The Effect of Different Complexing Agents on the Properties of Zinc Sulfide Thin Films Deposited from Aqueous Solutions

2016;
: pp. 317 – 323
Authors: 

Pavlo Shapoval, Martyn Sozanskyi, Iosyp Yatchyshyn, Bogdan Kulyk, Mykhaylo Shpotyuk and Roman Gladyshevskii

Pavlo Shapoval-1, Martyn Sozanskyi-1, Iosyp Yatchyshyn-1, Bogdan Kulyk-2, Mykhaylo Shpotyuk-3 and Roman Gladyshevskii-4

  1. Department of Analytical Chemistry, Lviv Polytechnic National University, 12 S. Bandera St., 79013 Lviv, Ukraine; pavlo.y.shapoval@lpnu.ua
  2. Scientific-Technical and Educational Center of Low Temperature Studies, Ivan Franko National University of Lviv, 50 Dragomanova St., 79005 Lviv, Ukraine
  3. Department of Semiconductor Electronics, Lviv Polytechnic National University, 12 S. Bandera St., 79013 Lviv, Ukraine
  4. Department of Inorganic Chemistry, Ivan Franko National University of Lviv, 6 Kyryla i Mefodiya St., 79005 Lviv, Ukraine

The zinc sulfide (ZnS) thin films were prepared on glass substrates by chemical bath deposition using the aqueous solutions of zinc chloride, thiourea, pH regulator and complexing agent (ammonia and hydrazine hydrate, trisodium citrate or sodium hydroxide). The calculations of boundary conditions for formation of zinc sulfide and zinc hydroxide were made at various zinc salt concentrations with different complexing agents. The structural, morphology and optical properties of the ZnS thin films were investigated. The thickness of ZnS films was measured and the recalculation of zinc mass per cm2 of the substrate surface was held for comparison. The deposition mechanism is discussed.

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