| 研究生: |
周冠羽 K-Y Chou |
|---|---|
| 論文名稱: |
砷化銦鎵的電性研究與平面型PIN光偵測器的製作 Electrical properties of InGaAs and the fabrication of AlInGaAs/InGaAs/InP laterial PIN photodetectors |
| 指導教授: |
紀國鐘
Gou-Chung Chi |
| 口試委員: | |
| 學位類別: |
碩士 Master |
| 系所名稱: |
理學院 - 光電科學與工程學系 Department of Optics and Photonics |
| 畢業學年度: | 88 |
| 語文別: | 中文 |
| 論文頁數: | 83 |
| 中文關鍵詞: | 離子佈植 、閉管擴散 、砷化銦鎵 、平面型光偵測器 |
| 相關次數: | 點閱:7 下載:0 |
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材料的特性方面,經過X-ray繞射(XRD),光激光譜(PL),及霍爾測試(Hall measurement)等量測獲得磊晶層之電特性與光特性如下:在300K時,晶格不匹配(Lattice mismatch)為332.4ppm,能隙為0.751eV,載子型別為n型,載子濃度為2 1015 /cm3,載子遷移率為3400cm2/v s。
在材料電性的研究方面。對於以離子佈植法摻雜Si+活化形成n+型半導體方面,我們已有不錯的實驗成果,將載子濃度由2 1015 /cm3提高到1 1018 /cm3以上。在摻雜Zn+轉變電性形成p+型半導體的方面,由Hall量測的結果,我們的實驗結果顯示,在面摻雜量為1 1014/cm2以上,以及8000C以上的活化溫度,比較容易成功將雜質活化。
在平面型PIN光偵測器的製作上,我們初步的嘗試也得到令人期待的結果。在逆偏壓10伏特時的暗電流,以擴散方式製作的元件有較小的暗電流,暗電流密度為1.12 10-3(A/cm2);而以離子佈植方式所製作的元件有較大的暗電流,暗電流密度為4.2 10-2(A/cm2)。而元件漏電流大小也與元件面積成正相關。
參考文獻
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