Conjugated Poly Thiophene Benzylidene complex (PTB) has been synthesized by a simple condensation method. Condensation of thiophene with benzaldehyde catalyzed by POCl3 in 1,4 dioxane was carried out for 24 hours and characterized by UV-Vis, FTIR,NMR,XRD,SEM and DSC. The result reveals that the yield of PTB is quite good using POCl3 in single step polymerization. The results obtained with optical measurements and analyzed by different models. The surface morphology clearly shows the petal like structure of the material (PTB) with porous network consisting of nano sheets which are interconnected with each other. XRD pattern confirms that the synthesized material is in nano form. From optical absorption, the band gap is calculated and observed to be around 2.78 eV and hence it can be used in optoelectronic applications as a good semi-conducting material with conductivity 1.34×10-4 S/cm
