PERFORMANCE ANALYSIS OF PD/ZNO BASED FLEXIBLE UV MSM PHOTODETECTORS

Flexible electronics and optoelectronics devices attract further attention in recent years. In this paper, we present the fabrication and photodetection properties of a flexible metal-semiconductor-metal UV photodetector based on a thin ZnO film with Pd Schottky electrodes. The active ZnO layer was...

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Main Authors: Mowj R. Sabity, Ghusoon M. Ali
Format: Article
Language:Arabic
Published: Mustansiriyah University/College of Engineering 2022-09-01
Series:Journal of Engineering and Sustainable Development
Subjects:
Online Access:https://jeasd.uomustansiriyah.edu.iq/index.php/jeasd/article/view/1883
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author Mowj R. Sabity
Ghusoon M. Ali
author_facet Mowj R. Sabity
Ghusoon M. Ali
author_sort Mowj R. Sabity
collection DOAJ
description Flexible electronics and optoelectronics devices attract further attention in recent years. In this paper, we present the fabrication and photodetection properties of a flexible metal-semiconductor-metal UV photodetector based on a thin ZnO film with Pd Schottky electrodes. The active ZnO layer was created using a hydrothermal method on ITO/PET flexible substrates. Palladium employed as back-to-back Schottky contacts. Metal masks are designed and used to deposit palladium via thermal evaporation. To demonstrate the impact of ZnO on flexible substrates, the structural, optical, and electrical characteristics of the produced films were examined and assessed. I-V characteristics under dark and illumination conditions for a device were measured using a voltage range of -2.8 V to 2.8 V. The measured data were used to calculate device parameters and photodetection properties. Such as ideality factor, barrier height, saturation current, detectivity, responsivity, contrast-ratio, and efficiency. The proposed device exhibited a gain (efficiency of 200%} caused by trapping hole carrier at the ZnO-Pd interface.
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spelling doaj.art-d775df5fd9dc43ceb0b2d27bd798057f2023-09-15T22:00:45ZaraMustansiriyah University/College of EngineeringJournal of Engineering and Sustainable Development2520-09172520-09252022-09-01265PERFORMANCE ANALYSIS OF PD/ZNO BASED FLEXIBLE UV MSM PHOTODETECTORS Mowj R. Sabity0Ghusoon M. Ali1Electrical Engineering Department, Mustansiriyah University, Baghdad, IraqElectrical Engineering Department, Mustansiriyah University, Baghdad, Iraq Flexible electronics and optoelectronics devices attract further attention in recent years. In this paper, we present the fabrication and photodetection properties of a flexible metal-semiconductor-metal UV photodetector based on a thin ZnO film with Pd Schottky electrodes. The active ZnO layer was created using a hydrothermal method on ITO/PET flexible substrates. Palladium employed as back-to-back Schottky contacts. Metal masks are designed and used to deposit palladium via thermal evaporation. To demonstrate the impact of ZnO on flexible substrates, the structural, optical, and electrical characteristics of the produced films were examined and assessed. I-V characteristics under dark and illumination conditions for a device were measured using a voltage range of -2.8 V to 2.8 V. The measured data were used to calculate device parameters and photodetection properties. Such as ideality factor, barrier height, saturation current, detectivity, responsivity, contrast-ratio, and efficiency. The proposed device exhibited a gain (efficiency of 200%} caused by trapping hole carrier at the ZnO-Pd interface. https://jeasd.uomustansiriyah.edu.iq/index.php/jeasd/article/view/1883ZnOflexible substratePalladiumhydrothermal method
spellingShingle Mowj R. Sabity
Ghusoon M. Ali
PERFORMANCE ANALYSIS OF PD/ZNO BASED FLEXIBLE UV MSM PHOTODETECTORS
Journal of Engineering and Sustainable Development
ZnO
flexible substrate
Palladium
hydrothermal method
title PERFORMANCE ANALYSIS OF PD/ZNO BASED FLEXIBLE UV MSM PHOTODETECTORS
title_full PERFORMANCE ANALYSIS OF PD/ZNO BASED FLEXIBLE UV MSM PHOTODETECTORS
title_fullStr PERFORMANCE ANALYSIS OF PD/ZNO BASED FLEXIBLE UV MSM PHOTODETECTORS
title_full_unstemmed PERFORMANCE ANALYSIS OF PD/ZNO BASED FLEXIBLE UV MSM PHOTODETECTORS
title_short PERFORMANCE ANALYSIS OF PD/ZNO BASED FLEXIBLE UV MSM PHOTODETECTORS
title_sort performance analysis of pd zno based flexible uv msm photodetectors
topic ZnO
flexible substrate
Palladium
hydrothermal method
url https://jeasd.uomustansiriyah.edu.iq/index.php/jeasd/article/view/1883
work_keys_str_mv AT mowjrsabity performanceanalysisofpdznobasedflexibleuvmsmphotodetectors
AT ghusoonmali performanceanalysisofpdznobasedflexibleuvmsmphotodetectors