The improvement of electrical characteristic of solution processed triisopropylsilyl pentacene organic thin-film transistors employing hexamethyldisilazane treatment

Yong Hoon Kim, Jae Hoon Lee, Min Koo Han, Jeong In Han

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

1 Scopus citations

Abstract

The field-effect mobility of triisopropylsilyl (TIPS) pentacene organic thin-film transistors (OTFTs) is increased considerably by employing hexamethyldisilazane (HMDS) treatment on poly-4-vinylphenol (PVP) gate insulator. A simple spin coating of HMDS on PVP gate insulator of OTFTs suppressed the void formation significantly and improved structural morphology of pentacene film. The field-effect mobility of OTFT where the TIPS pentacene was spin coated was increased from 0.01 cm2V-1s -1 to 0.1 cm2V-1s-1 after HMDS treatment. The threshold voltage was decreased from 2.8 V to -2.0 V. We have also fabricated ink-jet printed OTFTs and investigated the effect of HMDS treatment on ink-jet printed OTFTs. The field-effect mobility of OTFT was not increased significantly by HMDS treatment while the threshold voltage of the device was reduced considerably. The threshold voltage of untreated OTFT was +11.1V while that of HMDS treated OTFT was -3.0 V. Our experiment results suggest that the HMDS treatment improved the characteristics of OTFTs. copyright The Electrochemical Society.

Original languageEnglish
Title of host publicationThin Film Transistor Technology
PublisherElectrochemical Society Inc.
Pages279-285
Number of pages7
Edition8
ISBN (Electronic)1566775086
DOIs
StatePublished - 2006
EventThin Film Transistor Technologies 8 - 210th Electrochemical Society Meeting - Cancun, Mexico
Duration: 29 Oct 20063 Nov 2006

Publication series

NameECS Transactions
Number8
Volume3
ISSN (Print)1938-5862
ISSN (Electronic)1938-6737

Conference

ConferenceThin Film Transistor Technologies 8 - 210th Electrochemical Society Meeting
Country/TerritoryMexico
CityCancun
Period29/10/063/11/06

Fingerprint

Dive into the research topics of 'The improvement of electrical characteristic of solution processed triisopropylsilyl pentacene organic thin-film transistors employing hexamethyldisilazane treatment'. Together they form a unique fingerprint.

Cite this