需要金幣:1000 個金幣 | 資料包括:完整論文 | ||
轉(zhuǎn)換比率:金額 X 10=金幣數(shù)量, 例100元=1000金幣 | 論文字?jǐn)?shù):13321 | ||
折扣與優(yōu)惠:團購最低可5折優(yōu)惠 - 了解詳情 | 論文格式:Word格式(*.doc) |
摘要:利用新發(fā)展的小入射角沉積(small incident angle deposition, SIAD)技術(shù)在普通玻璃襯底上成功制備了一種銅納米線/銅膜復(fù)合結(jié)構(gòu),并利用臺階儀、金相顯微鏡、SEM、XRD、UV/VIS分光光度計等對復(fù)合結(jié)構(gòu)進行了表征。通過分析我們得出如下結(jié)論:(1)金相顯微鏡和SEM觀察結(jié)果共同表明,在銅納米線/銅膜復(fù)合結(jié)構(gòu)中,一些長直的銅納米線平行鑲嵌于銅膜表面;(2)通過大量的金相顯微照片分析比較,發(fā)現(xiàn)隨著沉積時間的增加,復(fù)合結(jié)構(gòu)中銅納米線的線密度增加;(3)XRD分析結(jié)果表明,復(fù)合結(jié)構(gòu)具有Cu(111)擇優(yōu)取向,而且隨著沉積時間的增加,衍射峰強度增加;(4)紫外-可見透射光譜分析結(jié)果表明,復(fù)合結(jié)構(gòu)在可見光波段出現(xiàn)SPR吸收,而且隨著沉積時間的增加,SPR吸收峰發(fā)生藍(lán)移,SPR峰強減弱,半高寬變寬;(5)通過對形成機理的分析討論,提出了一種新的定向壓應(yīng)力誘導(dǎo)“層-線狀”生長模式。 關(guān)鍵詞:銅納米線/銅膜復(fù)合結(jié)構(gòu);小入射角沉積(SIAD);層-線狀生長模式;表面等離子體共振(SPR)
Abstract: In this paper a new small incident angle deposition (SIAD) method was developed to fabricate Cu nanowires/film composite structures. The as-fabricated composite structures were characterized by using surface profile measuring System, metalloscope, scanning electron microscope (SEM), X-ray diffractometer (XRD) and UV/VIS spectrometer. The detailed work and outstanding contributions are concentrated as in the following: (1) The achieved composite structures were of some straight Cu wires parallel to the substrate and inlaid into the surface of a supporting Cu film. (2) The wire density in composite structures increased in quantity with the increasing of deposition time. (3) The achieved composite structures showed preferential crystallization in Cu(111) texure. With the increase of deposition time, the intensity of diffraction peak enhanced. (4) The achieved composite structures displayed an abnormal surface plasmon resonance (SPR) absorption which decreased and broadened with the increasing of deposition time. (5) With analysis of the formation mechanism, a new growth mode of directed compressive stresses induced layer-plus-wire growth was proposed. Key words:Cu nanowires/film composite structure; small incident angle deposition (SIAD); lay-plus-wire growth mode; surface plasmon resonance (SPR). |