Organic thin-film transistors using thin ormosil-based hybrid dielectric

Sunho Jeong, Dongjo Kim, Sul Lee, Bong Kyun Park, Joo Ho Moon

Research output: Contribution to journalArticle

8 Citations (Scopus)

Abstract

We synthesized a novel thermally-crosslinkable ormosil-based hybrid material as a solution-processable dielectric layer for organic thin-film transistors (OTFTs). Dielectrics with a thickness of 50-260 nm were fabricated via spin-coating in order to evaluate their applicability as an ultra-thin gate dielectric. It was observed that the capacitance of the hybrid dielectric increases with decreasing film thickness. Hybrid dielectrics with a thickness of 260 nm and 160 nm, respectively, exhibited adequate leakage current behavior. Coplanar-type OTFTs were fabricated using each of the hybrid dielectrics (i.e., thickness of 260 nm and 160 nm). The off-current, threshold voltage, and field-effect mobility of both transistors were analyzed to investigate the effects of capacitance and film thickness on the electrical performance of the transistors.

Original languageEnglish
Pages (from-to)7701-7705
Number of pages5
JournalThin Solid Films
Volume515
Issue number19 SPEC. ISS.
DOIs
Publication statusPublished - 2007 Jul 16

Fingerprint

Thin film transistors
transistors
thin films
Film thickness
Transistors
Capacitance
film thickness
capacitance
Gate dielectrics
Hybrid materials
Spin coating
Threshold voltage
Leakage currents
threshold voltage
coating
ormosil
leakage

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Surfaces and Interfaces
  • Surfaces, Coatings and Films
  • Metals and Alloys
  • Materials Chemistry

Cite this

Jeong, Sunho ; Kim, Dongjo ; Lee, Sul ; Park, Bong Kyun ; Moon, Joo Ho. / Organic thin-film transistors using thin ormosil-based hybrid dielectric. In: Thin Solid Films. 2007 ; Vol. 515, No. 19 SPEC. ISS. pp. 7701-7705.
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Organic thin-film transistors using thin ormosil-based hybrid dielectric. / Jeong, Sunho; Kim, Dongjo; Lee, Sul; Park, Bong Kyun; Moon, Joo Ho.

In: Thin Solid Films, Vol. 515, No. 19 SPEC. ISS., 16.07.2007, p. 7701-7705.

Research output: Contribution to journalArticle

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