Is there diffrence in Bulk Bandgap oof CoO and thin film Bandgap of CoO?
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The bulk bandgap of CoO is distinct from the thin film bandgap of CoO. Research on cobalt oxide thin films synthesized by various methods reveals differences in bandgap values. While bulk CoO typically exhibits a bandgap around 3.24 eV , thin film Co3O4 demonstrates a bandgap ranging between 2.12 and 2.30 eV . Additionally, investigations into cobalt oxide thin films grown on different substrates show variations in optical properties, with specific thin films displaying direct optical transitions at energies of 1.45 and 2.1 eV . These findings underscore the impact of film fabrication techniques and substrate interactions on the bandgap properties of cobalt oxide materials, highlighting the importance of considering thin film characteristics in optoelectronic applications.
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| Papers (4) | Insight |
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| The paper does not address the difference in bandgap between bulk CoO and thin film CoO. | |
| The bulk bandgap of CoO is not specified in the paper. However, the thin film bandgap of CoO is 3.24 eV, consistent with literature values for the CoO phase. | |
12 Citations | Not addressed in the paper. |
5 Citations | Not addressed in the paper. |
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