File Name : figure s1.tif Caption : figure s1. tga(green)/dsc(blue) of precursor [etznoipr]₄ under helium (left) and air (right). the red line represents the 1^st derivative of the mass with time. File Name : figure s2.tif Caption : figure s2. xps scans of ga 2p peaks of zno (s0) and gzo (s1-s5) thin films with increasing amounts of at% ga. vertical black lines indicate the literature value of ga 2p_3/2 for ga³⁺ in ga₂o₃ environment and vertical red lines indicate the literature value of ga 2p_3/2 for ga⁰ (metal).^[1] File Name : figure s3.tif Caption : figure s3. xps scans of ga 3d peaks of zno (s0) and gzo (s1-s5) thin films with increasing amounts of at% ga. vertical black lines indicate the literature value of ga 3d_5/2 for ga³⁺in ga₂o₃ environment^[2] (blue rectangle shows error of 0.2 ev) and vertical red lines indicate the literature value of ga 3d_3/2 for ga⁰ (metal).^[1] File Name : figure s4.tif Caption : figure s4. texture coefficients for zno and gzo films with 0.7 – 7.0 at% ga. File Name : figure s5.tif Caption : figure s5. optical transmission and reflection spectra of undoped zno (s0) and gallium-doped zno thin films with increasing at% of ga (s1 – s5). File Name : figure s6.tif Caption : figure s6. relationship between carrier concentration (n_b) and band gap enhancement of gzo, in comparison with total amounts of gallium incorporated as dopant (at% ga x η_de) for each level of at% ga. File Name : figure s7.tif Caption : figure s7. representation of e_opt vs n_b^2/3 for thin films s0 – s5. File Name : figure s8.tif Caption : figure s8. representation of effective mass m*/m₀ vs. n_b^2/3 for thin films s0 – s5. File Name : figure s9.tif Caption : figure s9. ¹h nmr of precursor [etznoⁱpr]₄ in c₆d₆. File Name : figure s10.tif Caption : figure s10. ¹³c{¹h} nmr of precursor [etznoⁱpr]₄ in c₆d₆. File Name : figure s11.tif Caption : figure 11. ftir of precursor [etznoⁱpr]₄. File Name : figure s12.tif Caption : figure 12. ftir of hydrolised precursor [etznoⁱpr]₄.