Visible Emission in Nanocrystalline Rutile: Free Exciton and Water as Probes for Midgap States in Adsorption/Desorption Using “Conventional” and Synchronous Luminescence Spectroscopy

2017 ◽  
Vol 121 (40) ◽  
pp. 21985-21994 ◽  
Author(s):  
Alexander Samokhvalov
Keyword(s):  
Free Exciton ◽  
Visible Emission ◽  
Luminescence Spectroscopy ◽  
Adsorption Desorption ◽  
Synchronous Luminescence Spectroscopy

Synchronous Luminescence Spectroscopy: Methodology and Applicability

1982 ◽  
Vol 36 (5) ◽  
pp. 576-581 ◽  
Author(s):  
Tuan Vo-Dinh
Keyword(s):  
Direct Determination ◽  
Cost Effective ◽  
Luminescence Spectroscopy ◽  
Second Derivative ◽  
Experimental Conditions ◽  
Complex Samples ◽  
Figures Of Merit ◽  
Synchronous Luminescence Spectroscopy ◽  
Complex Organic

This paper discusses the figures of merit associated with the synchronous luminescence (SL) technique in multicomponent analysis of complex samples. Spectral interferences and experimental factors that influence the choice of experimental conditions are investigated. The efficacy of SL is demonstrated in the direct determination of anthracene and 2-methylanthracene in a raw coal liquid. The application of the second-derivative technique to the SL measurement of organic samples is shown. Special emphasis is directed toward the applicability of the SL technique as a practical and cost-effective screening procedure in the routine analysis of complex organic samples.

Synchronous Luminescence Spectroscopy as a Tool in the Discrimination and Characterization of Oral Cancer Tissue

2019 ◽  
Vol 29 (2) ◽  
pp. 361-367 ◽  
Author(s):  
Einstein Gnanatheepam ◽  
Udayakumar Kanniyappan ◽  
Koteeswaran Dornadula ◽  
Aruna Prakasarao ◽  
Ganesan Singaravelu
Keyword(s):  
Oral Cancer ◽  
Luminescence Spectroscopy ◽  
Cancer Tissue ◽  
Synchronous Luminescence Spectroscopy

Understanding the structure, bonding and reactions of nanocrystalline semiconductors: a novel high-resolution instrumental method of solid-state synchronous luminescence spectroscopy

2021 ◽  
Vol 23 (12) ◽  
pp. 7022-7036
Author(s):  
Alexander Samokhvalov
Keyword(s):  
Electronic Structure ◽  
Solid State ◽  
High Resolution ◽  
Luminescence Spectroscopy ◽  
Instrumental Method ◽  
Resolution Method ◽  
Absorption And Emission ◽  
Nanocrystalline Semiconductors ◽  
Synchronous Luminescence Spectroscopy ◽  
High Resolution Method

Solid-state synchronous luminescence spectroscopy (SS-SLS) is a novel high-resolution method to study the absorption and emission of light, electronic structure, and reactions of nanocrystalline semiconductors.

Fluorescence Studies of Complex Coal Liquid Samples Using the Lifetime Synchronous Spectrum (LiSS)

1995 ◽  
Vol 49 (6) ◽  
pp. 813-818 ◽  
Author(s):  
Jeremy M. Shaver ◽  
Linda B. McGown
Keyword(s):  
Luminescence Spectroscopy ◽  
Spectral Features ◽  
Fluorescence Lifetimes ◽  
Complex Samples ◽  
Fluorescence Studies ◽  
Unique Information ◽  
Liquid Samples ◽  
Coal Liquids ◽  
Synchronous Luminescence Spectroscopy

An analysis of coal liquids is demonstrated in the first application of the lifetime synchronous spectrum (LiSS) to the characterization of complex samples. The measurement of wavelength-resolved fluorescence lifetimes in the LiSS is shown to enhance the fingerprinting of coal liquids relative to conventional synchronous luminescence spectroscopy. The concentration independence of fluorescence lifetimes of individual compounds provides unique information about the composition of the coal liquids and the sources of their spectral features, indicating similarities among different samples and leading to the identification of regions in the synchronous spectra that are best for discriminating among the samples. The LiSSes also provided information about the nature of the processes responsible for spectral red shifts that occurred with increasing concentration of coal liquid.

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