本文選題：納米金剛石涂層 + 后處理工藝��； 參考：《發(fā)光學(xué)報》2017年06期

【摘要】：采用膠帶粘貼、金相砂紙摩擦、射頻氫等離子體工藝對鈦基納米金剛石涂層進(jìn)行了處理,分析了它們對樣品的微觀表征、場發(fā)射性能、發(fā)光效果的影響。首先通過電泳法將金剛石粉末移植到金屬鈦片上,然后經(jīng)過真空熱處理、表面后處理工藝形成了場發(fā)射陰極涂層,最后對樣品進(jìn)行了微觀表征、場發(fā)射特性與發(fā)光測試。結(jié)果表明,膠帶處理在場強(qiáng)達(dá)到10 V/μm時,場發(fā)射電流密度從50μA/cm~2增j加到72μA/cm~2;金相砂紙?zhí)幚碓?0 V/μm場強(qiáng)下的場發(fā)射電流由48μA/cm~2提高到82μA/cm~2;適當(dāng)?shù)臍涞入x子體處理有助于降低表面功函數(shù),使得金剛石表面的懸鍵被氫原子飽和,在其表面形成C—H鍵,進(jìn)一步降低了電子親和勢,從而提高了樣品的場發(fā)射性能和發(fā)光均勻性。
[Abstract]:Titanium based nanocrystalline diamond coatings were treated by adhesive tape, friction of metallographic sandpaper and radio frequency hydrogen plasma. The effects of these coatings on the microstructure, field emission properties and luminescence of the samples were analyzed. Firstly, diamond powder was implanted onto titanium metal by electrophoretic method, then the surface was treated by vacuum heat treatment, the field emission cathodic coating was formed. Finally, the microcosmic characterization, field emission characteristics and luminescence test of the samples were carried out. The results show that the field emission current density increases from 50 渭 A/cm~2 to 72 渭 A / cm ~ (-2), the field emission current increases from 48 渭 A/cm~2 to 82 渭 A / cm ~ (2) at 10 V / 渭 m field strength, and the surface work function is reduced by proper hydrogen plasma treatment. The suspended bond on diamond surface is saturated by hydrogen atom and forms C-H bond on its surface, which further reduces the electron affinity and improves the field emission property and luminescence uniformity of the sample.
【作者單位】： 延安大學(xué)信息與通信工程研究所;
【基金】：國家自然科學(xué)基金(61664008) 延安大學(xué)引導(dǎo)項目(YD 2016-02) 2016地方高校國家大學(xué)生創(chuàng)新創(chuàng)業(yè)訓(xùn)練項目(1559,1569) 高水平大學(xué)學(xué)科建設(shè)專項研究基金(2015SXTS02) 2016延安大學(xué)校級大學(xué)生創(chuàng)新訓(xùn)練項目(D2016109) 2017年延安大學(xué)研究生創(chuàng)新訓(xùn)練項目(YCX201740)資助~~
【分類號】：TN141;TN304

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