کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1810843 | 1025573 | 2012 | 12 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Experimental and theoretical investigation of the pyroelectric effect of the p-n junction in a paraelectric non-polar semiconductor
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موضوعات مرتبط
مهندسی و علوم پایه
فیزیک و نجوم
فیزیک ماده چگال
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
We describe here the first comprehensive investigation of a pyroelectric response of a p-n junction in a non-polar paraelectric semiconductor. The pyroelectric effect is generated by the, temperature dependent, built-in electrical dipole moment. High quality PbTe p-n junctions have been prepared specifically for this experiment. The pyroelectric effect was excited by a continuous CO2 laser beam, modulated by a mechanical chopper. The shape and amplitude of the periodic and single-pulse pyroelectric signals were studied as a function of temperature (10-130 K), reverse bias voltage (up to â500 mV) and chopping frequency (4-2000 Hz). The pyroelectric coefficient is â10â3 μC/cm2K in the temperature region 40-80 K. The developed theoretical model quantitatively describes all the experimental features of the observed pyroelectric effect. The time evolution of the temperature within the p-n junction was reconstructed.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Physica B: Condensed Matter - Volume 407, Issue 3, 1 February 2012, Pages 439-450
Journal: Physica B: Condensed Matter - Volume 407, Issue 3, 1 February 2012, Pages 439-450
نویسندگان
A.V. Butenko, V. Sandomirsky, R. Kahatabi, Z. Dashevsky, V. Kasiyan, Z. Zalevsky, Y. Schlesinger,