Journal
APPLIED SURFACE SCIENCE
Volume 527, Issue -, Pages -Publisher
ELSEVIER
DOI: 10.1016/j.apsusc.2020.146603
Keywords
Atomic layer deposition; Molecular layer deposition; Thin Films; Metal Organic Frameworks; Eu; Luminescence; Solvent-free
Categories
Funding
- FCT/MEC [UIDB/50011/2020, UIDP/50011/2020]
- FEDER under the PT2020 Partnership Agreement
- CICECO - Aveiro Institute of Materials [BPD/UI89/5196/2017]
Ask authors/readers for more resources
Crystalline Eu3+-2-aminoterephthalic acid thin (ca. 22 mu m) films have been prepared by Atomic/Molecular Layer Deposition (ALD/MLD) on Si/SiO2 substrates. The beta-diketonate complex precursor europium(III)-tris(2,2,6,6-tetramethyl-3,5-heptanedionate, Eu(thd)(3), was reacted with 2-aminoterephthalic acid, NH(2)TA. X-ray diffraction indicates the films deposited at 180 degrees C exhibit the structure of UiO-66, a Zr-bearing metal organic framework. Scanning electron microscopy and atomic force microscopy show that the prepared films are very smooth and uniform, essentially defect-free, with a surface topography comprising evenly distributed hills without sharp edges, well adherent to the substrate. Attenuated total reflectance fourier transform infrared witnesses the presence of the organic ligand in the film and its coordination to the metal. X-ray photoelectron spectroscopy confirms the trivalent Eu oxidation state. Due to their thermal stability, fair volatility and facile synthesis, beta-diketonate complexes have been shown to be suitable ALD precursors for preparing high-quality lanthanide organic framework thin films, enabling a single-step gas phase method for the synthesis of luminescent films.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available