Electrochromic 2,5-Dihydroxyterephthalic Acid Linker in Metal−Organic Frameworks

Autor(en)

Hidetsugu Shiozawa, Zuzana Melnikova, Zdeněk Bastl, Herwig Peterlik, Martin Kalbáč, Otakar Frank

Abstrakt

Metal–organic frameworks (MOFs) are diverse in color owing to a large variety of molecular structures. Herein, electrochromism of M-MOF-74 (M = Mg, Mn, Co or Zn) is reported, which is a honeycomb nano-framework in which hexagonally packed 1D arrays of metal cations are coordinated with 2,5-dihydroxyterephthalic (dhtp) acid linker. Raman spectroscopy upon electrochemical doping combined with density functional theory calculations reveals redox reactions of the linker while the metal cations stay divalent as probed by X-ray photoemission spectroscopy (XPS). Excellent adhesion of the MOFs to glass allows the synthesis of quality thin films to be implemented into electrochromic devices that exhibit promising color contrast and durability.

Organisation(en)

Elektronische Materialeigenschaften, Dynamik Kondensierter Systeme

Externe Organisation(en)

Czech Academy of Sciences

Journal

Advanced Photonics Research

Band

3

Anzahl der Seiten

7

ISSN

2699-9293

DOI

https://doi.org/10.1002/adpr.202100219

Publikationsdatum

02-2022

Peer-reviewed

Ja

ÖFOS 2012

103040 Photonik, 103018 Materialphysik

Link zum Portal

https://ucrisportal.univie.ac.at/de/publications/42ec0b21-d35b-4fb9-a233-6b8eeaa7d9ad