Effect of Boric Acid Content on the Structural and Optical Properties of MnS Films Prepared by Spray Pyrolysis Technique
M. Bedıra, M. Öztaşb, S.S. Çelika and T. Özdemıra
aUniversity of Gaziantep, Department of Engineering Physics, Gaziantep, Turkey
bUniversity of Yalova, Chemical and Process Engineering, Yalova, Turkey
Received: May 13, 2013; Revised version: February 14, 2014; In final form: April 14, 2014
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Boron doped MnS films were obtained by the spray pyrolysis method using the boric acid (H3BO3) as dopant source at a substrate temperature of 350°C. The spray pyrolysis method has a wide range of application areas with a low cost well-suited for the manufacture of solar cells. The properties of boron doped MnS films were investigated as a function of doping concentration. The X-ray analysis showed that the films were polycrystalline fitting well with a hexagonal structure and have preferred orientation in the [002] direction. The optical band gap of the undoped and boron doped MnS films were found to vary from 3.38 to 3.20 eV. The changes observed in the energy band gap and structural properties of the films related to the boric acid concentration are discussed in detail.

DOI: 10.12693/APhysPolA.126.840
PACS numbers: 81.15.Rs; 78.28.-e; 61.72.Vv; 61.05.cp; 68.55.Jk