Article
Nanocolumnar growth of thin films deposited at oblique angles: Beyond the tangent rule
Author/s | Álvarez Molina, Rafael
López Santos, Carmen Parra Barranco, Julián Rico-Gavira, Víctor Joaquín Barranco Quero, Ángel Cotrino Bautista, José Rodríguez González-Elipe, Agustín Palmero Acebedo, Alberto |
Publication Date | 2014 |
Deposit Date | 2018-01-19 |
Published in |
|
Abstract | The growth of nanostructured physical vapor deposited thin films at oblique angles is becoming a hot topic for the development of a large variety of applications. Up to now, empirical relations, such as the so-called tangent ... The growth of nanostructured physical vapor deposited thin films at oblique angles is becoming a hot topic for the development of a large variety of applications. Up to now, empirical relations, such as the so-called tangent rule, have been uncritically applied to account for the development of the nanostructure of these thin films even when they do not accurately reproduce most experimental results. In the present paper, the growth of thin films at oblique angles is analyzed under the premises of a recently proposed surface trapping mechanism. The authors demonstrate that this process mediates the effective shadowing area and determines the relation between the incident angle of the deposition flux and the tilt angle of the columnar thin film nanostructures. The analysis of experimental data for a large variety of materials obtained in our laboratory and taken from the literature supports the existence of a connection between the surface trapping efficiency and the metallic character of the deposited materials. The implications of these predictive conclusions for the development of new applications based on oblique angle deposited thin films are discussed. |
Funding agencies | Junta de Andalucía Ministerio de Ciencia e Innovación (MICIN). España |
Project ID. | P09-CTS- 5189
FQM-6900 CSD2008-00023 MAT2010-21228 MAT2010-18447 |
Citation | Álvarez Molina, R., López Santos, C., Parra Barranco, J., Rico-Gavira, V.J., Barranco Quero, Á., Cotrino Bautista, J.,...,Palmero Acebedo, A. (2014). Nanocolumnar growth of thin films deposited at oblique angles: Beyond the tangent rule. Journal of Vacuum Science and Technology B: Microelectronics and Nanometer Structures, 32 |
Files | Size | Format | View | Description |
---|---|---|---|---|
Nanocolumnar growth of thin ... | 496.1Kb | [PDF] | View/ | |