Volume : III, Issue : III, March - 2013

Effect the Thickness on Structural and Optical Paramteres of PbSe Thin Films

Bushra A. Hasan, Issam M. Ibrahim, Salma M. Shaban

Abstract :

PbSe compound have been successfully prepared by putting the propagate weigh of lead and selenium in sealed evacuated quartz tube under vacuum pressure (10–2Torr) in an oven at 1273 K for five hours. Thin films of PbSe of different thickness (300,500,700 and 1000 nm) have been prepared on KBr substrates at room temperature by vacuum deposition. The structure of PbSe alloy and thin film of different thickness are identified by X–ray diffraction. The structural parameters such as interplanar distance (d), grain size (D), and dislocation density (δ) have been evaluated. The optical properties have been studied in the range of wavelength range (2500–5000) nm. Measurements shows that the optical energy gap decrease from (0.290 to 0.245 eV ) with the increase of thickness, the optical constants indicate significant variation with thickness increment.  

Keywords :

Article: Download PDF   DOI : 10.36106/ijar  

Cite This Article:

Bushra A. Hasan,Issam M. Ibrahim,Salma M. Shaban Effect the Thickness on Structural and Optical Paramteres of PbSe Thin Films Indian Journal of Applied Research, Vol.III, Issue.III March 2013

Number of Downloads : 641

References :