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Quantifying Multiple Crystallite Orientations and Crystal Heterogeneities in Complex Thin Film Materials

preprint
submitted on 14.05.2019 and posted on 16.05.2019 by Jonathan Ogle, Daniel Powell, Eric Amerling, Detlef Matthias Smilgies, Luisa Whittaker-Brooks

Thin film materials have become increasingly complex in morphological and structural design. When characterizing the structure of these films, a crucial field of study is the role that crystallite orientation plays in giving rise to unique electronic properties. It is therefore important to have a comparative tool for understanding differences in crystallite orientation within a thin film, and also the ability to compare the structural orientation between different thin films. Herein, we designed a new method dubbed the mosaicity factor (MF) to quantify crystallite orientation in thin films using grazing incidence wide-angle X-ray scattering (GIWAXS) patterns. This method for quantifying the orientation of thin films overcomes many limitations inherent in previous approaches such as noise sensitivity, the ability to compare orientation distributions along different axes, and the ability to quantify multiple crystallite orientations observed within the same Miller index. Following the presentation of MF, we proceed to discussing case studies to show the efficacy and range of application available for the use of MF. These studies show how using the MF approach yields quantitative orientation information for various materials assembled on a substrate.

Funding

AFOSR FA9550-18-1-0212

NSF DMR-1332208

Research Corporation for Science Advancement

History

Email Address of Submitting Author

luisa.whittaker@utah.edu

Institution

University of Utah

Country

USA

ORCID For Submitting Author

0000-0002-1130-1306

Declaration of Conflict of Interest

The authors declare no competing financial interest.

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