Fabrication And Characterization Of Graphene-Based Ink

The main aim of the present study is to develop graphene-based ink with excellent stability, electrical and physical properties for printing electronics by utilizing spray coating and inkjet printing techniques. Firstly, comparison on the different types of graphene-like materials showed that gra...

Full description

Bibliographic Details
Main Author: Satia, Mohd Saidina Dandan
Format: Thesis
Language:English
Published: 2019
Subjects:
Online Access:http://eprints.usm.my/47845/1/Fabrication%20And%20Characterization%20Of%20Graphene-Based%20Ink.pdf
_version_ 1797011841543569408
author Satia, Mohd Saidina Dandan
author_facet Satia, Mohd Saidina Dandan
author_sort Satia, Mohd Saidina Dandan
collection USM
description The main aim of the present study is to develop graphene-based ink with excellent stability, electrical and physical properties for printing electronics by utilizing spray coating and inkjet printing techniques. Firstly, comparison on the different types of graphene-like materials showed that graphene foam (GF) exhibited the highest surface area with the value of 2136 m2g-1. Meanwhile, graphite nanoplatelets (GNPs) and synthetic graphite (SG) displayed highly crystalline structures with the presence of sharp and narrow (002) peak, and high-quality particles with lower ID/IG ratio. Secondly, results showed that viscosity and contact angle of the conductive inks increased significantly with increasing GF, GNPs and SG filler loadings in a polyester varnish (PV) binder. The incorporation of 10 vol.% GNPs improved the electrical conductivity of PV by 186 %, and only 40 % for SG and 10 % for GF at the same filler loading. Next, it is found that GNPs dispersed in ethylene glycol (EG) exhibited better stability with 85 % decrement of the initial concentration after a month, viscosity and wettability than those of propylene glycol (PG) and 2-propanol (IPA). On the other hand, GF dispersed in IPA:EG mixed solvent at ratio of 1:1 showed only 50 % decrement from the initial concentration after a month compared to those of GNPs inks at the same mixed ratio. In the last part, GF/poly(3,4-ethylenedioxythiophene) poly(styrenesulfonate) (PEDOT:PSS) hybrid ink exhibited better stability than GF ink and GF/silver nanoparticles (AgNPs) hybrid ink where the ink showed 30 % decrement from the concentration after a month, 100 % improvement in surface conductivity at 50 printed layers and gauge factor of 4.3. As a conclusion, printed GF/PEDOT:PSS hybrid ink has the potential to be used for strain sensor applications.
first_indexed 2024-03-06T15:40:13Z
format Thesis
id usm.eprints-47845
institution Universiti Sains Malaysia
language English
last_indexed 2024-03-06T15:40:13Z
publishDate 2019
record_format dspace
spelling usm.eprints-478452021-11-17T03:42:10Z http://eprints.usm.my/47845/ Fabrication And Characterization Of Graphene-Based Ink Satia, Mohd Saidina Dandan T Technology TA401-492 Materials of engineering and construction. Mechanics of materials The main aim of the present study is to develop graphene-based ink with excellent stability, electrical and physical properties for printing electronics by utilizing spray coating and inkjet printing techniques. Firstly, comparison on the different types of graphene-like materials showed that graphene foam (GF) exhibited the highest surface area with the value of 2136 m2g-1. Meanwhile, graphite nanoplatelets (GNPs) and synthetic graphite (SG) displayed highly crystalline structures with the presence of sharp and narrow (002) peak, and high-quality particles with lower ID/IG ratio. Secondly, results showed that viscosity and contact angle of the conductive inks increased significantly with increasing GF, GNPs and SG filler loadings in a polyester varnish (PV) binder. The incorporation of 10 vol.% GNPs improved the electrical conductivity of PV by 186 %, and only 40 % for SG and 10 % for GF at the same filler loading. Next, it is found that GNPs dispersed in ethylene glycol (EG) exhibited better stability with 85 % decrement of the initial concentration after a month, viscosity and wettability than those of propylene glycol (PG) and 2-propanol (IPA). On the other hand, GF dispersed in IPA:EG mixed solvent at ratio of 1:1 showed only 50 % decrement from the initial concentration after a month compared to those of GNPs inks at the same mixed ratio. In the last part, GF/poly(3,4-ethylenedioxythiophene) poly(styrenesulfonate) (PEDOT:PSS) hybrid ink exhibited better stability than GF ink and GF/silver nanoparticles (AgNPs) hybrid ink where the ink showed 30 % decrement from the concentration after a month, 100 % improvement in surface conductivity at 50 printed layers and gauge factor of 4.3. As a conclusion, printed GF/PEDOT:PSS hybrid ink has the potential to be used for strain sensor applications. 2019-10-01 Thesis NonPeerReviewed application/pdf en http://eprints.usm.my/47845/1/Fabrication%20And%20Characterization%20Of%20Graphene-Based%20Ink.pdf Satia, Mohd Saidina Dandan (2019) Fabrication And Characterization Of Graphene-Based Ink. PhD thesis, Universiti Sains Malaysia.
spellingShingle T Technology
TA401-492 Materials of engineering and construction. Mechanics of materials
Satia, Mohd Saidina Dandan
Fabrication And Characterization Of Graphene-Based Ink
title Fabrication And Characterization Of Graphene-Based Ink
title_full Fabrication And Characterization Of Graphene-Based Ink
title_fullStr Fabrication And Characterization Of Graphene-Based Ink
title_full_unstemmed Fabrication And Characterization Of Graphene-Based Ink
title_short Fabrication And Characterization Of Graphene-Based Ink
title_sort fabrication and characterization of graphene based ink
topic T Technology
TA401-492 Materials of engineering and construction. Mechanics of materials
url http://eprints.usm.my/47845/1/Fabrication%20And%20Characterization%20Of%20Graphene-Based%20Ink.pdf
work_keys_str_mv AT satiamohdsaidinadandan fabricationandcharacterizationofgraphenebasedink