Optical and structural properties of solution deposited nickel manganite thin films
| Autor: | Elizabeth C. Dickey, Nikolas J. Podraza, Susan Trolier-McKinstry, Heidi M. Schulze, Song Won Ko, D. B. Saint John, Jia Li |
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| Rok vydání: | 2011 |
| Předmět: |
Materials science
business.industry Metals and Alloys chemistry.chemical_element Surfaces and Interfaces Manganite Microstructure Grain size Surfaces Coatings and Films Electronic Optical and Magnetic Materials Nickel Crystallinity Optics chemistry Transmission electron microscopy Materials Chemistry Crystallite Thin film Composite material business |
| Zdroj: | Thin Solid Films. 519:2919-2923 |
| ISSN: | 0040-6090 |
| DOI: | 10.1016/j.tsf.2010.11.088 |
| Popis: | Nickel manganite thin films of interest for microbolometer applications have been prepared using chemical solution and spin spray deposition and studied using transmission electron microscopy to quantify the material crystallinity and spectroscopic ellipsometry to extract the complex dielectric function (e = e1 + ie2) and film microstructure. A parameterization for e over a spectral range from 0.04 to 5.15 eV has been developed to model well-crystallized nickel manganite, and the visible-range critical point features, infrared vibrations, and optical absorption onset have been identified. A multiple sample analysis structural model and procedure has been developed for spin spray deposited films exhibiting complicated void evolutions with thickness. Variations in e and crystallite grain size have been observed as a function of film processing and indicate that the optical properties and microstructural information gained from spectroscopic ellipsometry is useful in process monitoring for this material system. |
| Databáze: | OpenAIRE |
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