کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
5403641 | 1392763 | 2007 | 9 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
The analysis of thermoluminescent glow peaks of copper doped ZnS thin films after β-irradiation
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
شیمی
شیمی تئوریک و عملی
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![عکس صفحه اول مقاله: The analysis of thermoluminescent glow peaks of copper doped ZnS thin films after β-irradiation The analysis of thermoluminescent glow peaks of copper doped ZnS thin films after β-irradiation](/preview/png/5403641.png)
چکیده انگلیسی
In the given study, the thermoluminescence (TL) properties of copper (Cu)-doped ZnS thin films were investigated after β-irradiation at room temperature (RT). It was observed that the glow curve of this material has two broad TL peaks, in which one of them was centered at about 110 °C and the other at about 170 °C for a heating rate of 1 °C sâ1 in the temperature range from RT to 350 °C. The additive dose (AD), Tm(Ea)âTstop, repeated initial rise (RIR), variable heating rate (VHR) and computerized glow curve deconvolution (CGCD) methods were used to analyze its glow curves. These methods indicated that the glow curve of this material is the superposition of a number of first- and general-order glow peaks, or at least due to the distribution of traps. The dose responses and fading process of both peaks were also examined, and it was observed that the dose responses of both peaks have similar pattern. First they follow a good linearity with different slopes and then saturate at approximately same dose level (2 kGy). The low-temperature broad peak nearly disappeared after 1 week storage in the dark at RT. On the other hand, the intensity of the high-temperature broad peak was approximately reduced to 50% of its original value. The TL emission spectrum of this material has two main emission bands, namely, the blue and green bands. The first glow peak emits predominantly in blue region, whereas the second glow peak in the green region.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Luminescence - Volume 124, Issue 1, May 2007, Pages 58-66
Journal: Journal of Luminescence - Volume 124, Issue 1, May 2007, Pages 58-66
نویسندگان
A.Necmeddin Yazici, Mustafa ÃztaÅ, V.Emir Kafadar, Metin Bedir, Hüseyin ToktamıÅ,