Fully room-temperature IGZO thin film transistors adopting stacked gate dielectrics on flexible polycarbonate substrate

Hsiao Hsuan Hsu; Chun Yen Chang; Chun Hu Cheng; Shu Hung Yu; Ching Yuan Su; Chung Yen Su

doi:10.1016/j.sse.2013.08.009

Fully room-temperature IGZO thin film transistors adopting stacked gate dielectrics on flexible polycarbonate substrate

Hsiao Hsuan Hsu, Chun Yen Chang, Chun Hu Cheng^*, Shu Hung Yu, Ching Yuan Su, Chung Yen Su

^*此作品的通信作者

研究成果: 雜誌貢獻 › 期刊論文 › 同行評審

32 引文斯高帕斯（Scopus）

摘要

This study demonstrates the feasibility of producing an InGaZnO thin-film transistor (TFT) using a high-κ germanium oxide (GeO₂)/titanium oxide (TiO₂)/GeO₂ gate stack on a flexible polycarbonate substrate. The flexible TFT exhibited a small sub-threshold swing of 0.132 V/decade, an acceptable field effect mobility of 8 cm²/(V s), and a robust I_on/I_off ratio of 2.4 × 10⁷. The improved device performance can be attributed to the combined effect of high-κ TiO₂ and the large band gap of GeO₂ that exhibits a tendency to remain in a Ge⁴⁺ oxidation state at room temperature.

原文	英語
頁（從 - 到）	194-197
頁數	4
期刊	Solid-State Electronics
卷	89
DOIs	https://doi.org/10.1016/j.sse.2013.08.009
出版狀態	已發佈 - 2013

ASJC Scopus subject areas

電子、光磁材料
凝聚態物理學
材料化學
電氣與電子工程

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10.1016/j.sse.2013.08.009

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引用此

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title = "Fully room-temperature IGZO thin film transistors adopting stacked gate dielectrics on flexible polycarbonate substrate",

abstract = "This study demonstrates the feasibility of producing an InGaZnO thin-film transistor (TFT) using a high-κ germanium oxide (GeO2)/titanium oxide (TiO2)/GeO2 gate stack on a flexible polycarbonate substrate. The flexible TFT exhibited a small sub-threshold swing of 0.132 V/decade, an acceptable field effect mobility of 8 cm2/(V s), and a robust Ion/Ioff ratio of 2.4 × 107. The improved device performance can be attributed to the combined effect of high-κ TiO2 and the large band gap of GeO2 that exhibits a tendency to remain in a Ge4+ oxidation state at room temperature.",

keywords = "GeO, InGaZnO (IGZO), Thin-film transistor (TFT), TiO",

author = "Hsu, {Hsiao Hsuan} and Chang, {Chun Yen} and Cheng, {Chun Hu} and Yu, {Shu Hung} and Su, {Ching Yuan} and Su, {Chung Yen}",

note = "Funding Information: This work was supported by the National Science Council (NSC) of Taiwan, Republic of China , under contract No. NSC 102-2221-E-003-019 .",

year = "2013",

doi = "10.1016/j.sse.2013.08.009",

language = "English",

volume = "89",

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journal = "Solid-State Electronics",

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T1 - Fully room-temperature IGZO thin film transistors adopting stacked gate dielectrics on flexible polycarbonate substrate

AU - Hsu, Hsiao Hsuan

AU - Chang, Chun Yen

AU - Cheng, Chun Hu

AU - Yu, Shu Hung

AU - Su, Ching Yuan

AU - Su, Chung Yen

N1 - Funding Information: This work was supported by the National Science Council (NSC) of Taiwan, Republic of China , under contract No. NSC 102-2221-E-003-019 .

PY - 2013

Y1 - 2013

N2 - This study demonstrates the feasibility of producing an InGaZnO thin-film transistor (TFT) using a high-κ germanium oxide (GeO2)/titanium oxide (TiO2)/GeO2 gate stack on a flexible polycarbonate substrate. The flexible TFT exhibited a small sub-threshold swing of 0.132 V/decade, an acceptable field effect mobility of 8 cm2/(V s), and a robust Ion/Ioff ratio of 2.4 × 107. The improved device performance can be attributed to the combined effect of high-κ TiO2 and the large band gap of GeO2 that exhibits a tendency to remain in a Ge4+ oxidation state at room temperature.

AB - This study demonstrates the feasibility of producing an InGaZnO thin-film transistor (TFT) using a high-κ germanium oxide (GeO2)/titanium oxide (TiO2)/GeO2 gate stack on a flexible polycarbonate substrate. The flexible TFT exhibited a small sub-threshold swing of 0.132 V/decade, an acceptable field effect mobility of 8 cm2/(V s), and a robust Ion/Ioff ratio of 2.4 × 107. The improved device performance can be attributed to the combined effect of high-κ TiO2 and the large band gap of GeO2 that exhibits a tendency to remain in a Ge4+ oxidation state at room temperature.

KW - GeO

KW - InGaZnO (IGZO)

KW - Thin-film transistor (TFT)

KW - TiO

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DO - 10.1016/j.sse.2013.08.009

M3 - Article

AN - SCOPUS:84884765653

SN - 0038-1101

VL - 89

SP - 194

EP - 197

JO - Solid-State Electronics

JF - Solid-State Electronics

ER -

Fully room-temperature IGZO thin film transistors adopting stacked gate dielectrics on flexible polycarbonate substrate

摘要

ASJC Scopus subject areas

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