Tuning the photoluminescence and anisotropic structure of PEDOT

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216208%3A11310%2F19%3A10424682" target="_blank" >RIV/00216208:11310/19:10424682 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/61389013:_____/19:00505491

Výsledek na webu

<a href="https://verso.is.cuni.cz/pub/verso.fpl?fname=obd_publikace_handle&handle=9WboclmoxU" target="_blank" >https://verso.is.cuni.cz/pub/verso.fpl?fname=obd_publikace_handle&handle=9WboclmoxU</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1039/c9tc00955h" target="_blank" >10.1039/c9tc00955h</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Tuning the photoluminescence and anisotropic structure of PEDOT

Popis výsledku v původním jazyce

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.

Název v anglickém jazyce

Tuning the photoluminescence and anisotropic structure of PEDOT

Popis výsledku anglicky

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.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10305 - Fluids and plasma physics (including surface physics)

Projekt

—

Návaznosti

S - Specificky vyzkum na vysokych skolach<br>I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2019

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Journal of Materials Chemistry C

ISSN

2050-7526

e-ISSN

—

Svazek periodika

7

Číslo periodika v rámci svazku

23

Stát vydavatele periodika

GB - Spojené království Velké Británie a Severního Irska

Počet stran výsledku

7

Strana od-do

7013-7019

Kód UT WoS článku

000471714400018

EID výsledku v databázi Scopus

2-s2.0-85067308207