Comparison of electrical characteristics for p-type and n-type organic thin film transistors using copper phthalocyanine

Kihyun Kim; Tae Ho Kwak; Mi Yeon Cho; Jin Woo Lee; Jinsoo Joo

doi:10.1016/j.synthmet.2008.03.028

Comparison of electrical characteristics for p-type and n-type organic thin film transistors using copper phthalocyanine

Kihyun Kim, Tae Ho Kwak, Mi Yeon Cho, Jin Woo Lee, Jinsoo Joo

Research output: Contribution to journal › Article › peer-review

16 Citations (Scopus)

Abstract

The p-type and n-type organic thin film transistors (OTFTs) were fabricated in the same experimental conditions by using hexadecahydro copper phthalocyanine (H₁₆CuPc) and hexadecafluoro copper phthalocynine (F₁₆CuPc) molecules, respectively. The mobilities of H₁₆CuPc and F₁₆CuPc-based OTFT devices in saturation region were measured to be ∼1.22 × 10^-3 cm²/V s and ∼1.04 × 10^-3 cm²/V s, respectively. The temperature dependence of the mobility and activation energy (E_a) for both OTFTs were measured in saturation and linear regions of the drain-source current. We found that the E_a of the F₁₆CuPc-based OTFTs was lower than that of H₁₆CuPc-based ones. The gate voltage (V_g) dependence of the field-effect mobility measured in linear region for the F₁₆CuPc-based OTFTs was more stable, i.e., weaker variation of the field-effect mobility with increasing V_g, than that of the H₁₆CuPc-based ones. The high electron affinity of the hexadecafluorine (F₁₆) in CuPc contributed to the effective electron accumulation in the active channel.

Original language	English
Pages (from-to)	553-555
Number of pages	3
Journal	Synthetic Metals
Volume	158
Issue number	13
DOIs	https://doi.org/10.1016/j.synthmet.2008.03.028
Publication status	Published - 2008 Aug

Bibliographical note

Funding Information:
This work was supported by the Korea Science and Engineering Foundation (KOSEF) granted funded by the Korea Government (MOST) (No. R0A-2007-000-20053-0) and Korea Research Foundation (KRF-J03602).

Keywords

Copper phthalocyanine
Mobility
Organic thin film transistor
n-Type
p-Type

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Condensed Matter Physics
Mechanics of Materials
Mechanical Engineering
Metals and Alloys
Materials Chemistry

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10.1016/j.synthmet.2008.03.028

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title = "Comparison of electrical characteristics for p-type and n-type organic thin film transistors using copper phthalocyanine",

abstract = "The p-type and n-type organic thin film transistors (OTFTs) were fabricated in the same experimental conditions by using hexadecahydro copper phthalocyanine (H16CuPc) and hexadecafluoro copper phthalocynine (F16CuPc) molecules, respectively. The mobilities of H16CuPc and F16CuPc-based OTFT devices in saturation region were measured to be ∼1.22 × 10-3 cm2/V s and ∼1.04 × 10-3 cm2/V s, respectively. The temperature dependence of the mobility and activation energy (Ea) for both OTFTs were measured in saturation and linear regions of the drain-source current. We found that the Ea of the F16CuPc-based OTFTs was lower than that of H16CuPc-based ones. The gate voltage (Vg) dependence of the field-effect mobility measured in linear region for the F16CuPc-based OTFTs was more stable, i.e., weaker variation of the field-effect mobility with increasing Vg, than that of the H16CuPc-based ones. The high electron affinity of the hexadecafluorine (F16) in CuPc contributed to the effective electron accumulation in the active channel.",

keywords = "Copper phthalocyanine, Mobility, Organic thin film transistor, n-Type, p-Type",

author = "Kihyun Kim and Kwak, {Tae Ho} and Cho, {Mi Yeon} and Lee, {Jin Woo} and Jinsoo Joo",

note = "Funding Information: This work was supported by the Korea Science and Engineering Foundation (KOSEF) granted funded by the Korea Government (MOST) (No. R0A-2007-000-20053-0) and Korea Research Foundation (KRF-J03602).",

year = "2008",

month = aug,

doi = "10.1016/j.synthmet.2008.03.028",

language = "English",

volume = "158",

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journal = "Synthetic Metals",

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AU - Kim, Kihyun

AU - Kwak, Tae Ho

AU - Cho, Mi Yeon

AU - Lee, Jin Woo

AU - Joo, Jinsoo

N1 - Funding Information: This work was supported by the Korea Science and Engineering Foundation (KOSEF) granted funded by the Korea Government (MOST) (No. R0A-2007-000-20053-0) and Korea Research Foundation (KRF-J03602).

PY - 2008/8

Y1 - 2008/8

N2 - The p-type and n-type organic thin film transistors (OTFTs) were fabricated in the same experimental conditions by using hexadecahydro copper phthalocyanine (H16CuPc) and hexadecafluoro copper phthalocynine (F16CuPc) molecules, respectively. The mobilities of H16CuPc and F16CuPc-based OTFT devices in saturation region were measured to be ∼1.22 × 10-3 cm2/V s and ∼1.04 × 10-3 cm2/V s, respectively. The temperature dependence of the mobility and activation energy (Ea) for both OTFTs were measured in saturation and linear regions of the drain-source current. We found that the Ea of the F16CuPc-based OTFTs was lower than that of H16CuPc-based ones. The gate voltage (Vg) dependence of the field-effect mobility measured in linear region for the F16CuPc-based OTFTs was more stable, i.e., weaker variation of the field-effect mobility with increasing Vg, than that of the H16CuPc-based ones. The high electron affinity of the hexadecafluorine (F16) in CuPc contributed to the effective electron accumulation in the active channel.

AB - The p-type and n-type organic thin film transistors (OTFTs) were fabricated in the same experimental conditions by using hexadecahydro copper phthalocyanine (H16CuPc) and hexadecafluoro copper phthalocynine (F16CuPc) molecules, respectively. The mobilities of H16CuPc and F16CuPc-based OTFT devices in saturation region were measured to be ∼1.22 × 10-3 cm2/V s and ∼1.04 × 10-3 cm2/V s, respectively. The temperature dependence of the mobility and activation energy (Ea) for both OTFTs were measured in saturation and linear regions of the drain-source current. We found that the Ea of the F16CuPc-based OTFTs was lower than that of H16CuPc-based ones. The gate voltage (Vg) dependence of the field-effect mobility measured in linear region for the F16CuPc-based OTFTs was more stable, i.e., weaker variation of the field-effect mobility with increasing Vg, than that of the H16CuPc-based ones. The high electron affinity of the hexadecafluorine (F16) in CuPc contributed to the effective electron accumulation in the active channel.

KW - Copper phthalocyanine

KW - Mobility

KW - Organic thin film transistor

KW - n-Type

KW - p-Type

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ER -

Comparison of electrical characteristics for p-type and n-type organic thin film transistors using copper phthalocyanine

Abstract

Bibliographical note

Keywords

ASJC Scopus subject areas

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