The highly crystalline tellurium doped ZnO nanowires photodetector

Khosravi-Nejad, Fariba; Teimouri, Maryam; Marandi, Sayeh Jafari; Shariati, Mohsen

doi:10.1016/j.jcrysgro.2019.06.020

Cited by 12 publications

(3 citation statements)

References 20 publications

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“…In this paper, the biosensor properties of Te-ZnO NWs for HBV DNA detection in EIS diagnosis measurement system is investigated. The NWs were fabricated via PVD growth technique in the tubular furnace under controlled situations [17]. The stable and reproducible Te-ZnO NWs-based biosensor with intensive sensitivity is introduced.…”

Section: Introductionmentioning

confidence: 99%

The highly sensitive impedimetric biosensor in label free approach for hepatitis B virus DNA detection based on tellurium doped ZnO nanowires

et al. 2019

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The highly sensitive impedimetric biosensor in label free approach for hepatitis B virus DNA (HPV DNA) detection based on tellurium doped ZnO nanowires was fabricated. The NWs were grown by hybrid thin film oxidation in the physical vapor deposition (PVD) mechanism. The morphology characterization of the synthesized NWs was performed by field emission scanning electron microscopy (FESEM) and the images demonstrated that the diameter and the length of the materialized NWs were around 50 nm and several micrometers, respectively. The high-resolution transmission electron microscopy (HRTEM) image indicated that the fabricated NWs were crystalline and their phase characterization was validated by the X-ray diffraction pattern (XRD pattern). The single-stranded DNA (ss DNA) probe was immobilized on the surface of the Te-ZnO NWs. The electrochemical impedance spectra (EIS) measurements showed high response sensitivity after hybridization with complementary oligonucleotides. The biosensor could distinguish complementary target from non-complementary and mismatch oligonucleotides. The HBV biosensor could respond to complementary target in the concentrations range from 1 pM to 1 μM. The limit of detection (LOD) of the biosensor was 0.1 pM. The stability of the HBV DNA biosensor was investigated and biosensor could show 95% of its initial responses after 8 weeks maintenance.

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Section: Introductionmentioning

confidence: 99%

The highly sensitive impedimetric biosensor in label free approach for hepatitis B virus DNA detection based on tellurium doped ZnO nanowires

et al. 2019

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“…From Fig. 7, it can be understood that the sample annealed at a temperature of 350 °C has the strongest UV emission, which is an indication that the sample has good crystalline quality [18].…”

Section: Photoluminescencementioning

confidence: 88%

Influence of Annealing Temperature on the Structural and Optical Properties of Tellurium-Doped ZnO Thin Films for Optoelectronic Applications

Sonawane¹,

Sonawane²

2023

J. Nano- Electron. Phys.

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The structural, morphological and optical properties of Te-doped ZnO thin films prepared on microscopic glass substrates using the sol-gel technique were investigated. Zinc acetate dihydrate and tellurium tetrachloride as starting precursors, 2-methoxy ethanol as solvent were used to prepare the gel solution. Deposited films were post-annealed at different temperatures and characterized by X-ray Diffraction (XRD), Field Emission Scanning Electron Microscopy (FESEM) and UV-VIS Spectrophotometer for studying structural, surface morphological and optical properties. Energy dispersive analysis by X-ray (EDAX) shows the incorporation of Te content into ZnO. XRD spectrum confirmed that the deposited Te-doped ZnO films are hexagonal. The crystallinity of films was found to be increased with an increase in post-annealing temperature. The optical band gap of Te-doped ZnO annealed films was found to be increased from 3.225 to 3.281 eV. Photoluminescence (PL) intensity of ultraviolet and blue emission measurements of the thin films was obtained in the spectral range from 350 to 600 nm.

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“…According to recent scientific reports, these types of materials represent the future of semiconductor-based devices, so it is important to focus on their development and on selecting the most advantageous method for their fabrication. To date, many methods have been developed for the fabrication of one-dimensional nanomaterials, including chemical and physical vapor deposition methods (CVD and PVD), salt and hydrothermal methods, controlled growth from liquid phase (VLS), matrix synthesis, nanolithography or electrospinning from solution [ 15 , 20 , 31 , 32 , 33 , 34 , 35 , 36 , 37 , 38 , 39 , 40 , 41 , 42 , 43 , 44 , 45 , 46 , 47 , 48 , 49 , 50 , 51 , 52 , 53 , 54 ]. Nevertheless, the last mentioned method has a particular advantage over the others.…”

Section: Introductionmentioning

confidence: 99%

A Short Review on Various Engineering Applications of Electrospun One-Dimensional Metal Oxides

Smok

Tański

2021

Materials

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The growing scientific interest in one-dimensional (1D) nanostructures based on metal-oxide semiconductors (MOS) resulted in the analysis of their structure, properties and fabrication methods being the subject of many research projects and publications all over the world, including in Poland. The application of the method of electrospinning with subsequent calcination for the production of these materials is currently very popular, which results from its simplicity and the possibility to control the properties of the obtained materials. The growing trend of industrial application of electrospun 1D MOS and the progress in modern technologies of nanomaterials properties investigations indicate the necessity to maintain the high level of research and development activities related to the structure and properties analysis of low-dimensional nanomaterials. Therefore, this review perfectly fits both the global trends and is a summary of many years of research work in the field of electrospinning carried out in many research units, especially in the Department of Engineering Materials and Biomaterials of the Faculty of Mechanical Engineering and Technology of Silesian University of Technology, as well as an announcement of further activities in this field.

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The highly crystalline tellurium doped ZnO nanowires photodetector

Cited by 12 publications

References 20 publications

The highly sensitive impedimetric biosensor in label free approach for hepatitis B virus DNA detection based on tellurium doped ZnO nanowires

The highly sensitive impedimetric biosensor in label free approach for hepatitis B virus DNA detection based on tellurium doped ZnO nanowires

Influence of Annealing Temperature on the Structural and Optical Properties of Tellurium-Doped ZnO Thin Films for Optoelectronic Applications

A Short Review on Various Engineering Applications of Electrospun One-Dimensional Metal Oxides

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