Colloidal cobalt-doped ZnO nanoparticles by microwave-assisted synthesis and their utilization in thin composite layers with MEH-PPV as an electroluminescent material for polymer light emitting diodes

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F70883521%3A28110%2F18%3A63518762" target="_blank" >RIV/70883521:28110/18:63518762 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/70883521:28610/18:63518762

Výsledek na webu

<a href="http://dx.doi.org/10.1016/j.orgel.2018.05.037" target="_blank" >http://dx.doi.org/10.1016/j.orgel.2018.05.037</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.orgel.2018.05.037" target="_blank" >10.1016/j.orgel.2018.05.037</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Colloidal cobalt-doped ZnO nanoparticles by microwave-assisted synthesis and their utilization in thin composite layers with MEH-PPV as an electroluminescent material for polymer light emitting diodes

Popis výsledku v původním jazyce

CoxZn1-xO (x = 0.01, 0.05 and 0.1) nanoparticles were prepared by microwave-assisted polyol method from zincacetate dihydrate and Co(II) acetylacetonate. The reactions were performed in diethylene glycol (DEG) at 250 °Cwith the use of oleic acid as a surfactant. Resulting nanoparticle (ca. 10 nm) precipitates were washed withmethanol and dried or kept as colloidal solutions redispersed in toluene. Colloidal solutions were mixed with thePoly [2-methoxy-5-(2-ethylhexyloxy)-1,4-phenylenevinylene] (MEH-PPV) polymer to produce thin nano-composite layers with specific optoelectronic properties. The electronic structure in terms of density of states(DOS) of MEH-PPV and MEH-PPV/nanocomposite layers was investigated by recently proposed energy resolvedelectrochemical impedance spectroscopy method. The MEH-PPV polymer and its nanocomposites with ZnO orCoxZn1-xO nanoparticles were used as thin active layers in polymer light emitting diodes (PLED). The nano-composite layers exhibited optoelectronic properties which were found to be beneficial as the active layer inPLEDs, exhibiting an order of magnitude enhancement in electroluminescence intensity. A pronounced effect onthe opening bias voltage of final devices with CoxZn1-xO nanoparticles was also observed.

Název v anglickém jazyce

Colloidal cobalt-doped ZnO nanoparticles by microwave-assisted synthesis and their utilization in thin composite layers with MEH-PPV as an electroluminescent material for polymer light emitting diodes

Popis výsledku anglicky

CoxZn1-xO (x = 0.01, 0.05 and 0.1) nanoparticles were prepared by microwave-assisted polyol method from zincacetate dihydrate and Co(II) acetylacetonate. The reactions were performed in diethylene glycol (DEG) at 250 °Cwith the use of oleic acid as a surfactant. Resulting nanoparticle (ca. 10 nm) precipitates were washed withmethanol and dried or kept as colloidal solutions redispersed in toluene. Colloidal solutions were mixed with thePoly [2-methoxy-5-(2-ethylhexyloxy)-1,4-phenylenevinylene] (MEH-PPV) polymer to produce thin nano-composite layers with specific optoelectronic properties. The electronic structure in terms of density of states(DOS) of MEH-PPV and MEH-PPV/nanocomposite layers was investigated by recently proposed energy resolvedelectrochemical impedance spectroscopy method. The MEH-PPV polymer and its nanocomposites with ZnO orCoxZn1-xO nanoparticles were used as thin active layers in polymer light emitting diodes (PLED). The nano-composite layers exhibited optoelectronic properties which were found to be beneficial as the active layer inPLEDs, exhibiting an order of magnitude enhancement in electroluminescence intensity. A pronounced effect onthe opening bias voltage of final devices with CoxZn1-xO nanoparticles was also observed.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

21001 - Nano-materials (production and properties)

Projekt

Výsledek vznikl pri realizaci vícero projektů. Více informací v záložce Projekty.

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)<br>S - Specificky vyzkum na vysokych skolach

Rok uplatnění

2018

Kód důvěrnosti údajů

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

Název periodika

Organic Electronics: physics, materials, applications

ISSN

1566-1199

e-ISSN

—

Svazek periodika

59

Číslo periodika v rámci svazku

neuvedeno

Stát vydavatele periodika

NL - Nizozemsko

Počet stran výsledku

12

Strana od-do

337-348

Kód UT WoS článku

000452862400051

EID výsledku v databázi Scopus

2-s2.0-85047824252