Kombinierte Assemblierung von harten und weichen Materialien, von hierarchisch geordneten Nanopartikel/Block-copolymer-Verbundmaterialien zu nichtflüchtigen Speicherbauelementen

• Antragsteller: Professor Dr. Marcus Halik
• Fachliche Zuordnung: Polymermaterialien ; Präparative und Physikalische Chemie von Polymeren
• Förderung: Förderung von 2014 bis 2019
• Projektkennung: Deutsche Forschungsgemeinschaft (DFG) - Projektnummer 265245389

• Erstellungsjahr: 2020

Zusammenfassung der Projektergebnisse

The project CASHMemory gained important scientific knowledge and progress on core-shell nanoparticles, block-copolymers, their hybrids as phase selective doped composites and has demonstrated functional memory devices. The highlights of the project can be attributed to work package 1 - the fundamental scientific questions of the materials and in particular the interfaces. We have demonstrated the presence of nanophases in PEO rich PS-b-PEO block-copolymer and the ability to selectively load corresponding NPs in the phases. We have contributed to the systems of mixed self-assembled monolayer on NP surfaces with deep insight in morphology of molecular assemblies, molecular communication (optical properties) and their dynamics. The devices – in particular the floated gate memories – exhibit good and reliable performance but for practical application the system of NP-BCP occurs to sensitive in terms of long term stability (flipping) and process control. The gained knowledge on interaction of NP-surface with corresponding polymer matrix led to the development of surprising and novel directions. The project has inspired and has delivered fundamentals to design core-shell nanoparticles (with magnetic core) to remediate liquid hydrocarbons and/or solid nanoplastic pollution from water with as simple but very smart approach. These findings might have an enormous impact in sustainable technology in environmental protection.

Projektbezogene Publikationen (Auswahl)

• “Blockcopolymer / Nanoparticle Hybrid Systems” EAM Meeting 2015, Kloster Banz, Germany
  J. Kirschner
  
• “Characterization of phase separated Nanoparticle / PS-b-PEO hybrids in Organic Thin Film Memory Transistors” E-MRS Spring Meeting 2015, Lille, France
  J. Kirschner
  
• “Influence of region selective nanoparticle enrichment on block copolymer phase separation” E-MRS Spring Meeting 2015, Lille, France
  T. Rejek
  
• “Self-Assembled Nanoparticle / PS-b-PEO Block Copolymer Hybrids and their Application as Dielectric Layers in OTFMTs” MRS Spring Meeting 2015, San Francisco, USA
  J. Kirschner
  
• „Block Copolymer Hybrid Dielectrics in Organic Memory Transistors” Dissertation FAU Erlangen Nürnberg 12/2017
  J. Kirschner
  
• “Memory Effect of Self-Assembled PS-b-PEO Block Copolymer Films with Selectively Embedded Functionalized TiO2 Nanoparticles”, Advanced Materials Interfaces, 4 (2017) 1700230
  Kirschner, Johannes; Will, Johannes; Rejek, Tobias J.; Portilla, Luis; Berlinghof, Marvin; Schweizer, Peter; Spiecker, Erdmann; Steinrück, Hans‐Georg; Unruh, Tobias & Halik, Marcus
  
• “Phase selective distribution of nanoparticles in the block copolymer matrix and their application to the organic thin film memory transistor” Particle Based Materials Symposium, 2018, Erlangen, Germany
  H. Park
  
• “Selective enrichment of nanoparticles in the amphiphilic block copolymer matrix by tuning the surface chemistry of nanoparticles” E-MRS Spring Meeting 2018, Strasbourg, France
  H. Park
  
• „Mixed Organic Ligand Shells: Controlling the Nanoparticle Surface Morphology toward Tuning the Optoelectronic Properties” Small, 16 (2020) 1903729
  Henkel, Christian; Wittmann, Judith E.; Träg, Johannes; Will, Johannes; Stiegler, Lisa M. S.; Strohriegl, Peter; Hirsch, Andreas; Unruh, Tobias; Zahn, Dirk; Halik, Marcus & Guldi, Dirk M.
  
• „Multifunctional and Tunable Surfaces Based on Pyrene Functionalized Nanoparticles” Advanced Materials Interfaces, 6 (2019) 1801930
  Wittmann, Judith E.; Stiegler, Lisa M. S.; Henkel, Christian; Träg, Johannes; Götz, Klaus; Unruh, Tobias; Zahn, Dirk; Hirsch, Andreas; Guldi, Dirk & Halik, Marcus
  
• „Superoleophilic Magnetic Iron Oxide Nanoparticles for Effective Hydrocarbon Removal from Water” Advanced Functional Materials, 29 (2019) 1805742
  Sarcletti, Marco; Vivod, Dustin; Luchs, Tobias; Rejek, Tobias; Portilla, Luis; Müller, Lukas; Dietrich, Hanno; Hirsch, Andreas; Zahn, Dirk & Halik, Marcus
  
• „Buried Microphase Separation by Dynamic Interplay of Crystallization and Microphase Separation in Semicrystalline PEO-Rich PS- b-PEO Block Copolymer Thin Films” Macromolecules 53 (2020) 5604–5613
  Rejek, Tobias; Schweizer, Peter; Joch, Daniel; Portilla, Luis; Spiecker, Erdmann & Halik, Marcus