6533b82ffe1ef96bd1296280

RESEARCH PRODUCT

Characterization and Investigation of NLO Properties of some Selected Electrodeposited Polythiophenes

Viviana Figa'J LucB KulykM BaitoulB. Sahraoui

subject

band gap flat band potential SHG THG NLO properties

description

In this work we study the electronic properties of ClO− doped polythiophenes and discuss the nonlinear optical properties of these organic 4 compounds galvanostatically electrodeposited on ITO glasses. The investigation on the electronic properties (band gap, flat band potential) was performed by means of a non-destructive optical technique, photocurrent spectroscopy (PCS). The investigation on the nonlinear optical response was carried out by means of second and third harmonic generation (SHG and THG) measurements. In particular, the effect of the oxidation state of the polymeric films was studied by comparing the NLO response of oxidized and reduced polythiophenes. Reduced poly- meric films show higher values of the second (χ h2i) and third (χ h3i) order nonlinear optical susceptibilities

yearjournalcountryeditionlanguage
2009-04-13
http://hdl.handle.net/10447/76541