Mohankumar, V (2025) Optical transmittance, optical homogeneity, HRXRD and third‑order NLO properties of an organic 1H‑benzotriazole salicylic acid (BHSA) single crystals. Optical transmittance, optical homogeneity, HRXRD and third‑order NLO properties of an organic 1H‑benzotriazole salicylic acid (BHSA) single crystals.

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Abstract

The single crystals of an organic 1H-benzotriazole salicylic acid (BHSA) were
harvested adopting solution growth method (SEST) and the characterizations
carried out in the subsequent sections emphasize that it is reported for the first
time in the literature with regards to the title crystal. The structural parameters of
the grown crystals were assessed using XRD technique. The presence of internal
structural grain boundaries was analyzed using high-resolution XRD (HRXRD)
along (1 0 -1) plane. The vibrational assignments in the material were assessed
using Fourier transform infrared (FTIR) analysis. The optical transmittance is
found to be 67% with its cut-off and bandgap to be 339 nm and 3.55 eV, respectively.
The stability as assessed by TGA-DTA is found to be 131 °C. The density
of etch pits were 57.6 × 103
cm−
2 for 4 s, 40 × 103
cm−
2 for 6 s. Optical homogeneity
has been analysed from birefringence interferometry. Brewster’s angle method
was adopted to find the refractive index of the title material. Z-scan technique
revealed the third-order nonlinear optical properties of the BHSA crystal

Item Type: Article
Divisions: PSG College of Arts and Science > Department of Physics
Depositing User: Dr. B Sivakumar
Date Deposited: 19 May 2026 06:10
Last Modified: 19 May 2026 06:10
URI: https://ir.psgcas.ac.in/id/eprint/2847

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