Amorphous-to-crystalline transition and photoluminescence switching in guest-absorbing metal-organic network thin films

: Amr Ghazy, Muhammad Safdar, Mika Lastusaari, Maarit Karppinen

Publisher: ROYAL SOC CHEMISTRY

: 2020

: Chemical Communications

: CHEMICAL COMMUNICATIONS

: CHEM COMMUN

: 56

: 2

: 241

: 244

: 4

: 1359-7345

: 1364-548X

DOI: https://doi.org/10.1039/c9cc08904g

: https://research.utu.fi/converis/portal/detail/Publication/44982313

An amorphous metal-organic framework (aMOF) is an oxymoron as the porosity derived from the ordered network of the metal and organic moieties is the main characteristic of conventional crystalline MOFs. However, amorphous metal-organic materials can be synthesized from gaseous precursors through atomic/molecular layer deposition (ALD/MLD). We demonstrate an exciting interplay between luminescence properties and amorphous-to-crystalline transition realized upon water absorption in ALD/MLD aMOF films.

c9cc08904g.pdf