Growth of l-Valinium Aluminium Chloride single crystal for OLED and super-capacitor applications

• LVAC, a novel semi-organic material was formed by combining l-Valine and Aluminium Chloride Hexahydrate in equimolar ratio.
• It has wide optical transparency for optoelectronic applications.
• It is capable of emitting blue and green photo luminescence emissions to find OLED applications.
• It possesses pseudo-capacitive nature as electrode material to have more energy storage capacity.

l-Valinium Aluminium Chloride (LVAC), a novel semi-organic material, was grown using slow evaporation under isothermal condition. The single crystal data reveal that the grown crystal belongs to monoclinic system. The SEM micrographs give clear picture about the surface morphology. Further, they confirm the inclusion of aluminium chloride into atomic sites of l-Valine. The compositional elements present in the crystal were identified through EDAX analysis. The mass spectral analysis was carried out to determine the molecular weight of the grown crystal. The optical transparency of the grown crystal was investigated by UV–vis–NIR spectrum. FTIR spectral study was used to identify the functional groups present in the grown material. The luminescence characteristics of grown material were analysed to confirm the effect of metal ion on the ligand. This property makes the material suitable for OLED application. The supercapacitive performance of the grown crystal was finally studied using cyclic voltammetry.