Preparation of low cost n-ZnO/MgO/p-Si heterojunction photodetector by laser ablation in liquid and spray pyrolysis

Ismail, Raid A.; Khashan, Khawla S.; Jawad, Muslim F.; Mousa, Ali M.; Mahdi, Farah

doi:10.1088/2053-1591/aac24e

Cited by 45 publications

(10 citation statements)

References 28 publications

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“…The value of EQE of the photodetector prepared with 6.5 J/cm 2 was larger than of that prepared with 8 J/cm 2 . The maximum value of EQE was 74% at 860 nm which is comparable to the silicon based heterojunction photodetector [24][25][26]. The detectivity (D * ) of the photodetector can be defined as the minimum detectable power which considers the most important figures of merit of the photodetectors.…”

Section: Resultsmentioning

confidence: 93%

Preparation of Bi2Sr2CaCu2Ox Thin Film by Pulsed Laser Deposition for Optoelectronic Devices Application

Ismail

Hasan

Shaker

2021

Silicon

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In this study, we have prepared Bi2Sr2CaCu2Ox (BSCCO) nanostructure films by pulsed laser deposition technique (PLD). The structural and optical properties of nanostructured Bi2Sr2CaCu2Ox film were investigated. X-ray diffraction (XRD) studies of the films prepared at 6.5 and 8 J/cm 2 showed that the films are crystalline in nature with orthorhombic phase.Scanning electron microscopy (SEM) investigation confirmed that the deposited film has spherical grains and the mean grain size of the film increased from 150 nm to 250 nm as laser energy density increased from 6.5 to 8 J/cm 2 . The optical energy gap of the film decreased from 2.24 to 1.7eV when the energy density increased. The optoelectronic properties of the Bi2Sr2CaCu2Ox/Si heterojunction photodetector have been investigated. The photodetectors exhibited rectification properties and the ideality factor of the photodetectors deposited 6.5 and 8 J/cm 2 were 2.3 and 4.2, respectively. The on/off ratio of the photodetectors was found to be 761 and 385 for the photodetectors prepared with6.5 and 8 J/cm 2 , respectively. A responsivity of 514 mA/W at 860 nm was found for the photodetector prepared with 6.5 J/cm 2 without using post annealing and/or buffer layer.

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Section: Resultsmentioning

confidence: 93%

Preparation of Bi2Sr2CaCu2Ox Thin Film by Pulsed Laser Deposition for Optoelectronic Devices Application

Ismail

Hasan

Shaker

2021

Silicon

Self Cite

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“…Therefore, in the textile industry, the finished fabrics by adding ZnO NPs exhibited the attractive functions of ultraviolet and visible light resistance, antibacterial and deodorant [1][2][3][4][5]. Many techniques are used to fabricate nanoparticles for example, vapor deposition, sol-gel, and flame synthesis [6][7][8][9][10][11]. These techniques were complex setup and need special parameters such as temperature and pressure to get the desired composition and size distribution.…”

Section: Introductionmentioning

confidence: 99%

Preparation ZnO nanoparticles with Different Concentration by Laser Ablation in Liquid

Jaber¹,

Khashan²,

Abbas³

2021

ETJ

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Section: Introductionmentioning

confidence: 99%

Preparation ZnO nanoparticles with Different Concentration by Laser Ablation in Liquid

Jaber

Khashan

Abbas

2021

ETJ

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The effects of varying laser pulse numbers on the fabricated of ZnONPs by pulsed laser ablation in deionized water of Zn-metal are investigated. The Nd: YAG laser at energy 600mJ prepared three samples by change the laser pulse number (100, 150, and 200). The results were collected and examined using an electron scanning microscope, XRD – diffraction, and transmission electron microscope. The result revealed the colloidal spherical shape and the homogeneous composition of the ZnO NPs. The nanoparticles resulted in different concentrations and sized distributions by changing the pulse number of a laser. The average particle size and the mass concentration of particle size increase with an increasing number of laser pulses by fixed the laser energy.

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Preparation of low cost n-ZnO/MgO/p-Si heterojunction photodetector by laser ablation in liquid and spray pyrolysis

Cited by 45 publications

References 28 publications

Preparation of Bi2Sr2CaCu2Ox Thin Film by Pulsed Laser Deposition for Optoelectronic Devices Application

Preparation of Bi2Sr2CaCu2Ox Thin Film by Pulsed Laser Deposition for Optoelectronic Devices Application

Preparation ZnO nanoparticles with Different Concentration by Laser Ablation in Liquid

Preparation ZnO nanoparticles with Different Concentration by Laser Ablation in Liquid

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