2D conductive metal-organic frameworks for electronics and spintronics
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tps://doi.org/10.1007/s11426-020-9791-2
SPECIAL ISSUE: 2020 Emerging Investigator Issue
2D conductive metal-organic frameworks for electronics and spintronics †
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Xiaoyu Song , Jingjuan Liu , Ting Zhang & Long Chen
Department of Chemistry, Institute of Molecular Plus, Tianjin Key Laboratory of Molecular Optoelectronic Science, Tianjin University, Tianjin 300072, China Received May 7, 2020; accepted June 11, 2020; published online July 16, 2020
Two-dimensional (2D) materials showcase great potentials in both fundamental research and technology development, thanks to their unique chemical and physical properties that are usually not available in corresponding bulk counterparts. As an emerging class of 2D materials, 2D conductive metal-organic frameworks (2D c-MOFs) exhibit the characteristics of pre-designable and tunable structures, excellent crystallinity, intrinsic porosity and superior conductivity. During the past decade, 2D c-MOFs have been rapidly developed in electronics, sensors, energy storage devices, etc. In this review, the electrical, magnetic and quantum properties of 2D c-MOFs are surveyed in detail. Their applications in semiconductor, metal, superconductor, topological insulator and porous magnet are highlighted. We envision that the combination of 2D c-MOFs with quantum materials could evoke rich physics, flexible chemistry and potential applications in both electronics and spintronics. conductive metal-organic framework, charge, spin, quantum material Citation:
Song X, Liu J, Zhang T, Chen L. 2D conductive metal-organic frameworks for electronics and spintronics. Sci China Chem, 2020, 63, https://doi.org/ 10.1007/s11426-020-9791-2
1 Introduction It is well known that electrons intrinsically possess both charge and spin degrees of freedom. The employment of the charge degree of freedom promotes the development of multifarious electronic devices including transistors, diodes, and sensors, which play increasingly important roles in our daily lives [1,2]. Many active materials have been explored and integrated into electronic devices, such as carbon materials [3], inorganic 2D materials [4] and organic semiconductors [5]. Metal-organic frameworks (MOFs), composed of both organic linkers and metal nodes, have been applied in catalysis, gas storage/separation, sensor etc. [6]. However, most conventional MOFs have been regarded as insulators with inferior conductivity [7]. Despite of their low
†These authors contributed equally to this work. *Corresponding author (email: [email protected])
charge transport ability, the unique merits of MOFs with great structural and functional tunabilities, crystallinity and intrinsic porosity remain attractive for electronics [8]. Thus, the investigation of electrically conductive MOFs for electronics is in its blossoming development. Typically, 2D materials feature sheet-like structures with large lateral size (exceed 100 nm) and ultrathin thickness (less than 5 nm) [9]. The planar sheets further stack into layered structure with long-range order and anis
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