Single crystals of organic non-linear optical material, γ-glycine have been grown by gel method for the first time. The γ -phase is confirmed by single crystal XRD. The presence of various functional groups of γ-glycine are confirmed by FTIR. The UV-Vis-NIR spectrum reveals the high percentage of transmission of the sample in the entire visible region. The SHG of γ-glycine is confirmed by Kurtz powder technique. TGA-DTA studies indicate that the crystal is structurally stable upto 170 o C. Microhardness investigations are conducted on the grown crystals. The dielectric constant measurements are carried out and the nature of variation of dielectric constant ε΄ and dielectric loss D in the frequency range of 50 Hz to 5 MHz is studied and reported. Photoconductivity studies of γ-glycine crystals revealed the negative photoconducting nature.

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