Synthesis and characterizations of l-lysinium trichloroacetate crystals of versatile scaling for temperature sensor and opto-electronic utilities

l-Lysinium trichloroacetate-LLYSTCA is well grown by solution growth methodology and is milled for 12 h to get micro-scaled LLYSTCA and is irradiated with Co-60 source for 500 Gy value. The period of growth of the bulk crystal is 34 days, the lattice constants are a = 5.7288 (2) Å; b = 9.0422 (3) Å; c = 12.4999 (4) Å; α = γ = 90°; and β as 97.253 (1)° and volume as 647.50 Å³. The crystal is of monoclinic form and space group as P2₁. The elemental configuration by computational as well as by CHNSO mode is performed for LLYSTCA and reported. The (110) display profile and computational proviso for the LLYSTCA are performed and reported. The Band gap of LLYSTCA macro-crystal is determined by Tauc’s plot and the direct band gap is 4.45 eV and is 4.46 eV by formula-based calculations, which specifies it for photonic use. Compared with KDP, the macro, micro, and 500 Gy LLYSTCA are 1.01, 1.04, and 1.06 times of second-order nonlinear optical (NLO) effect, and the phase matching effective conditions of the samples are 70.7 mV, 72.8 mV, and 74.2 mV for macro, micro, and 500 Gy cases. The filter influxes of macro, micro, and 500 Gy LLYSTCA are 4.7892, 5.1213, and 5.4589 microns for opto-electronic filters giving the variance that depends on the size of the sample. The lowest value of dielectric constant with increased frequencies is appropriate for electro-optic instrumentation use. The largest values of dielectric loss at lower range of frequencies were aroused from space-charge polarization performance of dipoles. The LLYSTCA macro-crystal exposes negative photo-conductivity nature. The sample is specified for Halosian of atomic projections and pixel-projected use with sensor-based applications to analyze for macro and 500 Gy crystalline samples of LLYSTCA.