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SilverOX2_MG_16June20-Final.pdf (7.95 MB)

Highly Luminescent Silver-Based MOFs: Scalable Eco-Friendly Synthesis Paving the Way for Photonics Sensors and Electroluminescent Devices

submitted on 09.07.2020 and posted on 10.07.2020 by Mario Gutierrez, Cristina Martín, Barbara Souza, Mark Van der Auweraer, Johan Hofkens, Jin-Chong Tan

Luminescent multifunctional nanomaterials are important because of their potential impact on the development of key technologies such as smart luminescent sensors and solid-state lightings. To be technologically viable, the luminescent material needs to fulfil a number of requirements for integration into real-world devices: facile and cost-effective fabrication, a high quantum yield, structural robustness, and long-term chemical stability. To achieve these requirements, an eco-friendly and scalable synthesis of a highly photoluminescent, multistimuli responsive and electroluminescent silver-based metal-organic framework (Ag-MOF), termed “OX-2” was developed. The high synthetic yield (at least 10 g of purely crystalline OX-2 via one pot reaction), together with its exceptional photophysical and mechanically resilient properties that can be reversibly switched by temperature and pressure make this material stood out over other competing luminescent materials. The potential use of OX-2 MOF as a good electroluminescent material was tested by constructing a proof-of-concept MOF-LED (Light Emitting Diode) device, further contributing to the rare examples of electroluminescent MOFs known to date. The results reveal the huge potential for exploiting the highly luminescent Ag MOF, where OX-2 may serve as a multitasking platform to engineer innovative photonic technologies.


ERC Consolidator Grant PROMOFS (771575)

Research Foundation-Flanders (FWO, grant nos. G.0B39.15 and G098319N)

FWO postdoctoral fellowships to C.M. (grant nos. 12J1719N and 12J1716N)

KU Leuven Research Fund (C14/15/053)

Methusalem (CASAS2, Meth/15/04)

Hercules Foundation (HER/11/14)

Belgian Federal Science Policy Office (IAP-VII/05)


Email Address of Submitting Author


University of Oxford, Department of Engineering Science


United Kingdom

ORCID For Submitting Author


Declaration of Conflict of Interest

Competing financial interests: M.G. and J.C.T. have financial interests in the materials technology described in this study, through patenting of the Ag-MOFs for commercial exploitation.