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Synthesis of nonlinear optical material Ag$_5$PS$_4$Cl$_2$ crystals
Bergman, Kyra Nguyen, Vivian Wang, Jian
Bergman, Kyra
Nguyen, Vivian
Wang, Jian
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Kyra- FYRE Poster.pdf
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Authors
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Issue Date
2024
Type
Abstract
Poster
Poster
Genre
Keywords
Nonlinear optical materials,Pentasilver Tetrathiophosphate Dichloride
Subjects (LCSH)
Citation
Bergman, K., Nguyen, V., Wang, Jian. Synthesis of nonlinear optical material Ag$_5$PS$_4$Cl$_2$ crystals. -- Fyre in STEM Showcase, 2024.
Abstract
With the use of an infrared (IR) laser, nonlinear optical materials produce new photons via second harmonic generation (SHG) process. Properties of good nonlinear optical materials include crystallization in the noncentrosymmetric (NCS) space group, significant second harmonic generation (SHG) coefficient, high tolerance to laser damage (laser damage threshold), phase-matching behavior, and resistance to chemical change1. Thus, second harmonic generation only occurs in noncentrosymmetric (NCS) crystals. Pentasilver Tetrathiophosphate Dichloride (Ag$_5$PS$_4$Cl$_2$) crystallizes in NCS structure without any property investigation. Here we study synthesis methods to grow Ag$_5$PS$_4$Cl$_2$ and measure its optical properties. We found that the percentage weight of the compound, the compound mass to AgCl flux ratio, and the temperature profile primarily affected the synthesis of Pentasilver Tetrathiophosphate Dichloride. Ideally, a two to one ratio of compound mass to flux mass synthesized at 800°C, dwelling for 120 hours and cooling to 25°C for 48 hours, resulted in the closest phase match for Ag$_5$PS$_4$Cl$_2$. Our findings lead to additional synthesis of Ag$_5$PS$_4$Cl$_2$ at the specified conditions, introducing a second step. Further research will be done to remove the flux from the Ag$_5$PS$_4$Cl$_2$ crystal with additional flux, high temperature synthesis, and centrifuging.
Table of Contents
Description
Poster and abstract presented at the FYRE in STEM Showcase, 2024.
Research project completed at the Department of Chemistry and Biochemistry.
Research project completed at the Department of Chemistry and Biochemistry.
Publisher
Wichita State University
Journal
Book Title
Series
FYRE in STEM 2024