Pentacene Active Channel Layers Prepared by Spin-Coating and Vacuum Evaporation Using Soluble Precursors for OFET Applications
Joint Authors
Ochiai, Shizuyasu
Kannappan, Santhakumar
Shin, Paik-Kyun
Palanisamy, Kumar
Source
Issue
Vol. 2012, Issue 2012 (31 Dec. 2012), pp.1-7, 7 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2012-10-17
Country of Publication
Egypt
No. of Pages
7
Main Subjects
Abstract EN
Pentacene OFETs of bottom-gate/bottom-contact were fabricated with three types of pentacene organic semiconductors and cross linked Poly(4-vinylphenol) or polycarbonate as gate dielectric layer.
Two different processes were used to prepare the pentacene active channel layers: (1) spin-coating on dielectric layer using two different soluble pentacene precursors of SAP and DMP; (2) vacuum evaporation on PC insulator.
X-ray diffraction studies revealed coexistence of thin film and bulk phase of pentacene from SAP and thin film phase of pentacene from DMP precursors.
The field effect mobility of 0.031 cm2/Vs and threshold voltage of −12.5 V was obtained from OFETs fabricated from SAP precursor, however, the pentacene OFETs from DMP under same preparation yielded high mobility of 0.09 cm2/Vs and threshold value decreased to −5 V.
It reflects that the mixed phase films had carrier mobilities inferior to films consisting solely of single phase.
For comparison, we have also fabricated pentacene OFETs by vacuum evaporation on polycarbonate as the gate dielectric and obtained charge carrier mobilities as large as 0.62 cm2/Vs and threshold voltage of −8.5 V.
We demonstrated that the spin-coated pentacene using soluble pentacene precursors could be alternative process technology for low cost, large area and low temperature fabrication of OFETs.
American Psychological Association (APA)
Ochiai, Shizuyasu& Palanisamy, Kumar& Kannappan, Santhakumar& Shin, Paik-Kyun. 2012. Pentacene Active Channel Layers Prepared by Spin-Coating and Vacuum Evaporation Using Soluble Precursors for OFET Applications. ISRN Condensed Matter Physics،Vol. 2012, no. 2012, pp.1-7.
https://search.emarefa.net/detail/BIM-462633
Modern Language Association (MLA)
Ochiai, Shizuyasu…[et al.]. Pentacene Active Channel Layers Prepared by Spin-Coating and Vacuum Evaporation Using Soluble Precursors for OFET Applications. ISRN Condensed Matter Physics No. 2012 (2012), pp.1-7.
https://search.emarefa.net/detail/BIM-462633
American Medical Association (AMA)
Ochiai, Shizuyasu& Palanisamy, Kumar& Kannappan, Santhakumar& Shin, Paik-Kyun. Pentacene Active Channel Layers Prepared by Spin-Coating and Vacuum Evaporation Using Soluble Precursors for OFET Applications. ISRN Condensed Matter Physics. 2012. Vol. 2012, no. 2012, pp.1-7.
https://search.emarefa.net/detail/BIM-462633
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-462633