Presentation 2017-10-25
[Invited Talk] A Study on the Device Characteristics of Pentacene-based OFET with HfO2 Gate Insulator
Yasutaka Maeda, Yeyuan Liu, Mizuha Hiroki, Shun-ichiro Ohmi,
PDF Download Page PDF download Page Link
Abstract(in Japanese) (See Japanese page)
Abstract(in English) The grain growth of a pentacene thin film, which is a well-known p-type organic semiconductor, is sensitive to underneath materials and deposition temperature. In this paper, the pentacene film deposited at 100oC on a HfO2 bottom-gate insulator, which is one of the most famous high-k materials, was investigated to reduce the operation voltage of OFETs. It was found that the grain size of a pentacene film was increased to 10 um, and it was larger than that on SiO2. Furthermore, a nitrogen-doped LaB6 interfacial layer deposited on an SiO2 gate insulator also increased the grain size of the pentacene film, and the device characteristics of the OFET improved.
Keyword(in Japanese) (See Japanese page)
Keyword(in English) pentacene / HfO2 / nitrogen-doped LaB6 / interface control / high temperature deposition / surface morphology
Paper # SDM2017-54
Date of Issue 2017-10-18 (SDM)

Conference Information
Committee SDM
Conference Date 2017/10/25(2days)
Place (in Japanese) (See Japanese page)
Place (in English) Niche, Tohoku Univ.
Topics (in Japanese) (See Japanese page)
Topics (in English) Process Science and New Process Technology
Chair Tatsuya Kunikiyo(Renesas)
Vice Chair Takahiro Shinada(Tohoku Univ.)
Secretary Takahiro Shinada(Tohoku Univ.)
Assistant Hiroya Ikeda(Shizuoka Univ.) / Tetsu Morooka(TOSHIBA MEMORY)

Paper Information
Registration To Technical Committee on Silicon Device and Materials
Language JPN
Title (in Japanese) (See Japanese page)
Sub Title (in Japanese) (See Japanese page)
Title (in English) [Invited Talk] A Study on the Device Characteristics of Pentacene-based OFET with HfO2 Gate Insulator
Sub Title (in English)
Keyword(1) pentacene
Keyword(2) HfO2
Keyword(3) nitrogen-doped LaB6
Keyword(4) interface control
Keyword(5) high temperature deposition
Keyword(6) surface morphology
1st Author's Name Yasutaka Maeda
1st Author's Affiliation Tokyo Institute of Technology(Tokyo Tech.)
2nd Author's Name Yeyuan Liu
2nd Author's Affiliation Tokyo Institute of Technology(Tokyo Tech.)
3rd Author's Name Mizuha Hiroki
3rd Author's Affiliation Tokyo Institute of Technology(Tokyo Tech.)
4th Author's Name Shun-ichiro Ohmi
4th Author's Affiliation Tokyo Institute of Technology(Tokyo Tech.)
Date 2017-10-25
Paper # SDM2017-54
Volume (vol) vol.117
Number (no) SDM-260
Page pp.pp.25-30(SDM),
#Pages 6
Date of Issue 2017-10-18 (SDM)