کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
7136544 | 1461879 | 2015 | 28 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Highly sensitive fast-response UV photodiode fabricated from rutile TiO2 nanorod array on silicon substrate
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
شیمی
الکتروشیمی
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Highly sensitive fast-response UV photodiode fabricated from rutile TiO2 nanorod array on silicon substrate Highly sensitive fast-response UV photodiode fabricated from rutile TiO2 nanorod array on silicon substrate](/preview/png/7136544.png)
چکیده انگلیسی
An ultraviolet photodiode based on rutile TiO2 nanorods, which were grown on p-type Si substrate seeded with a TiO2 layer, was synthesized by radiofrequency reactive magnetron sputtering. Chemical bath deposition was performed to grow rutile TiO2 nanorods. X-ray diffraction and field emission-scanning electron microscopy were conducted to determine the structural and optical properties of the sample. The synthesized TiO2 nanorods exhibited tetragonal rutile structure. The device showed 3.79Â ÃÂ 102 sensitivity when it was exposed to 325Â nm light (1.6Â mW/cm) at 5Â V bias voltage. In addition, the internal gain of the photosensor was 4.792 and the photoresponse peak was 460Â mA/W. The photocurrent was 6.09Â ÃÂ 10â4Â A. The response and recovery times of the PD were 50.8 and 57.8Â ms, respectively, upon illumination of a pulsed UV light (325Â nm, 1.6Â mW/cm2) at 5Â V bias voltage.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Sensors and Actuators A: Physical - Volume 221, 1 January 2015, Pages 15-21
Journal: Sensors and Actuators A: Physical - Volume 221, 1 January 2015, Pages 15-21
نویسندگان
Abbas M. Selman, Z. Hassan,