کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
7222846 | 1470555 | 2018 | 8 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Hydrothermally synthesized zinc oxide nanoparticle based photodetector for blue spectrum detection
ترجمه فارسی عنوان
فتو تیتان بر پایه نانوذرات روی هیدروترمالی سنتز شده برای تشخیص طیف آبی
دانلود مقاله + سفارش ترجمه
دانلود مقاله ISI انگلیسی
رایگان برای ایرانیان
کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
سایر رشته های مهندسی
مهندسی (عمومی)
چکیده انگلیسی
A photodetector, based on zinc oxide nanoparticles (ZnO-NPs) is designed and fabricated using the drop casting method. Two glass slides coated with Indium tin oxide (ITO) thin films approximately 2.5â¯Î¼m thick are used as source and drain electrodes, together with Schottky contacts fabricated with ZnO-NPs for the efficient transfer of photo-generated charge carriers. The proposed photodetectors showed significant sensitivity under white light emitting diode (LED) illumination at 468â¯nm, which is near the blue light spectrum. The current-voltage (I-V) characteristics of the proposed photodetectors indicate the generation of electron-hole pairs under white LED illumination at 265â¯Î¼W, and stable photocurrent is achieved at high direct current (DC) bias voltages. Photodector response and recovery times of approximately 66.52 and 134.36 μs respectively are obtained at LED frequency modulation of 100â¯Hz at a bias voltage of 5â¯V. This represents an enhancement of the capabilities of ZnO-NPs, which is typically used for detection in the UV region only.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Optik - Volume 172, November 2018, Pages 35-42
Journal: Optik - Volume 172, November 2018, Pages 35-42
نویسندگان
H. Ahmad, M. Tajdidzadeh, K. Thambiratnam, M. Yasin,