Electrical semiconduction modulated by light in a cobalt and naphthalene diimide metal-organic framework

Castaldelli, Evandro; Jayawardena, K. D. G. Imalka; Cox, D. C.; Clarkson, Guy J.; Walton, Richard I.; Le-Quang, Long; Chauvin, Jérôme; Silva, S. Ravi P.; Demets, Grégoire Jean-François

doi:10.1038/s41467-017-02215-7

Cited by 54 publications

(42 citation statements)

References 67 publications

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“…The rapid advancements in the development of electronic devices and the need for high-performance energy storage systems are leading our efforts towards the development of alternative materials that will eventually become more efficient than traditional inorganic materials 1 . In this regard, metal–organic frameworks (MOFs) are considered to be prospective candidates for use in energy storage and generation, chemical sensors and photosensitizers due to their unique features, which include self-assembly, ease of structural post-modification, versatile physical properties, and bandgap tuneability 1–5 . MOFs with an electrical conductivity of <10 −7 –10 −10 S cm −1 , were typically contemplated for use as insulators 6 .…”

Section: Introductionmentioning

confidence: 99%

Integration of a (–Cu–S–)n plane in a metal–organic framework affords high electrical conductivity

et al. 2019

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Designing highly conducting metal–organic frameworks (MOFs) is currently a subject of great interest for their potential applications in diverse areas encompassing energy storage and generation. Herein, a strategic design in which a metal–sulfur plane is integrated within a MOF to achieve high electrical conductivity, is successfully demonstrated. The MOF {[Cu 2 (6-Hmna)(6-mn)]·NH 4 } n ( 1 , 6-Hmna = 6-mercaptonicotinic acid, 6-mn = 6-mercaptonicotinate), consisting of a two dimensional (–Cu–S–) n plane, is synthesized from the reaction of Cu(NO 3 ) 2 , and 6,6′-dithiodinicotinic acid via the in situ cleavage of an S–S bond under hydrothermal conditions. A single crystal of the MOF is found to have a low activation energy (6 meV), small bandgap (1.34 eV) and a highest electrical conductivity (10.96 S cm −1 ) among MOFs for single crystal measurements. This approach provides an ideal roadmap for producing highly conductive MOFs with great potential for applications in batteries, thermoelectric, supercapacitors and related areas.

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Section: Introductionmentioning

confidence: 99%

Integration of a (–Cu–S–)n plane in a metal–organic framework affords high electrical conductivity

et al. 2019

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“…Moreover, attaching such additional functionalities can be accomplished without changes of crystal structure, allowing for rational crystal engineering approaches. 23 MOFs have already been successfully fabricated from many organic dyes, including porphyrins, 24 perylene/ naphthalenediimide 25,26 or phthalocyanines. 27 In addition, the knowledge of exact spatial geometry and possibility of isoreticular chemistry (i.e.…”

Section: Introductionmentioning

confidence: 99%

Guest-responsive polaritons in a porous framework: chromophoric sponges in optical QED cavities

Haldar

Joseph

et al. 2020

Chem. Sci.

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“…Apart from 2D MOFs, there are also some 3D MOFs acting as conducting materials. [ 100,134–137 ] In 2009, Takaishi et al synthesized an electroconductive MOF Cu [Cu(pdt) 2 ] (pdt = 2,3‐pyrazinedithiol) by employing electron donors and acceptors as building units. [ 138 ] Its electrical conductivity depended on temperatures and reached 6 × 10 −4 S cm −1 at the temperature of 300 K, which was due to the occurrence of charge tunability between Cu I [Cu III (pdt) 2 ] and Cu II [Cu II (pdt) 2 ].…”

Section: The Design and Synthesis Of Conductive Mofsmentioning

confidence: 99%

Conductive Metal–Organic Frameworks: Design, Synthesis, and Applications

et al. 2020

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fabricated. Combined with controlled synthesis, MOF materials are endowed with abundant various of structures, morphologies, and properties. [8-11] In addition, the as-prepared MOFs can be artificially modified via postsynthetic approaches utilizing their available pores and active sites of metal clusters or linkers. [12,13] As a result, not only the number of MOFs is further increased but also many interesting properties, such as high specific surface areas, tailorable pore sizes, modifiable structures, and properties are endowed with MOFs, which make them become potential candidates in storage/separation, catalysis, sensing, etc. [14,15] Another important application of MOFs is that they can act as conductive materials for electrocatalysis, sensing, and energy conversion, etc. [16-19] The existence of quantitative amounts of active metal centers, permanent porosity, and structural rigidity can facilitate surface contact and mass transfer as well as increase catalysis stability, making MOFs as ideal electrocatalysts. [20-22] In addition, they possess high specific surface areas, tunable bandgaps, and good charge transport properties, which extend their applications in sensing and energy storage. [23] Besides, the morphologies and characteristics of MOFs can be artificially modified to form 1D, 2D, or 3D structures via liquid phase selfassembly, physical/chemical exfoliation, layer-by-layer assembly, etc., promoting their applications in electrochemical devices and electronics. [24-26] With further structural design through postsynthesized modification, the performances of MOFs can be largely improved, facilitating their applications as conductive materials. [27-29] However, most MOFs are intrinsically electrically insulated, which seriously hinders their electrochemical applications. [29] The connected rigid metal ions and redox-inactive organic ligands increase the energy barrier for electron transfer, making them as electrical insulators. To overcome the drawbacks of MOFs, many feasible strategies have been adopted to promote the electron transfer in the structures of MOFs. [27,30-32] The high electrical conductivity of MOFs can be realized by integrating the conjugated planes or 1D chains in the structures, which relies on particular structural designs. [33-37] The conductivity of the MOFs can also be increased via doping with guest Metal-organic frameworks (MOFs) have aroused worldwide interest over the last two decades due to their various excellent properties, such as porosity, modifiability, stability, etc. Based on these unique features, they have been widely exploited for applications from electrocatalysis to electrochemical devices. However, most MOFs are inherently insulated due to the lack of free charge carriers and low-energy barriers for charge transfer, which largely restricts their further electrochemical applications. By imparting MOFs with electrical conductivity, their electrochemical process and catalysis efficiency can be effectively improved. Similarly, their applications in sensors, secon...

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Electrical semiconduction modulated by light in a cobalt and naphthalene diimide metal-organic framework

Cited by 54 publications

References 67 publications

Integration of a (–Cu–S–)n plane in a metal–organic framework affords high electrical conductivity

Integration of a (–Cu–S–)n plane in a metal–organic framework affords high electrical conductivity

Guest-responsive polaritons in a porous framework: chromophoric sponges in optical QED cavities

Conductive Metal–Organic Frameworks: Design, Synthesis, and Applications

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