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FIZIKA A 18 (2009) 2 , 81-88
 
BOUBAKER POLYNOMIALS EXPANSION SCHEME (BPES)-RELATED OPTICAL PROPERTIES OF
b-SnS2 SPRAYED LAYERS
C. KHÉLIA, K. BOUBAKER and M. AMLOUK
UPDS, Faculté des Sciences de Tunis, Campus Universitaire, 2092 Tunis
Received 21 September 2008; Revised manuscript
received 31 July 2009
Accepted 2 September 2009 Online 18 September 2009
b-SnS2 layers have been prepared on glass substrates by spray
pyrolysis technique at temperature Ts » 270°C. The transmission-reflectance
spectra, subjected to an original BPES-related protocol, led to accurate
calculations of the effective absorptivity. The knowledge of lastly obtained
values of the thermal diffusivity allowed the determination of the opto-thermal
expansivity yAB as a guide to evaluating the conjoint optical and thermal
performances of the as-grown layers.
PACS numbers: 78.20.Ci, 81.15.Rs, 85.60.-q
UDC 538.958
Keywords: effective absorptivity, spray pyrolysis, opto-thermal expansivity
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