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Fluoride ion field emission from a ZBLAC glass emitter
Solid State Ionics ( IF 3.0 ) Pub Date : 2020-07-15 , DOI: 10.1016/j.ssi.2020.115400
Yusuke Daiko , Haruki Yanagida , Sawao Honda , Yuji Iwamoto

F ion conducting 60ZrF4·30BaF2·LaF3·2AlF3·7CsF (mol%) with outer mol% of xIn2O3 (x = 0, 5, 10) glasses were prepared using a conventional melting method, and structure and glass transition behavior were investigated using X-ray diffraction (XRD), differential scanning calorimetry (DSC) and Raman spectroscopy. Impedance measurement reveals the glass with x = 10 shows F ion conductivity of 5 × 10−6 S/cm at 200 °C. F ion emission measurement was carried out for the first time using a sharpened glass tip, and the emission current was observed above the acceleration voltage of 2.5 kV at 200 °C and 1 × 10−4 Pa. After the F emission measurement, fluorine was detected on a Cu target substrate by using an energy-dispersive X-ray spectrometer. However, a small amount of glass component was also detected on the target substrate, suggesting the glass tip may also decompose. A good linear correlation is obtained between log(current) and the square root of the voltage, suggesting the emission current of F ion from the tip of glass is expressed by Schottky model.



中文翻译:

ZBLAC玻璃发射器发出的氟离子场发射

˚F -离子传导60ZrF 4 ·30BaF 2 ·的LaF 3 ·2AlF 3与外摩尔%·7CsF(摩尔%)X2 ø 3X  = 0,5,10)使用常规的熔融法来制备玻璃,和使用X射线衍射(XRD),差示扫描量热法(DSC)和拉曼光谱研究了结构和玻璃化转变行为。阻抗测量揭示了与玻璃X  = 10描绘了f -的5×10离子电导率-6  S / cm的在200℃下。˚F -离子发射测量使用锋利的玻璃尖端进行首次和2.5千伏的加速电压以上,观察到在200℃下发射电流和1×10 -4 帕在F后。-发射测量,氟是通过使用能量色散X射线光谱仪在Cu靶基板上进行检测。但是,在目标基板上也检测到少量的玻璃成分,表明玻璃尖端也可能分解。是log(电流)和电压的平方根之间获得线性相关性良好的,这表明F的发射电流-离子从玻璃的尖端通过肖特基模型表示。

更新日期:2020-07-15
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