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| Files | Description | Format |
|---|---|---|
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application/pdf  KARDEL-THESIS-2016.pdf (12MB) | (no description provided) |
Description
| Title: | Growth of epitaxial nanoscale columnar copper indium diselinide thin films by introduction of sodium flouride during growth |
| Author(s): | Kardel, Justin Tynes |
| Advisor(s): | Rockett, Angus A. |
| Department / Program: | Materials Science & Engineerng |
| Discipline: | Materials Science & Engr |
| Degree Granting Institution: | University of Illinois at Urbana-Champaign |
| Degree: | M.S. |
| Genre: | Thesis |
| Subject(s): | CuInSe2 (CIS)
Copper indium gallium diselinide (CIGS) Thin Films Epitaxy Nanostructures Nanowires |
| Abstract: | The effect of NaF on the growth of CuInSe2 (CIS) epitaxial thin films by a hybrid sputtering and evaporation method was studied. Low levels of NaF deposition during interruptions of epitaxial growth reduced surface roughness. Larger amounts of NaF resulted in columnar epitaxial films with <112> surface facets on the sides of the columns. X-ray diffraction shows all films to be largely epitaxial, with small amounts of (301)-surface-oriented CIS grains present in films with the highest NaF addition. In the columnar films, a buildup of Na was seen near the substrate/film interface, suggesting that Na is buried during columnar growth. I conclude that the Na plays an integral role in the creation of columns in the films based on the dose of Na added during growth. A mechanism for the transition to growth of columns with critical concentrations of NaF is proposed. |
| Issue Date: | 2016-07-27 |
| Type: | Text |
| URI: | http://hdl.handle.net/2142/92674 |
| Rights Information: | Copyright 2016 Justin Kardel |
| Date Available in IDEALS: | 2016-11-10 |
| Date Deposited: | 2016-08 |
This item appears in the following Collection(s)
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Graduate Dissertations and Theses at Illinois
Graduate Theses and Dissertations at Illinois