Effect of gate dielectric thicknesses on MOS photodiode performance and electrical properties

Salim, Evan T.; Hassan, Azhar I.; Naaes, Saif A

doi:10.1088/2053-1591/ab1bc2

Cited by 51 publications

(13 citation statements)

References 41 publications

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“…This might be caused by variations in the inter planar spacing of the films as well as defects in the WO 3 lattice sites at higher substrate temperatures. Also, with thinner films, the strain and the dislocation density are found to be raised too [36,37], indicating an inverse relationship between grain size, strain, and dislocation density as shown in table 2 [38][39][40][41][42].…”

Section: Resultsmentioning

confidence: 99%

A sight of view on electrical impacts, structural properties and surface roughness of tungsten trioxide thin film: effect of substrate temperatures in WO₃/Si device fabrication

Salim¹,

Hassan²,

A.Mohamed³

et al. 2023

Phys. Scr.

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Monoclinic WO3 thin films have been effectively deposited by a simple spray pyrolysis technique at a molar concentration of 0.01 M on a glass substrate in the temperature range of 473 to 673 K. These WO3 films were used as an interlayer between the metal and the semiconductor, which formed the basic structure of the photodetector. Effect of substrate temperature on WO3 films during the process of the deposition was systematically interpreted with respect to the structural, morphological, optical and electrical properties of the WO3 films. The X-ray diffraction pattern revealed the polycrystalline nature of the prepared films with monoclinic phases. At the substrate temperature of 623 K, the nano-thin films were strongly bonded to each other as observed from the FE-SEM images. Visible and ultraviolet spectroscopies indicated the band gap (Eg) of the WO3 thin film is 3.30 eV. The dc electrical study recorded a sharp increase in the electrical conductivity of the prepared film at substrate temperature of 623 K for tungsten trioxide. It is worth noting that all diodes showed a positive photoresponse under illumination. In particular, the photodetector with the thickness of 300 nm showed higher responsivity 0.02 A/W and detection specificity 8.29 x 1010 Jones.

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Section: Resultsmentioning

confidence: 99%

A sight of view on electrical impacts, structural properties and surface roughness of tungsten trioxide thin film: effect of substrate temperatures in WO₃/Si device fabrication

Salim¹,

Hassan²,

A.Mohamed³

et al. 2023

Phys. Scr.

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“…A alumina é um dos materiais mais promissores para este fim, por possuir um bandgap largo e uma constante dielétrica elevada (ϵ = 9), que pode ser ainda aumentada com a dopagem apropriada do material puro. O efeito desejado da dopagem é que o valor do bandgap não seja muito alterado, e ao mesmo tempo, que a constante dielétrica seja elevada (Partida-Manzanera, Roberts, Bhat, Zhang, Tan, Dolmanan, Sedghi, Tripathy, & Potter, 2016;Salim, Hassan, Naaes, 2019).…”

Section: Revisão Bibliográficaunclassified

“…A alumina (Al2O3) é um material com diversas aplicações na indústria de alta tecnologia eletroeletrônica, dentre as quais destacamos a sua crescente utilização em dispositivos eletrônicos (Partida-Manzanera, Roberts, Bhat, Zhang, Tan, Dolmanan, Sedghi, Tripathy, & Potter, 2016;Salim, Hassan, Naaes, 2019). A importância da utilização da alumina para este fim deve-se ao fato deste óxido apresentar propriedades importantes como um bandgap largo e uma elevada constante dielétrica.…”

Section: Introductionunclassified

Propriedades Elétricas e Microestruturais da Alumina Dopada com Nióbia

Gonçalves

Castro

Sales

2020

HOLOS

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O comportamento elétrico e microestrutural de cerâmicas à base de óxido de alumínio (Al2O3) puro e dopado com 0,5 mol% de óxido de nióbio (Nb2O5) foram investigados. O efeito desejado da dopagem é que o processo de sinterização, a condutividade elétrica e a constante dielétrica sejam melhorados em relação ao óxido de alumínio puro. Os compactos foram preparados em quantidades estequiométricas e sinterizados pelo procedimento cerâmico convencional. As técnicas de Dilatometria, Difração de Raios X (DRX), Densidade, Porosidade e Microscopia Eletrônica de Varredura com Espectroscopia de Energia Dispersiva de Raios X (MEV/EDX) foram empregadas na caracterização da alumina pura e dopada. A partir dos resultados obtidos, observou-se uma diminuição na temperatura de máxima taxa de retração linear, o aumento da densidade, diminuição da porosidade e o crescimento do grão, com a adição do dopante. As propriedades elétricas foram avaliadas por meio da técnica de espectroscopia de impedância onde se observou apenas um arco de impedância nas composições estudadas atribuindo esse comportamento aos valores idênticos das permissividades relativas do interior e do contorno de grão.

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“…Another biomarker sign is monitoring the stability of pH of organs such as the heart diverse MOx for pH sensors, IrO 2 , WO 3 , RuO 2 , TiO 2 , Ta 2 O 5 , and ZnO which were employed. [ 6 – 8 ] Magnesium oxide MgO is a wide inorganic substance including a broad band-gap. It has been used in various fields such as in bio-medicine [ 9 , 10 ].…”

Section: Introductionmentioning

confidence: 99%

Preparation of MgO–MnO2 nanocomposite particles for cholesterol sensors

Abdul-Hamead

Othman

Fakhri

2021

J Mater Sci: Mater Electron

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Various nanoparticles have been developed for bio-applications. However, nanocomposites particles, (NCPs) with effective and ability to sensing cholesterol, are still needed. Herein, we present new cholesterol and pH-responsive NCPs as sensor particles to promote sensitivity. The traditional method of mixing and grinding was used to fabricate the oxides of magnesium and manganese MgO–MnO 2 NCPs with different mixing ratios. Structural properties, detection of cholesterol, and pH sensitivity were examined. Results propped the high efficiency of MgO–MnO 2 NCPs compared with individual oxides (MgO and MnO 2 ), low response time, while the analytical results confirmed the homogeneous structure of MgO–MnO 2 NCPs. Particle size distribution results for NCPs were within 16.4 to 100 nm, which makes it promising in medical and bio-applications.

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Effect of gate dielectric thicknesses on MOS photodiode performance and electrical properties

Cited by 51 publications

References 41 publications

A sight of view on electrical impacts, structural properties and surface roughness of tungsten trioxide thin film: effect of substrate temperatures in WO₃/Si device fabrication

A sight of view on electrical impacts, structural properties and surface roughness of tungsten trioxide thin film: effect of substrate temperatures in WO₃/Si device fabrication

Propriedades Elétricas e Microestruturais da Alumina Dopada com Nióbia

Preparation of MgO–MnO2 nanocomposite particles for cholesterol sensors

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Effect of gate dielectric thicknesses on MOS photodiode performance and electrical properties

Cited by 51 publications

References 41 publications

A sight of view on electrical impacts, structural properties and surface roughness of tungsten trioxide thin film: effect of substrate temperatures in WO3/Si device fabrication

A sight of view on electrical impacts, structural properties and surface roughness of tungsten trioxide thin film: effect of substrate temperatures in WO3/Si device fabrication

Propriedades Elétricas e Microestruturais da Alumina Dopada com Nióbia

Preparation of MgO–MnO2 nanocomposite particles for cholesterol sensors

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Product

Resources

About

A sight of view on electrical impacts, structural properties and surface roughness of tungsten trioxide thin film: effect of substrate temperatures in WO₃/Si device fabrication

A sight of view on electrical impacts, structural properties and surface roughness of tungsten trioxide thin film: effect of substrate temperatures in WO₃/Si device fabrication