کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1484655 | 1510525 | 2008 | 5 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Thermal stability of light-induced defects in hydrogenated amorphous silicon: Effect on defect creation kinetics and role of network microstructure
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کلمات کلیدی
71.23.Cq61.43.Dq - 61.43 دقیقه76.30.−v - 76.30 - vPhotoinduced effects - اثرات عکس دیجیتالInfrared properties - خصوصیات مادون قرمزElectron spin resonance - رزونانس اسپین الکترونChemical vapor deposition - رسوب بخار شیمیایی یا انباشت به روش تبخیر شیمیاییPlasma deposition - رسوب پلاسماsilicon - سیلیسیم defects - عیوبAmorphous semiconductors - نیمه هادی آمورف
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
سرامیک و کامپوزیت
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
The kinetics of light-induced defect creation in a-Si:H is studied in early-time limit and as function of pre-existing defects of different thermal stability by electron spin resonance and optical spectroscopy techniques. Both for cw and for laser pulse exposures, the early-time kinetics follows sublinear tβ time dependences, similar to the long-time limit. In addition, the overall defect creation rate is not a single function of the total defect number. Instead, it depends on the thermal stability, or annealing energy distribution, of the defects present in the film. Furthermore, creation of the thermally less stable defects is unaffected by the presence of a large number of stable defects introduced by pre-exposure at a higher temperature. These findings question the existing defect creation models. Thermal stability of the light-induced defects depends on the network microstructure, the less stable defects being created in a-Si:H deposited near microcrystalline transition.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Non-Crystalline Solids - Volume 354, Issues 19â25, 1 May 2008, Pages 2144-2148
Journal: Journal of Non-Crystalline Solids - Volume 354, Issues 19â25, 1 May 2008, Pages 2144-2148
نویسندگان
P. Stradins, Michio Kondo, Akihisa Matsuda,