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2010•Journal of Optoelectronics·laserRequires access

Property of TIPS-pentacene transistor based on polymer dielectric

Jing Wang

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Abstract

A kind of organic field-effect transistor(OFET) is fabricated with poly-(methylmethacrylate)(PMMA) as the gate insulator and 6,13-bis(triisopropyl-silylethynyl) pentacene(TIPS-pentacene) as the active layer.The PMMA dielectric is fabricated by solution-casting method.Moreover,the gold(Au) is employed as the source and drain electrodes.The characteristics of TIPS-pentacene thin film upon polymer insulator are carefully studied by Atomic force microscopy (AFM) and X-ray diffraction(XRD) techniques.The device shows a good electronic performance with the field-effect mobility of 0.137 cm2/Vs,threshold voltage of-19 V and on/off ratio of 9.74×104.Furthermore,the stability of OFET is also investigated.

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What this paper is about

A kind of organic field-effect transistor(OFET) is fabricated with poly-(methylmethacrylate)(PMMA) as the gate insulator and 6,13-bis(triisopropyl-silylethynyl) pentacene(TIPS-pentacene) as the active layer.The PMMA dielectric is fabricated by solution-casting method.Moreover,the gold(Au) is employed as the source and drain electrodes.The characteristics of TIPS-pentacene thin film upon polymer insulator are carefully studied by Atomic force microscopy (AFM) and X-ray diffraction(XRD) techniques.The device shows a good electronic performance with the field-effect mobility of 0.137 cm2/Vs,threshold voltage of-19 V and on/off ratio of 9.74×104.Furthermore,the stability of OFET is also investigated.

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Available abstract

A kind of organic field-effect transistor(OFET) is fabricated with poly-(methylmethacrylate)(PMMA) as the gate insulator and 6,13-bis(triisopropyl-silylethynyl) pentacene(TIPS-pentacene) as the active layer.The PMMA dielectric is fabricated by solution-casting method.Moreover,the gold(Au) is employed as the source and drain electrodes.The characteristics of TIPS-pentacene thin film upon polymer insulator are carefully studied by Atomic force microscopy (AFM) and X-ray diffraction(XRD) techniques.The device shows a good electronic performance with the field-effect mobility of 0.137 cm2/Vs,threshold voltage of-19 V and on/off ratio of 9.74×104.Furthermore,the stability of OFET is also investigated.

Key concepts: Pentacene, Organic field-effect transistor, Materials science, Transistor, Dielectric, Optoelectronics, Thin-film transistor, Polymer

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