0% Complete
صفحه اصلی
/
سی و سومین کنفرانس بین المللی مهندسی برق
Fabrication and performance analysis of a ZnO phototransistor for UV detection
نویسندگان :
Ghasem Yousefi Simakani
1
ُSamaneh Hamedi
2
1- دانشگاه صنعتی شیراز
2- دانشگاه صنعتی شیراز
کلمات کلیدی :
ZnO Phototransistor،Time response of phototransistor،Persistent photoconductivity،Phototransistor responsivity،Mobility
چکیده :
In this paper we present the fabrication and characterization of a ZnO phototransistor on a p-type silicon substrate with a few simple low-cost steps including cleaning and 2 sputtering steps on a pre-oxidized silicon. The p-type silicon served as the back gate, and the 300nm SiO₂ layer on the silicon was used as gate insulator. A ZnO layer as phototransistor channel was sputtered and finally, two 150nm aluminum electrode have been sputtered on the channel as drain and source electrodes. The transistor exhibited I-V characteristics over a gate voltage range of 0 to 28V, with a maximum drain-source voltage of 40V. We also measured the phototransistor's UV light responsivity, mobility, rise time, and fall time under UV illumination. A photoresponsivity of 33A/W was observed at an input optical power of 315µW/cm2 for a wavelength of 405nm, while the mobility ranged from 104 cm²/V·s to 630 cm²/V·s across the gate voltage range (0 to 28 V) with a drain-source voltage of 12V. A rise time of approximately 10s and a fall time of around 45s were recorded, demonstrating persistent photoconductivity (PPC) under UV exposure in the time-domain response. The results aligned with the expected behavior of ZnO-based photodetectors.
لیست مقالات
لیست مقالات بایگانی شده
On the Interaction Between Meteorological Conditions and Performance Optimization in MISO Free-Space Optical Communication
Meysam Ghanbari - Mahdis Saghaee Jahed - Seyed Mohammad Sajad Sadough
Dual-Branch Cross-Parallel Transformer Model for Single-Channel Speech Enhancement
Mohammad Hakimkhah - Rahil Mahdian Toroghi - Hassan Zareian
Scaled CR-(RC)n Digital Filter Design for Precision Pulse Processing in Spectroscopy Applications
MohammadReza Fazli - Nasser Masoumi - Hamid Rahimpour
Dynamic Gait Analysis Using Hybrid Neural Networks: Online classification and Prediction of Locomotion Modes
Samira Dehghanian - Hamed Jalaly Bidgoly
Accurate Methods for Automatic Detection of Characteristic Points in Electrocardiograms
Seyedeh Mersedeh Bagheri - Mohammad Pooyan
Bit Error Mitigation Using Unequal Resistivity Levels in Memristors
Amir Mohammad Hajisadeghi - Peiman Pourmomen - Hamid Reza Zarandi
Crypto Currency Price Prediction Using Preprocessed Scaled Inputs LSTM Model Enhanced by Improved Gray Wolf Optimization
Amir RabbaniParsa - Mahboobeh Hoshmand - Seyyed Abed Hosseini
Helmet Microwave Array Applicator for Deep-Seated Brain Tumor Hyperthermia
Mohammad Moeini Arani - Mohammad Javad Hajiahmadi - Reza Faraji-Dana
A Decentralized Nonlinear Control Strategy for a Robust Voltage Regulation in Islanded DC Microgrids with ZIP Loads
Somayeh Bahrami
High Performance and Low Power Spintronic Binarized Neural Network Hardware Accelerator
Milad Tanavardi Nasab - Arefe Amirany - Mohammad Hossein Moaiyeri - Kian Jafari
ثمین همایش، سامانه مدیریت کنفرانس ها و جشنواره ها - نگارش 40.4.2