Gravure printed sol-gel derived AlOOH hybrid nanocomposite thin films for printed electronics

Terho Kololuoma (Corresponding Author), Jaakko Leppäniemi, Himadri Majumdar, Rita Branquinho, Elena Hervei-Valcu, Viorica Musat, Rodrigo Martins, Elvira Fortunato, Ari Alastalo

Research output: Contribution to journalArticleScientificpeer-review

5 Citations (Scopus)

Abstract

We report a sol-gel approach to fabricate aluminum oxyhydroxide (AlOOH)-based inks for the gravure printing of high-dielectric-constant nanocomposite films. By reacting 3-glycidoxypropyl-trimethoxysilane (GPTS) with aluminum oxyhydroxide (AlOOH) nanoparticles under constant bead milling, inks suitable for gravure printing were obtained. The calculated relative dielectric constants based on the measured capacitances and film thicknesses for the gravure-printed GPTS:AlOOH nanocomposites varied between 7 and 11 at a frequency of 10 kHz. The dielectric constant depended on the mixing ratio of the composite and was found to follow the Maxwell-Garnett ternary-system mixing rule, indicating the presence of micro/nanopores, which affect the electrical properties of the fabricated films. An increasing leakage current with increasing AlOOH content was observed. The high leakage current was reduced by printing two-layer films. The double-layered gravure-coated films exhibited a similar capacitance density, but a clearly lower leakage current and fewer electrical breakdowns compared to single-layered films with comparable film compositions and film thicknesses. The best composite yielded a capacitance density of 109 ± 2 pF mm-2 at 10 kHz frequency and a leakage current density of 60 ± 20 µA cm-2 at a 0.5 MV cm-1 electric field as a single layer. The calculated relative dielectric constant at 10 kHz frequency for this composition was 11.2 ± 0.5.
Original languageEnglish
Pages (from-to)1776-1786
JournalJournal of Materials Chemistry C
Volume3
Issue number8
DOIs
Publication statusPublished - 2015
MoE publication typeA1 Journal article-refereed

Fingerprint

Nanocomposite films
Sol-gels
Electronic equipment
Leakage currents
Permittivity
Thin films
Printing
Capacitance
Aluminum
Ink
Film thickness
Nanopores
Composite materials
Ternary systems
Chemical analysis
Nanocomposites
Electric properties
Current density
Electric fields
aluminum oxide hydroxide

Keywords

  • sol-gel
  • aluminium oxyhydroxide
  • gravure printing
  • nanocomposites

Cite this

Kololuoma, Terho ; Leppäniemi, Jaakko ; Majumdar, Himadri ; Branquinho, Rita ; Hervei-Valcu, Elena ; Musat, Viorica ; Martins, Rodrigo ; Fortunato, Elvira ; Alastalo, Ari. / Gravure printed sol-gel derived AlOOH hybrid nanocomposite thin films for printed electronics. In: Journal of Materials Chemistry C. 2015 ; Vol. 3, No. 8. pp. 1776-1786.
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title = "Gravure printed sol-gel derived AlOOH hybrid nanocomposite thin films for printed electronics",
abstract = "We report a sol-gel approach to fabricate aluminum oxyhydroxide (AlOOH)-based inks for the gravure printing of high-dielectric-constant nanocomposite films. By reacting 3-glycidoxypropyl-trimethoxysilane (GPTS) with aluminum oxyhydroxide (AlOOH) nanoparticles under constant bead milling, inks suitable for gravure printing were obtained. The calculated relative dielectric constants based on the measured capacitances and film thicknesses for the gravure-printed GPTS:AlOOH nanocomposites varied between 7 and 11 at a frequency of 10 kHz. The dielectric constant depended on the mixing ratio of the composite and was found to follow the Maxwell-Garnett ternary-system mixing rule, indicating the presence of micro/nanopores, which affect the electrical properties of the fabricated films. An increasing leakage current with increasing AlOOH content was observed. The high leakage current was reduced by printing two-layer films. The double-layered gravure-coated films exhibited a similar capacitance density, but a clearly lower leakage current and fewer electrical breakdowns compared to single-layered films with comparable film compositions and film thicknesses. The best composite yielded a capacitance density of 109 ± 2 pF mm-2 at 10 kHz frequency and a leakage current density of 60 ± 20 µA cm-2 at a 0.5 MV cm-1 electric field as a single layer. The calculated relative dielectric constant at 10 kHz frequency for this composition was 11.2 ± 0.5.",
keywords = "sol-gel, aluminium oxyhydroxide, gravure printing, nanocomposites",
author = "Terho Kololuoma and Jaakko Lepp{\"a}niemi and Himadri Majumdar and Rita Branquinho and Elena Hervei-Valcu and Viorica Musat and Rodrigo Martins and Elvira Fortunato and Ari Alastalo",
year = "2015",
doi = "10.1039/C4TC02022G",
language = "English",
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Gravure printed sol-gel derived AlOOH hybrid nanocomposite thin films for printed electronics. / Kololuoma, Terho (Corresponding Author); Leppäniemi, Jaakko; Majumdar, Himadri; Branquinho, Rita; Hervei-Valcu, Elena; Musat, Viorica; Martins, Rodrigo; Fortunato, Elvira; Alastalo, Ari.

