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  • 學位論文

利用超音波噴霧法製作具有超薄氧化物中間層之ZnO/Si光偵測二極體及其磁光特性之研究

Magneto-Optical Properties of ZnO/SiO2/Si structure Photodiodes Prepared by Ultrasonic Spray Pyrolysis

指導教授 : 陳隆建

摘要


為了增強光偵測器在紫外/藍光區域間的響應度,本研究使用p-ZnO/SiO2/n-Si之異質結構的感光二極體,使用超音波噴霧熱解法以氮-銦共同摻雜出p-type之氧化鋅薄膜,將它沉積在(100)方向之矽基板。在外加強磁場時,光電流會提高一個級數的大小,發生此現象最主要是因為磁場會誘發光電流的產生,而這也就是證明了外加磁場能提高光偵測二極體的光電留。光響應度在吸收邊緣具有一9.03meV的藍位移,波長由370nm偏移至371nm,而藍位移的發生主要來自於Laudau分裂的產生。

並列摘要


We present a photodiodes with a p-ZnO/oxide/n-Si structure in a magnetic field. The N-In codoped p-type ZnO films were deposited by ultrasonic spray pyrolysis on a (111)-oriented silicon substrate with an ultrathin oxide layer. When the p-ZnO/oxide/n-Si structure photodiode was placed in a strong magnetic field, the total current under illumination was enhanced about one order. This may results mainly by the magnetic field-induced photocurrent. An absorption tail of the responcivity shift from 371 to 370 nm, and a blue shift about 9.03 meV was observed. This shift is attributed to the Landau splitting.

參考文獻


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