| Titre : | Design of Spin Coater for Thin Film Growth |
| Auteurs : | Mohamed Abdeladhim REDJIMI, Auteur ; Noureddine Sengouga, Directeur de thèse |
| Type de document : | Monographie imprimée |
| Année de publication : | 2025 |
| Format : | 1 vol. (60 p.) |
| Langues: | Anglais |
| Langues originales: | Anglais |
| Mots-clés: | Spin coating ; Thin film deposition ; Materials characterization ; Low-cost fabrication ; Educational technology |
| Résumé : |
This dissertation presents the design, fabrication, and characterization of a cost-effective,
Arduino-based spin coater for thin film deposition. The system utilizes commercially available components, 3D-printed parts, and open-source software to achieve precise control over spin speed and deposition time. The performance of the spin coater was validated through the deposition of tin oxide (SnO2) thin films. X-ray diffraction (XRD) analysis confirmed the formation of crystalline SnO2 with a tetragonal rutile structure. Ultraviolet-visible (UV-Vis) spectroscopy revealed high optical transparency in the visible region and a band gap of approximately 3.88 eV. The results demonstrate the capability of the developed spin coater to produce high-quality SnO2 thin films suitable for various applications, providing a viable and accessible alternative to expensive commercial systems, particularly for resource-constrained research and educational settings. This work contributes to the dissemination of thin film technology, fostering innovation and experimental inquiry in materials science. |
| Sommaire : |
Dedications i
Acknowledgments ii Abstract iii List of Figures vii List of Tables viii List of Abbreviations ix General Introduction 1 I Theoretical Background and Literature Review 4 I.1 Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 I.2 Thin Films Technology . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 I.2.1 Definition of Thin Films . . . . . . . . . . . . . . . . . . . . . . . . . 4 I.2.2 Thin Films Deposition Techniques . . . . . . . . . . . . . . . . . . . . 5 I.2.3 Applications of Thin Films . . . . . . . . . . . . . . . . . . . . . . . . 10 I.3 Spin Coating Technique . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 I.3.1 Definition and Working Principle . . . . . . . . . . . . . . . . . . . . 10 I.3.2 Process Parameters . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11 I.3.3 Challenges in Spin Coater Design . . . . . . . . . . . . . . . . . . . . 12 I.3.4 Review of Recent Advances in Homemade Spin Coaters Fabrication . . 12 I.3.5 Performance Evaluation Methods for Spin Coaters . . . . . . . . . . . 14 I.4 Tin Oxide (SnO2) Thin Films . . . . . . . . . . . . . . . . . . . . . . . . . . . 14 I.4.1 Properties of Tin Oxide (SnO2) Thin Films . . . . . . . . . . . . . . . 14 I.4.2 Applications of SnO2 Thin Films . . . . . . . . . . . . . . . . . . . . 15 II Design and Implementation of the Homemade Spin Coater 16 II.1 Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16 II.2 Device Components . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16 iv CONTENTS II.3 Mechanical Design . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20 II.3.1 3D Printed Components . . . . . . . . . . . . . . . . . . . . . . . . . 20 II.4 Device Construction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24 II.4.1 Wiring Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24 II.4.2 Mechanical Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . 25 II.5 System Architecture . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28 II.6 Working Principle of Homemade Spin Coater and User Interaction . . . . . . . 29 II.7 Cost Analysis . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34 II.7.1 Component Cost Breakdown . . . . . . . . . . . . . . . . . . . . . . . 34 II.7.2 Comparison with Commercial Systems . . . . . . . . . . . . . . . . . 34 II.7.3 Cost-Performance Analysis . . . . . . . . . . . . . . . . . . . . . . . 36 II.7.4 Long-term Cost Considerations . . . . . . . . . . . . . . . . . . . . . 36 II.8 System Limitations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37 II.9 Future Improvements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37 III Experimental Study of SnO2 Thin Films 38 III.1 Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38 III.2 Experimental Procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38 III.3 Results and discussions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39 III.3.1 Structural properties . . . . . . . . . . . . . . . . . . . . . . . . . . . 39 III.3.2 Optical properties . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42 Conclusion 45 Bibliography 47 Appendices 55 A Appendix 56 B Appendix 60 |
Disponibilité (1)
| Cote | Support | Localisation | Statut |
|---|---|---|---|
| MPHY/665 | CDROM | bibliothèque sciences exactes | Consultable |
