The Deposition Methods of CsI and Ni Tubes in the AAO Template

Chang, Shao Fu; Kao, Mann Juin; Kuo, Chun‐Yan; Chen, Chien Chon; Huang, Ker Jer

doi:10.4028/www.scientific.net/amm.275-277.2256

Cited by 2 publications

(2 citation statements)

References 13 publications

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“…Therefore, it is necessary to carefully design the electrochemical mold and bath for the production of good quality AAO. 59 Figure 7 shows the electrochemical mold for AAO fabrication. Figure 7 where C is cell size (nm), V is anodizing voltage (V), and m is a constant (2-2.5).…”

Section: Electrochemical Bath and Mold Designsmentioning

confidence: 99%

Fabrication of Nanoscale Cesium Iodide (CsI) Scintillators for High-Energy Radiation Detection

Chen¹,

Hun²,

Chen³

et al. 2015

Rev Nanosci Nanotech

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The CsI-based scintillators have been widely used for X-or gamma-ray detections. It has been known that columnar scintillators favor the detections with higher efficiency and spatial resolution. In this paper, we report a facile and low-cost method to fabricate submicron nanoscale CsI columns. We integrated the thermodynamic calculations, positive chamber design, mold design, electrochemical bath design, anodization process, and solidification techniques to fabricate such submicron CsI columns. When the CsI melt is confined to AAO channels with a high aspect ratio, stable CsI columns solidified with smooth surfaces, and free of dendrites or grain boundaries. Different solidification approaches have been attempted, including mechanical injection in vacuum under a negative pressure, injection at 1 atm, 3 atm and 25 atm using Ar gas only, and mechanical injection with 1.6 atm Ar pressure. The mechanical injection or high-pressure Ar injection at 25 atm produced good filling of CsI melt into AAO channels. Such CsI columns inside the smooth AAO walls enable the highenergy radiation detection with high light emission for pixelated scintillator applications.

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Section: Electrochemical Bath and Mold Designsmentioning

confidence: 99%

Fabrication of Nanoscale Cesium Iodide (CsI) Scintillators for High-Energy Radiation Detection

Chen¹,

Hun²,

Chen³

et al. 2015

Rev Nanosci Nanotech

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View full text Add to dashboard Cite

show abstract

“…It possesses many unique features, such as high aspect ratio, uniform pore size, and high structural order. It is also environmentally friendly and has chemical stability and thermal stability [40]. In our previous work, we developed a facile approach for growth of ZnO nanowires (NWs) via using AAO templates with the assistance of vacuum injection molding process.…”

Section: Introductionmentioning

confidence: 99%

Fabrication and characterization of well-ordered PbS nanowires in aluminum oxide template by sulfurization and vacuum injection molding processes

et al. 2021

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Lead (Pb) nanowire arrays were fabricated with anodic aluminum oxide (AAO) templates of 30, 100 and 300 nm in pore diameters. Through vacuum injection molding process, Pb/AAO composite was obtained, and lead sulfide (PbS) could further be synthesized after exposing to sulfur gas. AAO templates with different pore sizes were fabricated by using pure aluminum in a two-step anodization. Three types of solutions, which are 10 vol% sulfuric acid, 3 wt% oxalic acid and 1 vol% phosphoric acid, were adopted to achieve AAO of various pore sizes. Different sulfurization temperatures and time spans were applied for studying on the formation mechanism of PbS. Finally, the morphology, composition, structure and elements distribution of the as-prepared Pb and PbS nanowires were confirmed through the use of scanning electron microscopy, energy dispersive x-ray spectroscopy, element-mapping, x-ray diffraction and transmission electron microscopy analysis. The results indicated that Pb nanowires were successfully obtained after applying vacuum injection molding process with 50 kgf cm−2 hydraulic pressure, and PbS nano arrays can be formed by sulfurization at 500 °C for 5 h. Furthermore, an optical property, ultraviolet–visible (UV–Vis) absorption, was also measured. The measurement of the PbS nanowires showed that a significant quantum confinement effect made the energy gap produce a blue shift from 0.41 eV to 1.65 eV or 1.72 eV.

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The Deposition Methods of CsI and Ni Tubes in the AAO Template

Cited by 2 publications

References 13 publications

Fabrication of Nanoscale Cesium Iodide (CsI) Scintillators for High-Energy Radiation Detection

Fabrication of Nanoscale Cesium Iodide (CsI) Scintillators for High-Energy Radiation Detection

Fabrication and characterization of well-ordered PbS nanowires in aluminum oxide template by sulfurization and vacuum injection molding processes

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