Please use this identifier to cite or link to this item: http://scholarbank.nus.edu.sg/handle/10635/119906
Title: CHARGE INJECTION CONTACTS IN ORGANIC SEMICONDUCTOR DEVICES
Authors: DAGMAWI BELAINEH
Keywords: charge injection, workfunction, conductivity, ohmic, copper
Issue Date: 23-Jan-2015
Citation: DAGMAWI BELAINEH (2015-01-23). CHARGE INJECTION CONTACTS IN ORGANIC SEMICONDUCTOR DEVICES. ScholarBank@NUS Repository.
Abstract: ORGANIC SEMICONDUCTOR DEVICES COMPRISE ONE OR MORE ORGANIC SEMICONDUCTOR LAYERS ADJACENT TO CHARGE-INJECTION AND EXTRACTION CONTACTS. THIS THESIS FOCUSES ON DEVELOPING NEW UNDERSTANDING TO ACHIEVE BETTER CHARGE INJECTION CONTACTS. I STUDIED THE PROPERTIES OF A NEW HIGHLY-STABLE P-DOPED CONDUCTING POLYMER BLEND, POLY(3-METHOXYETHOXYETHOXYTHIOPHENE):POLY(4-HYDROXYSTYRENE) (S-P3MEET:PHOST) AND NEW P-DOPED CONDUCTING POLYMER BLENDS FORMULATED WITH PERFLUORINATED IONOMERS (PFIS), DEMONSTRATING THE RESILIENCE OF S-P3MEET:PHOST TO INJECTION-INDUCED DEDOPING WHICH LEADS TO CONDUCTIVITY FADING IN POLY(3,4-ETHYLENEDIOXYTHIOPHENE):POLY(STYRENESULFONIC ACID) (PEDT:PSSH). I ALSO SHOWED THAT WHILE SURFACE-SEGREGATION OF PFI CAN INCREASE WORKFUNCTION IN THE BLENDS, USING PEDT: PSSH: PFI AS MODEL, THIS DOES NOT ALWAYS BENEFIT HOLE INJECTION BECAUSE OF THE RESISTANCE ASSOCIATED WITH THE MOLECULARLY-THIN PFI OVERLAYER. I ALSO STUDIED THE SYSTEMATIC ?TUNING? OF THE WORKFUNCTION OF STABLE CU METAL AND I
URI: http://scholarbank.nus.edu.sg/handle/10635/119906
Appears in Collections:Ph.D Theses (Open)

Show full item record
Files in This Item:
File Description SizeFormatAccess SettingsVersion 
BelainehD.pdf4.16 MBAdobe PDF

OPEN

NoneView/Download

Page view(s)

127
checked on Nov 16, 2018

Download(s)

45
checked on Nov 16, 2018

Google ScholarTM

Check


Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.