Abstract
Nanoparticles of cadmium peroxide (CdO2) were immobilized in poly 2,2 bithiophene (PBTh) to build photoactive inorganic/organic interfaces (I/O/I). Studies indicated that the CdO2 initially immobilized in the organic polymer partially decomposed to a low band gap CdO. Therefore we refer to this mixture as CdO2/CdO. The CdO2/CdO/PBTh assemblies were subjected to optical and photoelectrochemical investigations in aqueous electrolytes containing acetate, nitrate, or phosphate. The equilibrium mixture of CdO2/CdO influenced the optical conductivity and dielectric contents of the assemblies. Furthermore, O2 played an important role in the charge separation and transfer processes. The effects of an applied magnetic field were investigated and reported. The results were explained on the basis of formation of hybrid sub-bands due to band alignments between the assembly components. The photo-induced charge generation of PBTh was improved by occlusion of CdO2 in the polymer as was evident by the greater photocurrent generated by CdO2/CdO/PBTh than that generated by PBTh.
Highlights
Transition metal peroxides can be used as a source of oxygen in organic synthesis
Magnetic excitation was created by orienting the CdO2/cadmium oxide (CdO)/PBTh-coated FTO parallel to the magnetic field generated by two circular disk magnets with power of 0.200 T and facing the light source (Figure 1)
The absorption spectra of the CdO2/CdO/PBTh assembly and of the host polymer PBTh were studied in a wavelength range of 320-800 nm
Summary
Transition metal peroxides can be used as a source of oxygen in organic synthesis. They can be used in sensor building, and for catalysis (Zhou X.P. et al, 2003). S. et al 2007, Wan A. et al, 2005, Osikowiez W. et al 2007) The goal of this investigation was to decipher the alignment of energy bands at organic/organic or inorganic/organic interfaces. Cadmium oxides have excellent optical and optoelectrical characteristics They have selective catalytic properties that make them suitable for use in industrial capacities such as the photodegradation of toxic organic compounds, dyes, pigments and other environmental pollutants (Karunakaran C. et al, 2009, Nezamzadeh-Ejhieh A. et al, 2011, and Saravanan R et al, 2011). We explored the possible effects that can be caused by applying a magnetic field to the assembly
Sign-in/Register to view highlights & summary 
Published Version (
Free)
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call