文化大學機構典藏 CCUR:Item 987654321/23146
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    Please use this identifier to cite or link to this item: https://irlib.pccu.edu.tw/handle/987654321/23146


    Title: 奈米金屬粒子修飾高分子聚合物於可撓式化學感測器的應用
    Authors: 許淳棋
    Contributors: 化學系
    Keywords: 可撓式
    Flexible sensors
    氫氣
    hydrogen
    濕度
    humidity
    聚吡咯
    polypyrrole
    聚乙二胺樹枝狀高分子
    polyamidoamone dendrimer
    鉑奈米粒子
    Pt nanoparticles
    Date: 2012
    Issue Date: 2012-10-11 10:45:32 (UTC+8)
    Abstract: 本研究使用鉑奈米粒子修飾過的聚吡咯導電高分子(Ppy-Pt)與乙二胺樹枝狀高分子複合金奈米粒子(G1-NH2-AuNPs)這兩樣材料,分別以層接式自組裝法(Layer-by-layer self-assemble)和液滴塗覆法(Drop-coating)接著於聚酯(PET)塑膠基板上製備可撓式氣體感測元件與可撓式濕度感測元件。並利用原子力顯微鏡(AFM)、掃描式電子顯微鏡(SEM)分析Ppy-Pt以及G1-NH2-AuNPs可撓式奈米複合薄膜的表面結構。
    實驗第一部份為Ppy-Pt的製備,並探討其對氫氣的感測特性、可撓性與長期穩定度;第二部份為G1-NH2-AuNPs的製備,並探討其對濕度的感測特性、可撓性與長期穩定性,並透過複合阻抗圖譜來解釋其感測機制。
    利用層接式自組裝法製備的Ppy-Pt的氣體感測元件對於氫氣有良好的感度、反應快速、長期穩定性佳,可撓性高等優點;以液滴塗覆法製備的G1-NH2-AuNPs的濕度感測元件有感濕範圍廣泛、低濕滯現象、反應快速、可撓性高、長期穩定性佳、製備簡單等優點。

    In this study, polypyrrole modified with Pt nanoparticles (Ppy-Pt) and generation 1 polyamidoamone dendrimer-Au nanoparticles (G1-NH2-AuNPs) were used to fabricate flexible gas sensor and flexible humidity sensors by Layer-by-layer self-assemble and drop-coating on plastic substrate, respectively. Then using atomic force microscopy (AFM) and scanning electron microscopy (SEM) to analysis the surface structure of Ppy-Pt and G1-NH2-AuNPs flexible nanocomposite film.
    The novel flexible H2 gas sensor was successfully fabricated by the layer-by-layer in situ self-assembly of a Pt-PPy thin film on a modified PET substrate. It had high sensitivity, fast response and recovery time, and long-term stability.
    The flexible impedance-type humidity sensor that was based on G1-NH2-AuNPs film had a wide working range of humidity, a small hysteresis, a fast response time, high flexibility, and good long-term stability.
    Appears in Collections:[Department of Chemistry & Graduate Institute of Applied Chemistry ] thesis

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