Preparation method of band gaps adjustable magnesium-doped copper-zinc-tin-sulfur film
A copper-zinc-tin-sulfur and thin-film technology, applied in chemical instruments and methods, tin compounds, inorganic chemistry, etc., can solve problems such as environmental and health hazards, and achieve the effect of avoiding hazards
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[0012] Dissolve equal volumes of copper acetate, zinc acetate, stannous chloride, and thiourea with concentrations of 0.875 mol / L, 0.4375 mol / L, 0.4375 mol / L, and 1.75 mol / L in 30 ml of ethylene glycol methyl ether and 3 ml of ethanolamine, at 45°C, stir until completely dissolved, then add thiourea and stir until completely dissolved. Measure 5 ml of this solution, add magnesium chloride with a ratio of 0, 0.1, 0.3, 0.5, 0.8 to zinc, stir until completely dissolved, and obtain a magnesium-doped copper-zinc-tin-sulfur solution. This solution was dropped on the substrate placed on the spin coater, spin-coated at a low speed of 800 rpm for 6 s, and then spin-coated at a high speed of 2500 rpm for 20 s. After the spin coating was completed, it was dried at 300 °C for 5 min, and then the process of spin coating and drying was repeated 5 times to obtain a Mg-doped copper-zinc-tin-sulfur film with a thickness of 2 μm. figure 2 It is the X-ray diffraction pattern of copper-zinc-tin...
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