| AVS 60th International Symposium and Exhibition | |
| Thin Film | Monday Sessions |
| Session TF+AS+SE+SS-MoA |
| Session: | ALD/MLD Surface Reactions, Precursors, and Properties |
| Presenter: | K. Gregorczyk, CIC nanoGUNE, Spain |
| Authors: | K. Gregorczyk, CIC nanoGUNE, Spain L. Zhang, CIC nanoGUNE, Spain M. Knez, CIC nanoGUNE, Spain |
| Correspondent: | Click to Email |
The incorporation of transition metals into organic materials has lead to a variety of unusual or improved physical and chemical properties. Of particular interest is the use of inexpensive biological materials as substrates or scaffolds due to their naturally occurring, and often complex, morphologies. For simple coatings atomic layer deposition (ALD) has been proven to be the technique of choice due to its low reaction temperatures, monolayer thickness control, and extreme conformality. Furthermore, recent modifications to this technique have allowed infiltration of the metal-organic precursors into a variety of organic materials including spider silk[1], porphyrins [2], and polytetrafluoroethylene (PTFE)[3], leading to a more detailed understanding of the reaction between these organic substrates and the metal-organic precursors. Using this technique, we present work studying the interaction of trimethyl aluminum and diethyl zinc with simple sugar molecules (monomers, dimers, and polymers). We report chemical and mechanical modifications to the simple monosaccride glucose, the polysaccride sucrose, and the polymer cellulose. Reaction detail differences between the simple monomer molecules (glucose) and their corresponding polymers (cellulose) will be discussed though mass spectrometry, Raman spectrscopy, and UV-vis. Mechanical and chemical changes to these materials will also be presented.
1. Lee, SM et al. Science, 324, 488 (2009)
2. Zhang, L, et al. Angew. Chem. Int. Ed., 48 (2009)
3. Lee, SM, et al. Adv. Funct. Mater, 21 (2011)