOT which is obtained in the presence of ions that perturb the water structure (ions in Hofmeister series). The water content in PEDOT has been confirmed by TGA and DSC measurements. The weight loss and heat flux together provided refined information about water content in the synthesized PEDOT, and based on the characteristic energy value, we conclude that the water molecules are bonded to the PEDOT chains by hydrogen bonds. The physicochemical properties of the such prepared PEDOT have been studied, e.g. the presence of photoluminescence is observed for PEDOT in the solid-state (thin film) with the longest Stokes shift (273 nm). Similarly, photoluminescence has been detected for the aqueous PEDOT suspension with the lifetime of the excited state in the range of nanoseconds. Moreover, the PEDOT chains can undergo rearrangements under electrochemical performance with the formation of an anisotropic structure, which is confirmed by polarized microscopy and XRD measurements. The photoluminescence spectrum of the anisotropic PEDOT film contains sharp, well-resolved peaks.
Czech name
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Czech description
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Classification
Type
Jimp - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
—
OECD FORD branch
10404 - Polymer science
Result continuities
Project
GA17-05095S: Biomimetic materials based on conducting polymers
Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace
Others
Publication year
2019
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Journal of Materials Chemistry C
ISSN
2050-7526
e-ISSN
—
Volume of the periodical
7
Issue of the periodical within the volume
23
Country of publishing house
GB - UNITED KINGDOM
Number of pages
7
Pages from-to
7013-7019
UT code for WoS article
000471714400018
EID of the result in the Scopus database
2-s2.0-85067308207
Basic information
Result type
Jimp - Article in a specialist periodical, which is included in the Web of Science database
OECD FORD
Polymer science
Year of implementation
2019