Microscopy investigation of Ag-TCNQ micro/nanostructures synthesized via two solution routes

Cao, Gaoshao; Fang, Fang; Ye, Chunnuan; Xiao, Xing; Xu, Hao; Sun, Dalin; Chen, Guorong

doi:10.1016/j.micron.2004.11.002

Cited by 25 publications

(25 citation statements)

References 17 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…AgTCNQ can be prepared by different routes including organic vapor‐solid‐phase reaction, electrocrystallization or by simply dipping a silver film into acetonitrile saturated with TCNQ . To create AgTCNQ nanowire‐decorated fabrics, we employed a facile approach, wherein initially Ag‐coated fabric was woven in an open weave geometry from silver‐coated Nylon (Shieldex 117/17 using 2 ply conductive silver yarns), which was followed by immersing these Ag fabrics in acetonitrile solutions of TCNQ in a time‐dependent manner (for experimental details, please refer to supplementary information) .…”

Section: Resultsmentioning

confidence: 99%

“…Notably, M‐TCNQ complexes (where M is a transition metal) have received considerable attention over the past 40 years with a particular resurgence in interest in the past few years through the work of Dunbar et al, Bond et al, and Miller et al This is because of their interesting magnetic, optical, electronic, and field emission properties, which make them promising candidates for molecular electronics through the development of memory and switching devices. However, the application of these materials had been restricted to the field of electronics until very recently when we discovered that CuTCNQ can also offer promising photocatalytic properties .…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Hybrid Antibacterial Fabrics with Extremely High Aspect Ratio Ag/AgTCNQ Nanowires

Davoudi

Kandjani

Bhatt

et al. 2013

Adv Funct Materials

View full text Add to dashboard Cite

This study reports the synthesis of extremely high aspect ratios (>3000) organic semiconductor nanowires of Ag–tetracyanoquinodimethane (AgTCNQ) on the surface of a flexible Ag fabric for the first time. These one‐dimensional (1D) hybrid Ag/AgTCNQ nanostructures are attained by a facile, solution‐based spontaneous reaction involving immersion of Ag fabrics in an acetonitrile solution of TCNQ. Further, it is discovered that these AgTCNQ nanowires show outstanding antibacterial performance against both Gram negative and Gram positive bacteria, which outperforms that of pristine Ag. The outcomes of this study also reflect upon a fundamentally important aspect that the antimicrobial performance of Ag‐based nanomaterials may not necessarily be solely due to the amount of Ag+ ions leached from these nanomaterials, but that the nanomaterial itself may also play a direct role in the antimicrobial action. Notably, the applications of metal‐organic semiconducting charge transfer complexes of metal‐7,7,8,8‐tetracyanoquinodimethane (TCNQ) have been predominantly restricted to electronic applications, except from our recent reports on their (photo)catalytic potential and the current case on antimicrobial prospects. This report on growth of these metal‐TCNQ complexes on a fabric not only widens the window of these interesting materials for new biological applications, it also opens the possibilities for developing large‐area flexible electronic devices by growing a range of metal‐organic semiconducting materials directly on a fabric surface.

show abstract

Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Hybrid Antibacterial Fabrics with Extremely High Aspect Ratio Ag/AgTCNQ Nanowires

Davoudi

Kandjani

Bhatt

et al. 2013

Adv Funct Materials

View full text Add to dashboard Cite

show abstract

“…All characteristic peaks of the nanowires match well with the reported structure of AgTCNQ phase II. [11,12] In this phase, the Ag atom is coordinated to four nitrogen atoms in a distorted tetrahedral environment. TCNQ molecules pile face-to-face to form columnar stacks, and adjacent TCNQ stacks have a relative orientation of 908 (see inset of Fig.…”

mentioning

confidence: 99%

Electrochemical Synthesis of High‐Quality AgTCNQ Nanowires Using Carbon Nanotube Electrodes

Ren

Liu

et al. 2009

Advanced Materials

View full text Add to dashboard Cite

High‐quality charge‐transfer complex AgTCNQ nanowires have been successfully synthesized by a facile nanoelectrochemical approach utilizing carbon nanotube (CNT) electrodes. These nanowires have diameters of 30–80 nm and lengths of up to several tens of micrometers, and exhibit remarkable electrical switching bistability. The uniform and high aspect ratio nature of nanowires originates from the one‐dimensional structural feature and ultrasmall surface area of the CNTs.

show abstract

“…Silver‐tetrafluorotetracyano‐p‐quinodimethane (AgTCNQF 4 ) microrods were synthesized via a solution process . A 200 nm silver film was achieved by the vacuum thermal evaporation deposition on a clean glass slide.…”

Section: Methodsmentioning

confidence: 97%

Resonance Raman spectroscopy studies on photoinduced AgTCNQF₄ charge transfer and its electrical switching behavior

Wang

2015

J Raman Spectroscopy

View full text Add to dashboard Cite

The photoinduced charge transfer (CT) phenomenon of a metal–organic complex, Ag ion‐coordinated tetrafluorotetracyano‐p‐quinodimethane (AgTCNQF4), produced by a solution reaction of immersing an Ag deposited film into TCNQF4 acetonitrile solution, was studied by the resonance Raman spectroscopy. The produced AgTCNQF4 formed abundant crystalline microrods over the slide. The analysis of Raman results shows that the photoinduced CT in the AgTCNQF4 microrods possesses a light energy threshold that the excitation wavelengths should be shorter than 514 nm. And the complete degree of CT reaction from TCNQF4− to TCNQF42− accelerates with the irradiation energy increasing. A divalent metal–organic complex (Ag2TCNQF4) is produced as a result of the photoinduced electron transition of AgTCNQF4. The conductive‐atomic force microscope characterization of the AgTCNQF4 microrods proves that this metal–organic complex possesses the reversible electrical bistable switching property. This study is of significance in deeper understanding the electrical and optical properties of such kinds of metal–organic CT complexes and promoting the promising application potential based on the light and electric dual control devices. Copyright © 2015 John Wiley & Sons, Ltd.

show abstract

Microscopy investigation of Ag-TCNQ micro/nanostructures synthesized via two solution routes

Cited by 25 publications

References 17 publications

Hybrid Antibacterial Fabrics with Extremely High Aspect Ratio Ag/AgTCNQ Nanowires

Hybrid Antibacterial Fabrics with Extremely High Aspect Ratio Ag/AgTCNQ Nanowires

Electrochemical Synthesis of High‐Quality AgTCNQ Nanowires Using Carbon Nanotube Electrodes

Resonance Raman spectroscopy studies on photoinduced AgTCNQF₄ charge transfer and its electrical switching behavior

Contact Info

Product

Resources

About

Microscopy investigation of Ag-TCNQ micro/nanostructures synthesized via two solution routes

Cited by 25 publications

References 17 publications

Hybrid Antibacterial Fabrics with Extremely High Aspect Ratio Ag/AgTCNQ Nanowires

Hybrid Antibacterial Fabrics with Extremely High Aspect Ratio Ag/AgTCNQ Nanowires

Electrochemical Synthesis of High‐Quality AgTCNQ Nanowires Using Carbon Nanotube Electrodes

Resonance Raman spectroscopy studies on photoinduced AgTCNQF4 charge transfer and its electrical switching behavior

Contact Info

Product

Resources

About

Resonance Raman spectroscopy studies on photoinduced AgTCNQF₄ charge transfer and its electrical switching behavior