Effect of doping concentration on the structural, morphological, optical and electrical properties of Mn-doped CdO thin films
Tóm tắt
Thin films of manganese-doped cadmium oxide (CdO:Mn) with different Mn-doping levels (0, 1, 2, 3 and 4 at.%) were deposited on glass substrates by employing an inexpensive, simplified spray technique using a perfume atomizer at 375 °C. The influence of Mn incorporation on the structural, morphological, optical and electrical properties of CdO films has been studied. All the films exhibit cubic crystal structure with a (1 1 1) preferential orientation. Mn-doping causes a slight shift of the (1 1 1) diffraction peak towards higher angle. The crystallite size of the films is found to decrease from 34.63 nm to 17.68 nm with an increase in Mn doping concentration. The CdO:Mn film coated with 1 at.% Mn exhibit a high transparency of nearly 90 % which decreases for higher doping concentration. The optical band gap decreases with an increase in Mn doping concentration. All the films have electrical resistivity of the order of 10−4 Ω·cm.
Từ khóa
Tài liệu tham khảo
GuptaR, 2011, , Physica E, 44
YakuphanoluF, 2011, , Sol Energy, 85
MallikaA, 2014, , Opt Mater, 36
SayedElA, 2014, , Mat Sci Semicon Proc, 26
HeR, 2012, , Mater Chem Phys, 132
AbdolohzadehZiabariA, 2012, , Surf Coat Tech, 213
DakhelA, 2010, , Thin Solid Films, 518
FangC, 2000, , Cryst Growth, 209
UsharaniK, 2015, , Acta Metall Sin, 4, 8
FerekidesC, 2000, , Thin Solid Films, 480
AhmadT, 2013, , Alloy Compd, 558
ShanmugavelG, 2014, , Int J Chem Mat Res, 2, 88
ManjulaN, 2014, , NagarethinamV Int J ChemTech Res, 6, 705
ZhengB, 2011, , Vacuum, 85
ManjulaN, 2014, , Int J Chem Phys Sci, 3
Biasi, 2009, deR, Alloy Compd, 485
deBiassiR, 2013, , Int, 39
SankarasubramanianK, 2014, , Mat Sci Semicon Proc, 26
SerbetciZ, 2012, , Sol Gel Sci Techn, 61
KavasogluN, 2009, , Phys Chem Solids, 70
BaluA, 2010, , Mater Sci Eng B Adv, 171
GuptaR, 2012, , Alloy Compd, 515