Optical Properties of Cadmium Oxide (CdO) Thin Films

Ullah, Hadaate; Rahaman, Ridoanur; Mahmud, Shahin

doi:10.11591/ijeecs.v5.i1.pp81-84

Cited by 10 publications

(5 citation statements)

References 20 publications

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“…Figure shows an optical micrograph of the A-HAp-Cd sphere where a porous white surface is observed with the presence of certain yellow specks, as indicated in the figure with a red arrow. When subjecting the A-HAp-Cd spheres to 200 °C for 2 h, a change in the color of the surface of the sphere from white to yellow with reddish-brown areas denoting the change from Cd(OH) 2 to CdO was observed with heat treatment. , …”

Section: Resultsmentioning

confidence: 99%

“…When subjecting the A-HAp-Cd spheres to 200 °C for 2 h, a change in the color of the surface of the sphere from white to yellow with reddish-brown areas denoting the change from Cd(OH) 2 to CdO was observed with heat treatment. 31,32 To confirm the formation of cadmium oxide and hydroxide, an X-ray diffractogram of the A-HAp-Cd spheres was obtained, as shown in Figure 11. In the spheres, when cadmium was adsorbed, the appearance of peaks was observed in the diffractogram located at 29.56, 31.63, and 48.67°corresponding to the (011), (130), and (211) planes of the Cd(OH) 2 formation according to JCPDS card no 84-1767, 33 in addition to the peaks located at 39.73 and 66.78°corresponding to the (200) and (311) planes belonging to CdO according to JCPDS card no 05-0640.…”

Section: ■ Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

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Alumina–Hydroxyapatite Millimetric Spheres for Cadmium(II) Removal in Aqueous Medium

Silva-Holguín,

Medellín-Castillo,

Zaragoza-Contreras

et al. 2023

ACS Omega

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Heavy metals can act as selective agents in the development and proliferation of antibiotic-resistant bacteria through a process called coselection. In the year 2050, an estimated 10 million deaths will be caused by antibiotic-resistant bacteria; therefore, the presence of heavy metals in bodies of water represents an environmental and sanitary threat that requires efficient treatment processes and/or materials for their removal. In the present study, the effect of the hydroxyapatite coating on the adsorbent capacity of cadmium in alumina spheres was evaluated. The hydroxyapatite coating on the alumina sphere increased the surface area from 0.66 to 0.96 m2/g and the number of acid sites from 0.064 to 0.306 meq/g and displaced the IEP of hydroxyapatite from 5.37 to 4.2, increasing the Cd2+ adsorbing capacity from 59.87 mg/g to 89.37 mg/g and promoting adsorption by surface complexation. Alumina-hydroxyapatite spheres stand out for their improved adsorbent properties and easy handling, which positioned this material as a potential alternative in adsorption processes.

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Section: Resultsmentioning

confidence: 99%

Section: ■ Resultsmentioning

confidence: 99%

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Alumina–Hydroxyapatite Millimetric Spheres for Cadmium(II) Removal in Aqueous Medium

Silva-Holguín,

Medellín-Castillo,

Zaragoza-Contreras

et al. 2023

ACS Omega

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“…Some metal oxides like Zinc, Indium, Cadmium and Tin show different behaviors as metals or insulators depending on their optical and electrical properties [1]. Transparent conductive oxide (TCO) thin films have many unique properties such as high optical transmittance and low resistivity.…”

Section: Introductionmentioning

confidence: 99%

The effects of CuO doping on structural, electrical and optical properties of CdO thin films deposited by pulsed laser deposition technique

Al-Dujayli¹,

Ali²

2022

JOR

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Thin films of (CdO)x (CuO)1-x (where x = 0.0, 0.2, 0.3, 0.4 and 0.5) were prepared by the pulsed laser deposition. The CuO addition caused an increase in diffraction peaks intensity at (111) and a decrease in diffraction peaks intensity at (200). As CuO content increases, the band gap increases to a maximum of 3.51 eV, maximum resistivity of 8.251x 104 Ω.cm with mobility of 199.5 cm2 / V.s, when x= 0.5. The results show that the conductivity is ntype when x value was changed in the range (0 to 0.4) but further addition of CuO converted the samples to p-type.

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“…In recent years, transparent thin films of conductive oxides (TCOs), such as PbO , CdO, ZnO, SnO 2 , In 2 O 3 , and MoO 3 , of semiconductor materials have been used in various applications, including transistors, optical storage devices, gas sensors, phototransistors, and photo-thermal and photovoltaic converters [1,2]. Most of the studies related to transparent conducting metal oxides were performed on anion deficient (oxygen deficient) materials and, hence, always produced n-type conductors [3,4]. It is well known that high carrier mobility (μ H ) is essential for manufacturing TCOs with good electro-optical properties [5].…”

Section: Introductionmentioning

confidence: 99%

Synthesis and Characterization of a Nano (CdO)0.94:(In2O3) 0.06 / Si gas Sensor

Alias

Abdul-Rahman

2021

eijs

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In this work, a (CdO)0.94:(In2O3)0.06 film was developed on a glass substrate using Q- switching pulse laser beam (Nd:YAG; wavelength 1064 nm). The quantitative elemental analysis of the (CdO)0.94:(In2O3)0.06 thin film was achieved using energy dispersive X- ray diffraction (EDX). The topological and morphological properties of the deposited thin film were investigated using atomic force microscope (AFM) and field emission scan electron microscopy (FESEM). The I-V characteristic and Hall effect of (CdO)0.94 :(In2O3)0.06 thin films were used to study the electrical properties. The gas sensor properties of the film prepared on n-Si were investigated for oxidization and reduction gases.

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Optical Properties of Cadmium Oxide (CdO) Thin Films

Cited by 10 publications

References 20 publications

Alumina–Hydroxyapatite Millimetric Spheres for Cadmium(II) Removal in Aqueous Medium

Alumina–Hydroxyapatite Millimetric Spheres for Cadmium(II) Removal in Aqueous Medium

The effects of CuO doping on structural, electrical and optical properties of CdO thin films deposited by pulsed laser deposition technique

Synthesis and Characterization of a Nano (CdO)0.94:(In2O3) 0.06 / Si gas Sensor

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