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Pentacene thin film transistor with low threshold voltage and high mobility by inserting a thin metal phthalocyanines interlayer

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Science China(Technological Sciences) 2012年第2期55卷 417-420页

作者： LI Yi LIU Qi WANG XiZhang sekitani tsuyoshi SOMEYA Takao HU Zheng Key Laboratory of Mesoscopic Chemistry of MOE School of Chemistry and Chemical EngineeringNanjing UniversityNanjing 210093China Department of Applied Physics Tokyo University7-3-1 HongoBunkyo-kuTokyo 113-8656Japan

We herein report the effective performance enhancement of the pentacene-based organic thin film transistors with silicon di- oxide dielectric by inserting a thin metal phthalocyanines interlayer between Au source/drain electrodes and the pentacene active layer. The threshold voltage decreased remarkably from ca. -20 V to a few volts （below -7.6 V） while the mobility in- creased 1.5-3 times after the insertion of the interlayer of only ca. 2 nm, which could be attributed to the reduction of the car- tier injection barrier. The results suggest a simple and effective way to achieve low-threshold-voltage pentacene-based organic thin film transistors with high mobility on silicon dioxide dielectric.

关键词： low threshold voltage and high mobility pentacene-based organic thin film transistors metal phthalocyanines interlayer

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Facile fabrication of stretchable Ag nanowire/polyurethane electrodes using high intensity pulsed light

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Nano Research 2016年第2期9卷 401-414页

作者： Yang Yang1 Su Ding Teppei Araki Jinting Jiu Tohru Sugahara Jun Wang Jan Vanfleteren tsuyoshi sekitani Katsuaki Suganuma Center for Microsystems Technology IMEC and Ghent University 9052 Gent-Zwijnaarde Belgium The Institute of Scientific and Industrial Research Osaka University Ibaraki Osaka 567-0047 Japan State Key Laboratory of Advanced Welding and Joining Harbin Institute of Technology Harbin 150001 China

Silver nanowires （AgNWs） have emerged as a promising nanomaterial for next generation stretchable electronics. However, until now, the fabrication of AgNW- based components has been hampered by complex and time-consuming steps. Here, we introduce a facile, fast, and one-step methodology for the fabrication of highly conductive and stretchable AgNW/polyurethane （PU） composite electrodes based on a high-intensity pulsed light （HIPL） technique. HIPL simultaneously improved wire-wire junction conductivity and wire-substrate adhesion at room temperature and in air within 50 μs, omitting the complex transfer-curing-implanting process. Owing to the localized deformation of PU at interfaces with AgNWs, embedding of the nanowires was rapidly carried out without substantial substrate damage. The resulting electrode retained a low sheet resistance （high electrical conductivity） of 〈10 Ω/sq even under 100% strain, or after 1,000 continuous stretching-relaxation cycles, with a peak strain of 60%. The fabricated electrode has found immediate application as a sensor for motion detection. Furthermore, based on our electrode, a light emitting diode （LED） driven by integrated stretchable AgNW conductors has been fabricated. In conclusion, our present fabrication approach is fast, simple, scalable, and cost- efficient, making it a good candidate for a future roll-to-roll process.

关键词： silver nanowires stretchable electrode photonic sintering nanofabrication

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