Synthesis and characterization of reduced grahene oxide (rGO) / tips-pentacene composite material for organic thin film transistor (OTFT) sensor platform
Organic thin film transistor (OTFT) has drawn a lot of attention due to their advantages of flexible, transparent, easy to fabricate and cost effective production. The main problem occurred in OTFT was its lower ion mobility but higher Ion/Ioff ratio which could prevent their application for high pe...
Saved in:
| Format: | Thesis |
|---|---|
| Language: | English |
| Subjects: | |
| Online Access: | http://dspace.unimap.edu.my:80/xmlui/bitstream/123456789/77066/1/Page%201-24.pdf http://dspace.unimap.edu.my:80/xmlui/bitstream/123456789/77066/2/Full%20text.pdf http://dspace.unimap.edu.my:80/xmlui/bitstream/123456789/77066/4/Nurhazwani.pdf |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| id |
my-unimap-77066 |
|---|---|
| record_format |
uketd_dc |
| spelling |
my-unimap-770662022-11-24T06:40:34Z Synthesis and characterization of reduced grahene oxide (rGO) / tips-pentacene composite material for organic thin film transistor (OTFT) sensor platform Mohd Noor, Ahmad, Prof. Dr. Organic thin film transistor (OTFT) has drawn a lot of attention due to their advantages of flexible, transparent, easy to fabricate and cost effective production. The main problem occurred in OTFT was its lower ion mobility but higher Ion/Ioff ratio which could prevent their application for high performance electronic devices. Graphene material displayed an excellent carrier mobility but lower Ion/Ioff ratio. So, the objective of this research was to develop a reduced graphene oxide (rGO)/TIPS-pentacene composite material based OTFT sensor platform to overcome these limitations. Graphene oxide (GO) was synthesized using Tour’s method and chemically reduced using ascorbic acid (LAA), fomamidinesulfinic acid (FAS) and sodium sulphite (Na2SO3). The rGO were characterized using Fourier transforms infrared spectroscopy (FTIR), X-Ray Diffraction (XRD), Thermal Gravimetric Analyzer (TGA), Field emission scanning electron microscopy (FESEM), four point probe and semiconductor parameter analyzer (SPA) to confirm the reduction of rGO. From this characterization, it was found that rGO-FAS was a better reducing agent, which resulted better device performance. For fabrication of OTFT device, polymethylmethacrylate (PMMA) and TIPS-pentacene were deposited on Poly (ethylene terephthalate) (PET) substrate by spin coating method. Universiti Malaysia Perlis (UniMAP) Thesis en http://dspace.unimap.edu.my:80/xmlui/handle/123456789/77066 http://dspace.unimap.edu.my:80/xmlui/bitstream/123456789/77066/3/license.txt 8a4605be74aa9ea9d79846c1fba20a33 http://dspace.unimap.edu.my:80/xmlui/bitstream/123456789/77066/1/Page%201-24.pdf f5ecbed5f6332ce440611e7a3aa15006 http://dspace.unimap.edu.my:80/xmlui/bitstream/123456789/77066/2/Full%20text.pdf 34a7d5fababd797a6a87eb5c20c5dded http://dspace.unimap.edu.my:80/xmlui/bitstream/123456789/77066/4/Nurhazwani.pdf 94e31d0a4ac3c425f945c16b9c2d3408 Universiti Malaysia Perlis (UniMAP) Thin film transistors Graphene Organic thin film transistor (OTFT) Thin film School of Materials Engineering |
| institution |
Universiti Malaysia Perlis |
| collection |
UniMAP Institutional Repository |
| language |
English |
| advisor |
Mohd Noor, Ahmad, Prof. Dr. |
| topic |
Thin film transistors Graphene Organic thin film transistor (OTFT) Thin film |
| spellingShingle |
Thin film transistors Graphene Organic thin film transistor (OTFT) Thin film Synthesis and characterization of reduced grahene oxide (rGO) / tips-pentacene composite material for organic thin film transistor (OTFT) sensor platform |
| description |
Organic thin film transistor (OTFT) has drawn a lot of attention due to their advantages of flexible, transparent, easy to fabricate and cost effective production. The main problem occurred in OTFT was its lower ion mobility but higher Ion/Ioff ratio which could prevent their application for high performance electronic devices. Graphene material displayed an excellent carrier mobility but lower Ion/Ioff ratio. So, the objective of this research was to develop a reduced graphene oxide (rGO)/TIPS-pentacene composite material based OTFT sensor platform to overcome these limitations. Graphene oxide (GO) was synthesized using Tour’s method and chemically reduced using ascorbic acid (LAA), fomamidinesulfinic acid (FAS) and sodium sulphite (Na2SO3). The rGO were
characterized using Fourier transforms infrared spectroscopy (FTIR), X-Ray Diffraction (XRD), Thermal Gravimetric Analyzer (TGA), Field emission scanning electron microscopy (FESEM), four point probe and semiconductor parameter analyzer (SPA) to
confirm the reduction of rGO. From this characterization, it was found that rGO-FAS was a better reducing agent, which resulted better device performance. For fabrication of OTFT device, polymethylmethacrylate (PMMA) and TIPS-pentacene were deposited on Poly (ethylene terephthalate) (PET) substrate by spin coating method. |
| format |
Thesis |
| title |
Synthesis and characterization of reduced grahene oxide (rGO) / tips-pentacene composite material for organic thin film transistor (OTFT) sensor platform |
| title_short |
Synthesis and characterization of reduced grahene oxide (rGO) / tips-pentacene composite material for organic thin film transistor (OTFT) sensor platform |
| title_full |
Synthesis and characterization of reduced grahene oxide (rGO) / tips-pentacene composite material for organic thin film transistor (OTFT) sensor platform |
| title_fullStr |
Synthesis and characterization of reduced grahene oxide (rGO) / tips-pentacene composite material for organic thin film transistor (OTFT) sensor platform |
| title_full_unstemmed |
Synthesis and characterization of reduced grahene oxide (rGO) / tips-pentacene composite material for organic thin film transistor (OTFT) sensor platform |
| title_sort |
synthesis and characterization of reduced grahene oxide (rgo) / tips-pentacene composite material for organic thin film transistor (otft) sensor platform |
| granting_institution |
Universiti Malaysia Perlis (UniMAP) |
| granting_department |
School of Materials Engineering |
| url |
http://dspace.unimap.edu.my:80/xmlui/bitstream/123456789/77066/1/Page%201-24.pdf http://dspace.unimap.edu.my:80/xmlui/bitstream/123456789/77066/2/Full%20text.pdf http://dspace.unimap.edu.my:80/xmlui/bitstream/123456789/77066/4/Nurhazwani.pdf |
| _version_ |
1776104231567097856 |