Analysis of Te and TeO&amp;lt;sub&amp;gt;2&amp;lt;/sub&amp;gt; on CdZnTe Nuclear Detectors Treated with Hydrogen Bromide and Ammonium-Based Solutions

Drabo, Mebougna L.; Egarievwe, Stephen U.; Okwechime, Ifechukwude O.; Jones, Dominique E.; Hossain, Anwar; James, R. B.

doi:10.4236/msce.2017.54002

Cited by 4 publications

(3 citation statements)

References 21 publications

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“…The high-resolution XPS spectra of the Te 3d are fit in Figure c. The peaks centered at 576.0 and 586.2 eV can be assigned to tetragonal TeO 2 . , The O 1s spectrum shows a peak centered at 530.3 eV (Figure S1), which is assigned to the binding energy of Te–O.…”

Section: Resultsmentioning

confidence: 99%

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Coral-Like TeO₂ Microwires for Rechargeable Aluminum Batteries

Wang

Luo

et al. 2020

ACS Sustainable Chem. Eng.

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Recently, aluminum-ion batteries have been receiving growing attention based on their low cost, good safety, and excellent capacity. In this work, the coral-like TeO 2 microwires synthesized by two-step thermal treatment can be revealed as excellent aluminum-ion battery cathodes. It delivers a capacity of 214.2 mAh g −1 and a relatively high-voltage plateau of ∼1.3 V at 200 mA g −1 and remains at 88.5 mAh g −1 over 100 cycles. Moreover, the reaction mechanism of TeO 2 is verified as the insertion of Al 3+ ions during discharging. More importantly, based on the design of acetylene black-modified separator, the higher reversible capacity of 152.0 mAh g −1 can be achieved over 150 cycles at 200 mA g −1 with a high Coulombic efficiency of 98.4%. At a higher current density of 500 mA g −1 , the battery can reach a stable capacity of 91.1 mAh g −1 over 700 cycles, displaying the superior long-term cycling stability, high capacity, and good rate capability. The results indicate that the coral-like TeO 2 microwires and acetylene black-modified separator can open up a new opportunity and be of great significance for further development of highcapacity and high-stability aluminum-ion batteries.

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Section: Resultsmentioning

confidence: 99%

“…The peaks centered at 576.0 and 586.2 eV can be assigned to tetragonal TeO 2 . 38,39 The O 1s spectrum shows a peak centered at 530.3 eV (Figure S1), which is assigned to the binding energy of Te−O. SEM was utilized to confirm the unique morphologies of Te before and after thermal oxidization.…”

Section: ■ Experimental Sectionmentioning

confidence: 99%

Coral-Like TeO₂ Microwires for Rechargeable Aluminum Batteries

Wang

Luo

et al. 2020

ACS Sustainable Chem. Eng.

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“…These processes are used to remove surface defects that are left after the mechanical polishing of the wafers. The chemical treatment process involves passivation to make the wafer surfaces more chemically stable [4] [9] [10] [11].…”

Section: Introductionmentioning

confidence: 99%

Study of Chemical Etching and Chemo-Mechanical Polishing on CdZnTe Nuclear Detectors

Adams¹,

Egarievwe²,

Agbalagba³

et al. 2019

MSCE

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Cadmium zinc telluride (CdZnTe) semiconductor has applications in the detection of X-rays and gamma-rays at room temperature without having to use a cooling system. Chemical etching and chemo-mechanical polishing are processes used to smoothen CdZnTe wafer during detector device fabrication. These processes reduce surface damages left after polishing the wafers. In this paper, we compare the effects of etching and chemo-mechanical polishing on CdZnTe nuclear detectors, using a solution of hydrogen bromide in hydrogen peroxide and ethylene glycol mixture. X-ray photoelectron spectroscopy (XPS) was used to monitor TeO 2 on the wafer surfaces. Currentvoltage and detector-response measurements were made to study the electrical properties and energy resolution. XPS results showed that the chemical etching process resulted in the formation of more TeO 2 on the detector surfaces compared to chemo-mechanical polishing. The electrical resistivity of the detector is of the order of 10 10 Ω-cm. The chemo-mechanical polishing process increased the leakage current more that chemical etching. For freshly treated surfaces, the etching process is more detrimental to the energy resolution compared to chemo-mechanically polishing.

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The effect of the PbI$$_2$$ surface passivation on the leakage current for MAPbI$$_3$$ single crystal nuclear detectors

Jiajie,

Gang,

Hao

et al. 2024

J Mater Sci: Mater Electron

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Analysis of Te and TeO<sub>2</sub> on CdZnTe Nuclear Detectors Treated with Hydrogen Bromide and Ammonium-Based Solutions

Cited by 4 publications

References 21 publications

Coral-Like TeO₂ Microwires for Rechargeable Aluminum Batteries

Coral-Like TeO₂ Microwires for Rechargeable Aluminum Batteries

Study of Chemical Etching and Chemo-Mechanical Polishing on CdZnTe Nuclear Detectors

The effect of the PbI$$_2$$ surface passivation on the leakage current for MAPbI$$_3$$ single crystal nuclear detectors

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Analysis of Te and TeO&lt;sub&gt;2&lt;/sub&gt; on CdZnTe Nuclear Detectors Treated with Hydrogen Bromide and Ammonium-Based Solutions

Cited by 4 publications

References 21 publications

Coral-Like TeO2 Microwires for Rechargeable Aluminum Batteries

Coral-Like TeO2 Microwires for Rechargeable Aluminum Batteries

Study of Chemical Etching and Chemo-Mechanical Polishing on CdZnTe Nuclear Detectors

The effect of the PbI$$_2$$ surface passivation on the leakage current for MAPbI$$_3$$ single crystal nuclear detectors

Contact Info

Product

Resources

About

Analysis of Te and TeO<sub>2</sub> on CdZnTe Nuclear Detectors Treated with Hydrogen Bromide and Ammonium-Based Solutions

Coral-Like TeO₂ Microwires for Rechargeable Aluminum Batteries

Coral-Like TeO₂ Microwires for Rechargeable Aluminum Batteries