In: Journal of Materials Chemistry C, Vol. 3, No. 8, 2015, p. 1776-1786.

Research output: Contribution to journalArticleScientificpeer-review

TY - JOUR

T1 - Gravure printed sol-gel derived AlOOH hybrid nanocomposite thin films for printed electronics

AU - Kololuoma, Terho

AU - Leppäniemi, Jaakko

AU - Majumdar, Himadri

AU - Branquinho, Rita

AU - Hervei-Valcu, Elena

AU - Musat, Viorica

AU - Martins, Rodrigo

AU - Fortunato, Elvira

AU - Alastalo, Ari

PY - 2015

Y1 - 2015

N2 - We report a sol-gel approach to fabricate aluminum oxyhydroxide (AlOOH)-based inks for the gravure printing of high-dielectric-constant nanocomposite films. By reacting 3-glycidoxypropyl-trimethoxysilane (GPTS) with aluminum oxyhydroxide (AlOOH) nanoparticles under constant bead milling, inks suitable for gravure printing were obtained. The calculated relative dielectric constants based on the measured capacitances and film thicknesses for the gravure-printed GPTS:AlOOH nanocomposites varied between 7 and 11 at a frequency of 10 kHz. The dielectric constant depended on the mixing ratio of the composite and was found to follow the Maxwell-Garnett ternary-system mixing rule, indicating the presence of micro/nanopores, which affect the electrical properties of the fabricated films. An increasing leakage current with increasing AlOOH content was observed. The high leakage current was reduced by printing two-layer films. The double-layered gravure-coated films exhibited a similar capacitance density, but a clearly lower leakage current and fewer electrical breakdowns compared to single-layered films with comparable film compositions and film thicknesses. The best composite yielded a capacitance density of 109 ± 2 pF mm-2 at 10 kHz frequency and a leakage current density of 60 ± 20 µA cm-2 at a 0.5 MV cm-1 electric field as a single layer. The calculated relative dielectric constant at 10 kHz frequency for this composition was 11.2 ± 0.5.

AB - We report a sol-gel approach to fabricate aluminum oxyhydroxide (AlOOH)-based inks for the gravure printing of high-dielectric-constant nanocomposite films. By reacting 3-glycidoxypropyl-trimethoxysilane (GPTS) with aluminum oxyhydroxide (AlOOH) nanoparticles under constant bead milling, inks suitable for gravure printing were obtained. The calculated relative dielectric constants based on the measured capacitances and film thicknesses for the gravure-printed GPTS:AlOOH nanocomposites varied between 7 and 11 at a frequency of 10 kHz. The dielectric constant depended on the mixing ratio of the composite and was found to follow the Maxwell-Garnett ternary-system mixing rule, indicating the presence of micro/nanopores, which affect the electrical properties of the fabricated films. An increasing leakage current with increasing AlOOH content was observed. The high leakage current was reduced by printing two-layer films. The double-layered gravure-coated films exhibited a similar capacitance density, but a clearly lower leakage current and fewer electrical breakdowns compared to single-layered films with comparable film compositions and film thicknesses. The best composite yielded a capacitance density of 109 ± 2 pF mm-2 at 10 kHz frequency and a leakage current density of 60 ± 20 µA cm-2 at a 0.5 MV cm-1 electric field as a single layer. The calculated relative dielectric constant at 10 kHz frequency for this composition was 11.2 ± 0.5.

KW - sol-gel

KW - aluminium oxyhydroxide

KW - gravure printing

KW - nanocomposites

U2 - 10.1039/C4TC02022G

DO - 10.1039/C4TC02022G

M3 - Article

VL - 3

SP - 1776

EP - 1786

JO - Journal of Materials Chemistry C

JF - Journal of Materials Chemistry C

SN - 2050-7526

IS - 8

ER -