In-Situ Polarization-Dependent Total-Reflection Fluorescence XAFS Studies on the Structure Transformation of Pt Clusters on α-Al2O3(0001)

1997 ◽  
Vol 101 (28) ◽  
pp. 5549-5556 ◽  
Author(s):  
Kiyotaka Asakura ◽  
Wang-Jae Chun ◽  
Masayuki Shirai ◽  
Keiichi Tomishige ◽  
Yasuhiro Iwasawa
Keyword(s):  
Total Reflection ◽  
Structure Transformation ◽  
Α Al2o3 ◽  
Fluorescence Xafs

Growth of pentacene on α−Al2O3 (0001) studied by in situ optical spectroscopy

2017 ◽  
Vol 1 (4) ◽  
Author(s):  
Lei Zhang ◽  
X. Fu ◽  
M. Hohage ◽  
P. Zeppenfeld ◽  
L. D. Sun
Keyword(s):  
Optical Spectroscopy ◽  
Α Al2o3

scholarly journals Toward Chalcogenide Platform Infrared Sensor Dedicated to the In Situ Detection of Aromatic Hydrocarbons in Natural Waters via an Attenuated Total Reflection Spectroscopy Study

Sensors ◽  
2021 ◽  
Vol 21 (7) ◽  
pp. 2449
Author(s):  
Marion Baillieul ◽  
Emeline Baudet ◽  
Karine Michel ◽  
Jonathan Moreau ◽  
Petr Němec ◽  
...  
Keyword(s):  
Natural Water ◽  
Natural Waters ◽  
Total Reflection ◽  
Attenuated Total Reflection ◽  
Infrared Sensor ◽  
Reflection Spectroscopy ◽  
Infrared Spectral ◽  
Micro Sensor ◽  
In Situ Detection

The objective of this study is to demonstrate the successful functionalization of the surface of a chalcogenide infrared waveguide with the ultimate goal of developing an infrared micro-sensor device. First, a polyisobutylene coating was selected by testing its physico-chemical compatibility with a Ge-Sb-Se selenide surface. To simulate the chalcogenide platform infrared sensor, the detection of benzene, toluene, and ortho-, meta- and para-xylenes was efficaciously performed using a polyisobutylene layer spin-coated on 1 and 2.5 µm co-sputtered selenide films of Ge28Sb12Se60 composition deposited on a zinc selenide prism used for attenuated total reflection spectroscopy. The thickness of the polymer coating was optimized by attenuated total reflection spectroscopy to achieve the highest possible attenuation of water absorption while maintaining the diffusion rate of the pollutant through the polymer film compatible with the targeted in situ analysis. Then, natural water, i.e., groundwater, wastewater, and seawater, was sampled for detection measurement by means of attenuated total reflection spectroscopy. This study is a valuable contribution concerning the functionalization by a hydrophobic polymer compatible with a chalcogenide optical sensor designed to operate in the mid-infrared spectral range to detect in situ organic molecules in natural water.

Continuous α-Al2O3 fibers grown by seeding with in-situ suspension

2020 ◽  
Vol 46 (10) ◽  
pp. 15638-15645
Author(s):  
Xiangdong Li ◽  
Xiaohui Su ◽  
Hongrui Xiao ◽  
Lifu Chen ◽  
Siwei Li ◽  
...  
Keyword(s):  
Α Al2o3

Novel Routes to Cu(salicylaldimine) Covalently Bound to Silica:  Combined Pulse EPR and in Situ Attenuated Total Reflection-IR Studies of the Immobilization

2003 ◽  
Vol 42 (8) ◽  
pp. 2559-2571 ◽  
Author(s):  
Eamonn F. Murphy ◽  
Davide Ferri ◽  
Alfons Baiker ◽  
Sabine Van Doorslaer ◽  
Arthur Schweiger
Keyword(s):  
Total Reflection ◽  
Attenuated Total Reflection ◽  
Ir Studies ◽  
Pulse Epr ◽  
Covalently Bound
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