Characterization of newly synthesized quaternary oxide Li–Cu–Mo–O for photoelectric devices
| Autor: | R.S. Bhavsar, R.B. Kharat |
|---|---|
| Rok vydání: | 2003 |
| Předmět: |
business.industry
Band gap Oxide Analytical chemistry Crystal structure Photoelectrochemical cell Condensed Matter Physics Magnetic susceptibility Tetragonal crystal system chemistry.chemical_compound Optics chemistry Electrical resistivity and conductivity X-ray crystallography General Materials Science business |
| Zdroj: | Materials Chemistry and Physics. 80:143-149 |
| ISSN: | 0254-0584 |
| Popis: | A new quaternary oxide, Li2CuMo2O8, was synthesized by the solid-state reaction between corresponding oxides and characterized by chemical analysis, X-ray diffraction, electrical conductivity, diffuse reflectance spectra and magnetic study. It crystallizes in tetragonal symmetry with lattice parameters, a0=16.658 A and c0=26.914 A. It is an n-type semiconducting material having bandgap of 1.54 eV. Magnetic susceptibility measurement indicate that the compound is anti-ferromagnetic having Cm=3.707 and qa=−15. The material in the form of hydrogen-annealed pellet was used as a photoanode in electrochemical photovoltaic (ECPV) cell. Flat band potential was located at −0.43 V. ECPV cell parameters such as conversion efficiency (η) and fill factor were found to have values as 0.81% and 0.397, respectively. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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