Investigation on Hirshfeld surface analysis, Laser-damaged threshold, Mechanical and NLO properties of solution-grown 2-aminopyridinium benzoate crystal

The article delves into the synthesis, characterization, and analysis of the 2-aminopyridinium benzoate (2APBA) crystal, highlighting its potential for advanced photonics applications. The study provides a detailed investigation of the crystal's third-order nonlinear optical properties, mechanical strength, and resilience to high-power lasers. Key topics include the crystal's solubility behavior, growth process, and optical analysis, revealing a wide transparency window and a direct band gap of 3.5 eV. The article also explores the crystal's thermal stability, dielectric properties, and mechanical strength through Vickers and Knoop microhardness tests. Notably, the crystal exhibits a high laser damage threshold of 8.50 GW/cm², indicating its robustness for high-power laser applications. The comprehensive analysis bridges the gap between basic crystallographic data and functional performance, establishing 2APBA as a promising material for nonlinear optical and optoelectronic devices.