Two‐Dimensional Metal‐Organic Frameworks Towards Spintronics

Abstract

The intrinsic properties of predesignable topologies and tunable electronic structures, coupled with the increase of electrical conductivity, make two‐dimensional metal–organic frameworks (2D MOFs) highly prospective candidates for next‐generation electronic/spintronic devices. In this Minireview, we present an outline of the design principles of 2D MOF‐based spintronics materials. Then, we highlight the spin‐transport properties of 2D MOF‐based organic spin valves (OSVs) as a notable achievement in the progress of 2D MOFs for spintronics devices. After that, we discuss the potential for spin manipulation in 2D MOFs with bipolar magnetic semiconductor (BMS) properties as a promising field for future research. Finally, we provide a brief summary and outlook to encourage the development of novel 2D MOFs for spintronics applications.

Magnetic Signature in Graphene Using Adsorbed Metal–Organic Networks

“…6−10 By carefully designing the ligands, one can use OSS to synthesize a plethora of 2D arrays where metal atoms are organized into a specific shape with a well-defined distribution and physical properties. 11,12 Following such an approach, 2D metal−organic networks (MONs) have been prepared on various substrates such as transition metals (TMs), semiconductors (SCs) including graphene, and insulator (IN) surfaces 13,14 as well as on stacked heterostructures (TM/TM, SC/TM, IN/TM, etc.). 15,16 The electronic and magnetic properties of metal atoms in MONs strongly depend on the metal−ligands interactions within the complexes and are also significantly influenced by their subsequent interactions with the substrate.…”

“…The creation of a highly ordered array of atom-based magnets remains a key element in the development of ultimate spintronics devices. − There are a few examples where a controlled deposition of magnetic atoms on a surface has been performed, but where the temperature has been shown to play a central role on the atomic arrangement stability and the lifetime of magnetic properties. , In contrast, on-surface synthesis (OSS) represents one of the most promising approaches to generate extended two-dimensional (2D) materials where the central coordination sites are metallic atoms. − By carefully designing the ligands, one can use OSS to synthesize a plethora of 2D arrays where metal atoms are organized into a specific shape with a well-defined distribution and physical properties. , Following such an approach, 2D metal–organic networks (MONs) have been prepared on various substrates such as transition metals (TMs), semiconductors (SCs) including graphene, and insulator (IN) surfaces , as well as on stacked heterostructures (TM/TM, SC/TM, IN/TM, etc. ). , …”

A General Synthesis of Nanostructured Conductive Metal–Organic Frameworks from Insulating MOF Precursors for Supercapacitors and Chemiresistive Sensors

“…The realization of electrical conductivity in porous metalorganic frameworks (MOFs) enables them with a broad spectrum of potential applications in energetic and elec-tronic devices, such as supercapacitors, [1] thermoelectrics, [2] catalysis, [3] chemiresistive sensors, [4] spintronics, [5] optoelectronics and superconductors, [6] which were previously unimaginable with the insulating MOFs. [7] The layer-stacked two-dimensional conjugated MOFs (2D c-MOFs) with in-plane extended π-conjugation have recently attracted intensive attention due to their high electrical conductivity and tailorable electronic band gaps.…”

Eine allgemeine Strategie zur Synthese von nanostrukturierten leitfähigen MOFs aus isolierenden MOF‐Vorläufern für Superkondensatoren und chemiresistive Sensoren

“…Die Realisierung elektrischer Leitfähigkeit in porösen metallorganischen Gerüstverbindungen (MOFs) eröffnet ihnen ein breites Spektrum potenzieller Anwendungen in energetischen und elektronischen Geräten, wie z. B. Superkondensatoren, [1] Thermoelektrika, [2] Katalysatoren, [3] chemiresistiven Sensoren, [4] spintronischen und optoelektronischen Bauteilen [5] und Supraleitern, [6] welche mit isolierenden MOFs unvorstellbar waren. [7] Die geschichteten zweidimensionalen konjugierten MOFs (2D c-MOFs) mit in der Ebene erweiterter π-Konjugation haben in letzter Zeit aufgrund ihrer hohen elektrischen Leitfähigkeit und maßgeschneiderten elektronischen Bandlücken [8] große Aufmerksamkeit auf sich gezogen.…”