کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
5370013 | 1388470 | 2006 | 5 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Electrochemical luminescence of n-type ZnO semiconductor electrodes doped with rare earth metals under the anodic polarization
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
شیمی
شیمی تئوریک و عملی
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
Electrochemical luminescence (ECL) at n-type ZnO semiconductor electrode was measured under anodic polarization. Scanning the potential imposed on the ZnO electrode, emission was suddenly observed around +20Â V. Using the ZnO electrodes doped with rare earth metal ions as Sm3+, Eu3+, Dy3+, Ho3+ and Er3+, much brighter emission was obtained than the ECL of non-doped ZnO. These emission spectra are ascribed to the rare earth metal ions, respectively. This result would show that emission centers of doped ions were selectively excited by electrons that were injected from electrolyte to the electrode by avalanche breakdown under strong anodic bias on the ZnO.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Applied Surface Science - Volume 253, Issue 4, 15 December 2006, Pages 1753-1757
Journal: Applied Surface Science - Volume 253, Issue 4, 15 December 2006, Pages 1753-1757
نویسندگان
Toshihito Ohtake, Satoshi Hijii, Noriyuki Sonoyama, Tadayoshi Sakata,