Giant Enhancement of Carrier Mobility in Bimetallic Coordination Polymers

Dhara, Barun; Kumar, Vikash; Gupta, Kriti; Jha, Plawan Kumar; Ballav, Nirmalya

doi:10.1021/acsomega.7b00931

Cited by 9 publications

(7 citation statements)

References 40 publications

(81 reference statements)

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The I – V curves of the tested samples are shown in Figure S17 in the Supporting Information. The results reveal that the conductivity of the materials are in the range of 10 −7 –10 −10 S cm −1 , which are comparable with some well‐designed and doped MOFs . These results further suggest that these host–guest MOFs are potential and highly tunable donor–acceptor materials.…”

supporting

confidence: 67%

Rational Construction of Highly Tunable Donor–Acceptor Materials Based on a Crystalline Host–Guest Platform

et al. 2018

View full text Add to dashboard Cite

Organic donor-acceptor (D-A) systems based on charge-transfer complexes interactions have emerged as an attractive class of materials due to their potential applications in optoelectronic devices. [1] Thanks to the well-developed design and synthesis technology, the characteristics of organic molecules could be well tuned, allowing for the design of various charge-transfer systems. [1c,2] However, since the assembly of D and A species toward donor-acceptor system is complicated and usually affected by many factors, such as solvents or temperature, it is usually difficult to precisely predict and control the arrangement of these molecules in the long-range order for the attainment of the required performance of complexes. [3] Therefore, it is still a challenge for the controlled construction of organic charge-transfer complexes featuring well-illustrated principles of rational construction and modulated performance, and the regulation of D and A species arrangement could be a key factor.Considering the well-defined arrangement of species in molecular level, the crystalline host-guest system could be an ideal platform for the rational construction of donor-acceptor system. As a class of well-developed crystalline material, metalorganic frameworks (MOFs) offer a new age for materials due to their excellent chemical/physical properties and potential applications in energy storage, [4] separation, [5] biomedicine, [6] sensing, [7] catalysis, [8] and so on. In addition, it is straightforward to modulate the crystalline structures as well as the inorganic-organic hybrid composition of MOFs through the choice of abundant organic components. Therefore, the surface chemistry of the pores in MOFs could be readily modulated based on rational utilization of organic building blocks. In addition, ordered arrangements of guest species could be achieved in MOFs as a host by taking advantage of the welldefined porous frameworks. More importantly, as the assembly of MOFs is based on the coordination bonds between metal ions and organic linkers, their construction usually shows more predictable trend in comparison to the self-assembly process of pure organic molecules through relatively weak supramolecular interactions. All these advantages mentioned above make MOFs an ideal host platform for the fabrication and systematic investigation of host-guest systems for various applications.Organic donor-acceptor systems have attracted much attention due to their various potential applications. However, the rational construction and modulation of highly ordered donor-acceptor systems could be a challenge due to the complicated self-assembly process of donor and acceptor species. Considering the well-defined arrangement of species at the molecule level, a crystalline host-guest system could be an ideal platform for the rational construction of donor-acceptor systems. Herein, it is shown how the rational construction of highly tunable donor-acceptor materials can be achieved based on a crystalline host-guest platform. Within the well-e...

show abstract

supporting

confidence: 67%

Rational Construction of Highly Tunable Donor–Acceptor Materials Based on a Crystalline Host–Guest Platform

et al. 2018

View full text Add to dashboard Cite

show abstract

“…Such gap-states might reduce the electronic band gap and facilitate electron transport in the thin lm. 44,45 To investigate the effect of molecular doping on the electrical conductivity, I-V measurements on our thin lms were carried out in both in-plane and cross-plane modes. An impressive enhancement (7.8 Â 10 6 times) was observed for the in-plane electrical conductance value of the doped thin lm in comparison to that of the pristine thin lm (Fig.…”

Section: Resultsmentioning

confidence: 99%

Achieving current rectification ratios ≥ 10⁵ across thin films of coordination polymer

et al. 2019

Self Cite

View full text Add to dashboard Cite

show abstract

“…In recent years, many conductive MOFs were reported through the direct‐synthesis strategy. [ 115–118 ] On the one hand, there are many available metal ions or clusters to choose; on the other hand, the linkers can be prepared by specific molecular design to endow them with given electrochemical properties. Furthermore, different combinations of metal ions, linkers as well as other conductive additives can result in different properties of MOFs.…”

Section: The Design and Synthesis Of Conductive Mofsmentioning

confidence: 99%

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

et al. 2020

View full text Add to dashboard Cite

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...

show abstract

Giant Enhancement of Carrier Mobility in Bimetallic Coordination Polymers

Cited by 9 publications

References 40 publications

Rational Construction of Highly Tunable Donor–Acceptor Materials Based on a Crystalline Host–Guest Platform

Rational Construction of Highly Tunable Donor–Acceptor Materials Based on a Crystalline Host–Guest Platform

Achieving current rectification ratios ≥ 10⁵ across thin films of coordination polymer

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

Contact Info

Product

Resources

About

Giant Enhancement of Carrier Mobility in Bimetallic Coordination Polymers

Cited by 9 publications

References 40 publications

Rational Construction of Highly Tunable Donor–Acceptor Materials Based on a Crystalline Host–Guest Platform

Rational Construction of Highly Tunable Donor–Acceptor Materials Based on a Crystalline Host–Guest Platform

Achieving current rectification ratios ≥ 105 across thin films of coordination polymer

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

Contact Info

Product

Resources

About

Achieving current rectification ratios ≥ 10⁵ across thin films of coordination polymer