کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
5360871 | 1388266 | 2009 | 5 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Influence of alkali metallization (Li, Na and K) on photoluminescence properties of porous silicon
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
شیمی
شیمی تئوریک و عملی
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Influence of alkali metallization (Li, Na and K) on photoluminescence properties of porous silicon Influence of alkali metallization (Li, Na and K) on photoluminescence properties of porous silicon](/preview/png/5360871.png)
چکیده انگلیسی
We present results for alkali metallization effects on photoluminescence (PL) properties of porous silicon (PS). The metallization of PS was realized by immersion plating in solutions containing 3Â mM LiNO3, KNO3 and NaNO3 metal salts. The surface bond configuration of PS was monitored by Fourier transmission infrared spectroscopy (FTIR) and it was found that the PS surface was oxidized after metallization. Surface properties of PS were investigated by field emission scanning electron microscopy (FE-SEM) and it was found that the PS surface was covered by alkali metals for short immersion times. The PL intensity increased for critical immersion times and PL spectrum shifted to high energy region with the metallization. The experimental results suggest a possibility that the metallization provides a relatively easy way to achieve an increase in the PL intensity and oxidation of the PS surface.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Applied Surface Science - Volume 256, Issue 5, 15 December 2009, Pages 1548-1552
Journal: Applied Surface Science - Volume 256, Issue 5, 15 December 2009, Pages 1548-1552
نویسندگان
Kadir Esmer, Ersin Kayahan,