کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1486319 | 1510556 | 2006 | 5 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Plasma diagnostics in silane-methane-hydrogen plasmas under pm-Si1âxCx:H deposition conditions: Correlation with film properties
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
سرامیک و کامپوزیت
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Plasma diagnostics in silane-methane-hydrogen plasmas under pm-Si1âxCx:H deposition conditions: Correlation with film properties Plasma diagnostics in silane-methane-hydrogen plasmas under pm-Si1âxCx:H deposition conditions: Correlation with film properties](/preview/png/1486319.png)
چکیده انگلیسی
A systematic study has been done on the formation of nanoparticles in silane-methane-hydrogen plasmas and their effect on material properties. By increasing the total pressure we cover three phases of particle growth: nanocrystals nucleation and accumulation, agglomeration, and powder formation. The presence of particles in the plasma is detected from the evolution of the discharge electrical parameters such as the self-bias (VDC) on the radio-frequency electrode and the peak-to-peak RF voltage (VPP). Interestingly, optical emission spectroscopy measurements show that the presence of particles has a strong effect on the hydrogen emission bands. Indeed, while Hα emission is dominant at low pressure in a powder free discharge, the formation of particles leads to an intense H2 Fulcher α band. Moreover the ratio IFulcher/IHα provides a clear signature of the transition from nucleation to agglomeration regimes, thus providing an easy way of characterizing the plasma regime. The changes in the deposition regime are also reflected on the film properties, in particular their photoluminescence characteristics.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Non-Crystalline Solids - Volume 352, Issues 9â20, 15 June 2006, Pages 959-963
Journal: Journal of Non-Crystalline Solids - Volume 352, Issues 9â20, 15 June 2006, Pages 959-963
نویسندگان
V. Suendo, P. Roca i Cabarrocas,