Thin films of self-assembled materials by dip-coating technique

Thumbnail Image
Journal Title
Journal ISSN
Volume Title
School of Chemical Technology | Doctoral thesis (article-based) | Defence date: 2024-01-19
Degree programme
71 + app. 33
Aalto University publication series DOCTORAL THESES, 214/2023
Self-assembly processes, which manifest in various natural phenomena, involve the constituents merging to construct intricate and well-structured material systems. Motivated by nature's elegance, synthetic self-assembled materials have experienced remarkable progress over the past two decades, facilitating the creation of structures spanning diverse length scales, ranging from the molecular level to larger macromolecular systems and microscale particles. An essential determinant for the practical application of self-assembled materials lies in the ability to fine-tune their self-assembly behavior, within which various complex physicochemical processes can take place. Among the techniques for depositing self-assembled thin films, dip-coating emerges as a particularly promising candidate. It shares the simplicity and expediency of drop-casting and spin-coating, while retaining the exceptional control over film thickness characteristic for layer-by-layer deposition. Moreover, it offers unrestricted substrate shape and size as well as permits the minimization of solution waste. Dip-coating, therefore, appears as an ideal approach for generating self-assembled thin films. Nevertheless, research efforts in this area remain limited, and a thorough comprehension of the interplay between dip-coating parameters and self-assembly behavior remains elusive. This thesis attempts to fill this knowledge gap by expanding the scope of materials combining dip-coating and self-assembly process. The thesis begins with an extensive review of the dip-coating technique, followed by distinct chapters exploring the self-assembly of various materials, including block copolymers, breath figure, and virus nanoparticles. Within these chapters, the thesis strives to establish systematic relationship between dip-coating parameter and the behavior of the specific material, thereby providing valuable insights that can steer future research in this field.
Supervising professor
Vapaavuori, Jaana, Prof., Aalto University, Department of Chemistry and Materials Science, Finland
Thesis advisor
Vapaavuori, Jaana, Prof., Aalto University, Department of Chemistry and Materials Science, Finland
thin films, self-assembly, dip-coating, block copolymer, breath figure, virus nanoparticle
Other note
  • [Publication 1]: Hoang M. Nguyen; Ariane V. Mader; Swarnalok De; Jaana Vapaavuori: Understanding nanodomain morphology formation in dip-coated PS-b-PEO thin films, Nanoscale Advances, 2021, 3, 4996-5007.
    DOI: 10.1039/D1NA00263E View at publisher
  • [Publication 2]: Hoang M. Nguyen; Ariane V. Mader; Swarnalok De; Fevzihan Basarir; Jaana Vapaavuori: Controlling the Self-Assembly of Hierarchical PS-b-P4VP Structures Prepared by Dip-Coating and Emulsion Breath Figure Techniques, ChemistrySelect, Volume 8, issue 13 2023, 8, e202300797.
    DOI: 10.1002/slct.202300797 View at publisher
  • [Publication 3]: Swarnalok De; Hoang M. Nguyen; Ville Liljeström; Kristiina Mäkinen; Mauri A. Kostiainen; Jaana Vapaavuori: Potato virus A particles – A versatile material for self-assembled nanopatterned surfaces, Virology, 2023, 578, 103-110.
    DOI: 10.1016/j.virol.2022.11.010 View at publisher
  • [Publication 4]: Swarnalok De; Hoang M. Nguyen; Fangxin Zou; Fevzihan Basarir; Maryam Mousavi; Kristiina Mäkinen; Mauri A. Kostiainen; Jaana Vapaavuori: Bio-templated silver nanopatterns for photothermal and antifogging coatings (Submitted to Advanced Materials Interfaces on Oct 3rd, 2023)