skip to main content
DOE PAGES title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: 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

Abstract

In this study, Co xZn 1-xO (x = 0.01, 0.05 and 0.1) nanoparticles were prepared by microwave-assisted polyol method from zinc acetate dihydrate and Co(II) acetylacetonate. The reactions were performed in diethylene glycol (DEG) at 250 °C with the use of oleic acid as a surfactant. Resulting nanoparticle (ca. 10 nm) precipitates were washed with methanol and dried or kept as colloidal solutions redispersed in toluene. Colloidal solutions were mixed with the Poly [2-methoxy-5-(2-ethylhexyloxy)-1,4-phenylenevinylene] (MEH-PPV) polymer to produce thin nanocomposite 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 resolved electrochemical impedance spectroscopy method. The MEH-PPV polymer and its nanocomposites with ZnO or Co xZn 1-xO nanoparticles were used as thin active layers in polymer light emitting diodes (PLED). The nanocomposite layers exhibited optoelectronic properties which were found to be beneficial as the active layer in PLEDs, exhibiting an order of magnitude enhancement in electroluminescence intensity. Finally, a pronounced effect on the opening bias voltage of final devices with Co xZn 1-xO nanoparticles was also observed.

Authors:
ORCiD logo [1];  [1];  [1];  [1];  [2]; ORCiD logo [3];  [1];  [1];  [1]
  1. Tomas Bata University in Zlin (Czech Republic)
  2. Slovak Academy of Sciences, Bratislava (Slovak Republic)
  3. Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
Publication Date:
Research Org.:
Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
Sponsoring Org.:
USDOE Office of Science (SC); USDOE Office of Nuclear Energy (NE)
OSTI Identifier:
1490589
Grant/Contract Number:  
[AC05-00OR22725]
Resource Type:
Accepted Manuscript
Journal Name:
Organic Electronics
Additional Journal Information:
[ Journal Volume: 59; Journal Issue: C]; Journal ID: ISSN 1566-1199
Publisher:
Elsevier
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE

Citation Formats

Skoda, David, Urbanek, Pavel, Sevcik, Jakub, Munster, Lukas, Nadazdy, Vojtech, Cullen, David A., Bazant, Pavel, Antos, Jan, and Kuritka, Ivo. 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. United States: N. p., 2018. Web. doi:10.1016/j.orgel.2018.05.037.
Skoda, David, Urbanek, Pavel, Sevcik, Jakub, Munster, Lukas, Nadazdy, Vojtech, Cullen, David A., Bazant, Pavel, Antos, Jan, & Kuritka, Ivo. 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. United States. doi:10.1016/j.orgel.2018.05.037.
Skoda, David, Urbanek, Pavel, Sevcik, Jakub, Munster, Lukas, Nadazdy, Vojtech, Cullen, David A., Bazant, Pavel, Antos, Jan, and Kuritka, Ivo. Mon . "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". United States. doi:10.1016/j.orgel.2018.05.037. https://www.osti.gov/servlets/purl/1490589.
@article{osti_1490589,
title = {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},
author = {Skoda, David and Urbanek, Pavel and Sevcik, Jakub and Munster, Lukas and Nadazdy, Vojtech and Cullen, David A. and Bazant, Pavel and Antos, Jan and Kuritka, Ivo},
abstractNote = {In this study, CoxZn1-xO (x = 0.01, 0.05 and 0.1) nanoparticles were prepared by microwave-assisted polyol method from zinc acetate dihydrate and Co(II) acetylacetonate. The reactions were performed in diethylene glycol (DEG) at 250 °C with the use of oleic acid as a surfactant. Resulting nanoparticle (ca. 10 nm) precipitates were washed with methanol and dried or kept as colloidal solutions redispersed in toluene. Colloidal solutions were mixed with the Poly [2-methoxy-5-(2-ethylhexyloxy)-1,4-phenylenevinylene] (MEH-PPV) polymer to produce thin nanocomposite 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 resolved electrochemical impedance spectroscopy method. The MEH-PPV polymer and its nanocomposites with ZnO or CoxZn1-xO nanoparticles were used as thin active layers in polymer light emitting diodes (PLED). The nanocomposite layers exhibited optoelectronic properties which were found to be beneficial as the active layer in PLEDs, exhibiting an order of magnitude enhancement in electroluminescence intensity. Finally, a pronounced effect on the opening bias voltage of final devices with CoxZn1-xO nanoparticles was also observed.},
doi = {10.1016/j.orgel.2018.05.037},
journal = {Organic Electronics},
number = [C],
volume = [59],
place = {United States},
year = {2018},
month = {5}
}

Journal Article:
Free Publicly Available Full Text
Publisher's Version of Record

Citation Metrics:
Cited by: 4 works
Citation information provided by
Web of Science

Save / Share: