High-performance n-channel organic thin-film transistors based on the dual effects of heterojunction and surface modification

This paper presents two n-channel organic heterojunction transistors with modified insulator by using hexadecafiuorophthalocyaninatocopper （F16CuPc）/copper phthalocyanine （CuPc） and F16CuPc/pentacene as the active layers. Compared with a single-layer device, it reports that an improved field-effect...

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Bibliographic Details
Published inChinese physics B Vol. 19; no. 3; pp. 456 - 461
Main Author 曹进 洪飞 邢菲菲 顾文 郭新安 张浩 魏斌 张建华 王军
Format Journal Article
LanguageEnglish
Published IOP Publishing 01.03.2010
Subjects
COPPER PHTHALOCYANINE
CuPc
DRAINS
ELECTRONIC PRODUCTS
Heterojunction devices
Heterojunctions
Insulators
INTERFACES
N通道
ORGANIC COMPOUNDS
Pentacene
Semiconductor devices
Surface chemistry
THIN FILMS
TRANSISTORS
异质结器件
异质结晶体管
有机薄膜
表面改性
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Summary:This paper presents two n-channel organic heterojunction transistors with modified insulator by using hexadecafiuorophthalocyaninatocopper （F16CuPc）/copper phthalocyanine （CuPc） and F16CuPc/pentacene as the active layers. Compared with a single-layer device, it reports that an improved field-effect mobility and a 6-fold higher drain current are observed. The highest mobility of 0.081 cm^2/（V. s） was obtained from F16CuPc/CuPc heterojunction devices. This result is attributed to the dual effects of the organic heterojunction and interface modification. Furthermore, for two heterojunction devices, the performance of the F16CuPc/CuPc-based transistor is better than that of F16CuPc/pentacene. This is attributed to the morphologic match of two organic components.
Bibliography:TN322.8
n-channel, heterojunction effect, surface modification
11-5639/O4
TG174.444
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SourceType-Scholarly Journals-1
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ISSN:1674-1056
2058-3834
DOI:10.1088/1674-1056/19/3/037106