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

David Skoda; Pavel Urbanek; Jakub Sevcik; Lukas Munster; Vojtech Nadazdy; David A. Cullen; Pavel Bazant; Jan Antos; Ivo Kuritka

doi:10.1016/j.orgel.2018.05.037

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

David Skoda, Pavel Urbanek, Jakub Sevcik, Lukas Munster, Vojtech Nadazdy, David A. Cullen, Pavel Bazant, Jan Antos, Ivo Kuritka

Materials MicroAnalysis

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Abstract

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. A pronounced effect on the opening bias voltage of final devices with Co_xZn_1-xO nanoparticles was also observed.

Original language	English
Pages (from-to)	337-348
Number of pages	12
Journal	Organic Electronics
Volume	59
DOIs	https://doi.org/10.1016/j.orgel.2018.05.037
State	Published - Aug 2018

Funding

This work was supported by the Ministry of Education, Youth and Sports of the Czech Republic - Program NPU I (LO1504) and Internal Grant Agency of Tomas Bata University in Zlin (Grant Numbers: IGA/CPS/2016/007 and IGA/CPS/2017/008 ). This contribution was written with support of Operational Program Research and Development for Innovations co-funded by the European Regional Development Fund and national budget of Czech Republic , within the framework of project CPS - strengthening research capacity (reg. number: CZ.1.05/2.1.00/19.0409 ). The support from the Slovak Research and Development Agency under Project No. APVV-14-0891 is acknowledged as well. Scanning transmission electron microscopy was performed as part of a user project through Oak Ridge National Laboratory's Center for Nanophase Materials Sciences, which is a U.S. Department of Energy (DOE) Office of Science user facility and by instrumentation provided by the DOE Office of Nuclear Energy, Fuel Cycle R&D Program, and the Nuclear Science User Facilities. Authors thank Dr. J. Prokleska for the magnetic properties measurements. Magnetic properties measurements were performed in the Materials Growth and Measurement Laboratory MGML (see: http://mgml.eu ). This work was supported by the Ministry of Education, Youth and Sports of the Czech Republic - Program NPU I (LO1504) and Internal Grant Agency of Tomas Bata University in Zlin (Grant Numbers: IGA/CPS/2016/007 and IGA/CPS/2017/008). This contribution was written with support of Operational Program Research and Development for Innovations co-funded by the European Regional Development Fund and national budget of Czech Republic, within the framework of project CPS - strengthening research capacity (reg. number: CZ.1.05/2.1.00/19.0409). The support from the Slovak Research and Development Agency under Project No. APVV-14-0891 is acknowledged as well. Scanning transmission electron microscopy was performed as part of a user project through Oak Ridge National Laboratory's Center for Nanophase Materials Sciences, which is a U.S. Department of Energy (DOE) Office of Science user facility and by instrumentation provided by the DOE Office of Nuclear Energy, Fuel Cycle R&D Program, and the Nuclear Science User Facilities. Authors thank Dr. J. Prokleska for the magnetic properties measurements. Magnetic properties measurements were performed in the Materials Growth and Measurement Laboratory MGML (see: http://mgml.eu).

Keywords

Cobalt-doped zinc oxide
Colloidal nanoparticles
MEH-PPV polymer
Microwave synthesis
Optoelectronics
Polymer light emitting diodes

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10.1016/j.orgel.2018.05.037

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Skoda, D., Urbanek, P., Sevcik, J., Munster, L., Nadazdy, V., Cullen, D. A., Bazant, P., Antos, J., & Kuritka, I. (2018). 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. Organic Electronics, 59, 337-348. https://doi.org/10.1016/j.orgel.2018.05.037

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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 = "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. A pronounced effect on the opening bias voltage of final devices with CoxZn1-xO nanoparticles was also observed.",

keywords = "Cobalt-doped zinc oxide, Colloidal nanoparticles, MEH-PPV polymer, Microwave synthesis, Optoelectronics, Polymer light emitting diodes",

author = "David Skoda and Pavel Urbanek and Jakub Sevcik and Lukas Munster and Vojtech Nadazdy and Cullen, {David A.} and Pavel Bazant and Jan Antos and Ivo Kuritka",

note = "Publisher Copyright: {\textcopyright} 2018 Elsevier B.V.",

year = "2018",

month = aug,

doi = "10.1016/j.orgel.2018.05.037",

language = "English",

volume = "59",

pages = "337--348",

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Skoda, D, Urbanek, P, Sevcik, J, Munster, L, Nadazdy, V, Cullen, DA, Bazant, P, Antos, J & Kuritka, I 2018, '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', Organic Electronics, vol. 59, pp. 337-348. https://doi.org/10.1016/j.orgel.2018.05.037

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. / Skoda, David; Urbanek, Pavel; Sevcik, Jakub et al.
In: Organic Electronics, Vol. 59, 08.2018, p. 337-348.

Research output: Contribution to journal › Article › peer-review

TY - JOUR

T1 - 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

AU - Skoda, David

AU - Urbanek, Pavel

AU - Sevcik, Jakub

AU - Munster, Lukas

AU - Nadazdy, Vojtech

AU - Cullen, David A.

AU - Bazant, Pavel

AU - Antos, Jan

AU - Kuritka, Ivo

PY - 2018/8

Y1 - 2018/8

N2 - 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. A pronounced effect on the opening bias voltage of final devices with CoxZn1-xO nanoparticles was also observed.

AB - 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. A pronounced effect on the opening bias voltage of final devices with CoxZn1-xO nanoparticles was also observed.

KW - Cobalt-doped zinc oxide

KW - Colloidal nanoparticles

KW - MEH-PPV polymer

KW - Microwave synthesis

KW - Optoelectronics

KW - Polymer light emitting diodes

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U2 - 10.1016/j.orgel.2018.05.037

DO - 10.1016/j.orgel.2018.05.037

M3 - Article

AN - SCOPUS:85047824252

SN - 1566-1199

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JO - Organic Electronics

JF - Organic Electronics

ER -

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

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