Characterization of solid inorganic and coordination compounds by their near infrared reflection spectra

1966 ◽  
Vol 19 (10) ◽  
pp. 1785 ◽  
Author(s):  
AF Reid
Keyword(s):  
Coordination Compounds ◽  
Near Infrared ◽  
Organometallic Compounds ◽  
Reflection Spectra ◽  
Convenient Means ◽  
Infrared Reflection ◽  
Number Of Classes

The near infrared combination spectra of a number of classes of solid inorganic and coordination compounds have been recorded and assigned. The spectra are shown to be typical of particular ligands regardless of the compounds in which they are contained, and to serve as an experimentally convenient means of characterization of solid coordination or organometallic compounds.

scholarly journals DISCRIMINATION OF VARIETY AND AUTHENTICITY FOR RICE BASED ON VISUAL/NEAR INFRARED REFLECTION SPECTRA

2009 ◽  
Vol 28 (5) ◽  
pp. 353-356 ◽  
Author(s):  
Liang LIANG ◽  
Zhi-Xiao LIU ◽  
Min-Hua YANG ◽  
You-Xiang ZHANG ◽  
Cheng-Hua WANG
Keyword(s):  
Near Infrared ◽  
Reflection Spectra ◽  
Infrared Reflection

Characterization of Thermal Annealed Bi Implanted Silica

1992 ◽  
Vol 279 ◽  
Author(s):  
S. H. Morgan ◽  
D. O. Henderson ◽  
Z. Pan ◽  
R. H. Magruder ◽  
R. A. Zuhr
Keyword(s):  
Optical Absorption ◽  
Thermal Annealing ◽  
High Purity ◽  
Reflection Spectra ◽  
Infrared Reflectance ◽  
Infrared Reflection ◽  
Before And After ◽  
Annealing Effects

ABSTRACTOptical and infrared reflection spectra for Bi implanted silica are reported as a function of dose and thermal annealing. A series of high purity silica samples were implanted with Bi ions at an energy of 350 KeV. Doses were 1 × 1016 and 1.0 × 1017ions/cm2 at 5μamps/cm2. The samples were subsequently thermally annealed at 400, 600 and 800 C. The optical absorption from 6.2 to 1.8 eV and infrared reflectance from 5000 to 450 cm”−1 were measured before and after annealing. Effects of thermal annealing are strongly dependent on Bi content.

scholarly journals Measurement of Tea Leaves Ingredients with Visible and Near Infrared Reflection Spectra

2006 ◽  
Vol 7 (1) ◽  
pp. 39-44
Author(s):  
Yuki FUKUMOTO ◽  
Sadaaki IIBUCHI ◽  
Mayumi SAITO ◽  
Masashi OMORI ◽  
Yusuke SAWAI ◽  
...  
Keyword(s):  
Near Infrared ◽  
Reflection Spectra ◽  
Tea Leaves ◽  
Infrared Reflection

Investigation of the Fabry–Perot dip shift in VCSEL photoluminescence near-infrared reflection spectra

2018 ◽  
Vol 50 (4) ◽  
Author(s):  
Hongyan Yu ◽  
Shun Yao ◽  
Guangzheng Zhou ◽  
Qing Wang ◽  
Tian Lan ◽  
...  
Keyword(s):  
Near Infrared ◽  
Reflection Spectra ◽  
Infrared Reflection ◽  
Fabry Perot

Highly Fluorescent Au25-xAgx Nanoclusters Protected with Poly(ethylene glycol) - and Zwitterion-Modified Thiolate Ligands

2018 ◽  
Author(s):  
Dinesh Mishra ◽  
Sisi Wang ◽  
Zhicheng Jin ◽  
Eric Lochner ◽  
Hedi Mattoussi
Keyword(s):  
Quantum Yield ◽  
Near Infrared ◽  
Small Diameter ◽  
Binding Energies ◽  
Thiolate Ligands ◽  
Nir Emission ◽  
Thiolate Complexes ◽  
Long Lifetime ◽  
Poly Ethylene

<p>We describe the growth and characterization of highly fluorescing, near-infrared-emitting nanoclusters made of bimetallic Au<sub>25-x</sub>Ag<sub>x</sub> cores, prepared using various monothiol-appended hydrophobic and hydrophilic ligands. The reaction uses well-defined triphenylphosphine-protected Au<sub>11</sub> clusters (as precursors), which are reacted with Ag(I)-thiolate complexes. The prepared nanoclusters are small (diameter < 2nm, as characterized by TEM) with emission peak at 760 nm and long lifetime (~12 µs). The quantum yield measured for these materials was 0.3 - 0.4 depending on the ligand. XPS measurements show the presence of both metal atoms in the core, with measured binding energies that agree with reported values for nanocluster materials. The NIR emission combined with high quantum yield, small size and ease of surface functionalization afforded by the coating, make these materials suitable to implement investigations that address fundamental questions and potentially useful for biological sensing and imaging applications.<br></p>

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