A method of CaO-doped SrCu.sub.2O.sub.2 spin-on precursor synthesis and low temperature p-type thin film deposition, includes preparing a wafer to receive a spin-coating thereon; selecting metalorganic compounds to form a SrCu.sub.2O.sub.2 precursor, mixing and refluxing the metalorganic compounds to form a precursor mixture; filtering the precursor mixture to produce a spin-coating precursor; applying the spin-coating precursor to the wafer in a two-step spin coating procedure; baking the spin-coated wafer using a hot-plate bake to evaporate substantially all of the solvents; and annealing the spin-coated wafer to form a CaO-doped SrCu.sub.2O.sub.2 layer thereon.