ASIA unversity:Item 310904400/11926
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    Please use this identifier to cite or link to this item: http://asiair.asia.edu.tw/ir/handle/310904400/11926


    Title: 以溶膠凝膠法製備非晶IZO:Hf應用於薄膜電晶體之研究
    Authors: 吳杰品
    Contributors: 陳兆南;黃俊杰
    亞洲大學光電與通訊學系碩士班
    Keywords: 溶膠凝膠法;非晶氧化物薄膜電晶體
    Date: 2012
    Issue Date: 2012-11-14 11:25:13 (UTC+0)
    Abstract: 本研究嘗試以溶膠凝膠法製備非晶IZO:Hf薄膜,嘗試以不同的摻雜濃度比例,以退火熱處理溫度500 ℃ 1小時,並應用於薄膜電晶體之主動層上。由XRD判定薄膜在500 ℃退火熱處理下,仍然保持非晶的狀態,薄膜在可見光(400~800 nm) 之光穿透率皆有85 %以上,摻雜濃度在Hf = 5 %、10 %時薄膜皆為連續而平整,薄膜厚度約在20 nm左右;粗糙度方面摻雜濃度提高薄膜之粗糙度相對提高,在濃度Hf = 5 %時有一最佳粗糙0.528 nm。 本研究成功將非晶IZO:Hf 薄膜應用於薄膜電晶體之主動層中,利用3種不同濃度的摻雜,改善氧化銦鋅(IZO)之元件特性。摻雜濃度Hf = 5 %時起始電壓(Vth)為-9.2 V、開關電流比(Ion /Ioff)約為105、次臨界擺幅為 1.4 V/dec、載子遷移率則為0.51 cm2/Vs。而摻雜濃度Hf = 10 %時起始電壓(Vth)為1.1 V、開關電流比(Ion /Ioff)約為105、次臨界擺幅為0.7V/dec、載子遷移率則為0.42 cm2/Vs。當摻雜濃度提高至Hf =30 %時起始電壓(Vth)為1.3 V、開關電流比(Ion /Ioff)約為104、次臨界擺幅為 3 V/dec、載子遷移率則為0.12 cm2/Vs。
    Appears in Collections:[Department of Photonics and Communication Engineering] Theses & dissertations

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