کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
9789703 | 1512914 | 2005 | 7 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Laser-induced photocurrent measurement in quasi-arrayed ZnS quantum dots
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
مواد الکترونیکی، نوری و مغناطیسی
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چکیده انگلیسی
Electron transfer from confined structures like quantum film, quantum wire or quantum dot has been studied in conjunction with photoexcitation. The present paper highlights photocurrent generation in the external circuit due to electron transport within the organized ZnS quantum dots by means of tunnelling through the thin dielectric matrix. The average size distribution of the particles was determined by X-ray diffraction (XRD) in consistency with high-resolution electron microscopy (TEM). We demonstrate measurable and sustainable photocurrent in the external circuit as a result of quantum charge transport within arrayed quantum dots excited by high-power photons. The nonlinearity nature of I-V response is marked by Coulomb blockade signature, which serves as a prerequisite for single electron device applications.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Physica E: Low-dimensional Systems and Nanostructures - Volume 27, Issues 1â2, March 2005, Pages 176-182
Journal: Physica E: Low-dimensional Systems and Nanostructures - Volume 27, Issues 1â2, March 2005, Pages 176-182
نویسندگان
D. Mohanta, A. Choudhury,