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    Flexible, Transparent, Thickness-Controllable SWCNT/PEDOT:PSS Hybrid Films Based on Coffee-Ring Lithography for Functional Noncontact Sensing Device

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    Type
    Article
    Authors
    Tai, Yanlong cc
    Yang, Zhen Guo
    KAUST Department
    Physical Science and Engineering (PSE) Division
    Date
    2015-11-20
    Online Publication Date
    2015-11-20
    Print Publication Date
    2015-12-08
    Permanent link to this record
    http://hdl.handle.net/10754/594115
    
    Metadata
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    Abstract
    Flexible transparent conductive films (FTCFs) as the essential components of the next generation of functional circuits and devices are presently attracting more attention. Here, a new strategy has been demonstrated to fabricate thickness-controllable FTCFs through coffee ring lithography (CRL) of single-wall carbon nanotube (SWCNT)/poly(3,4-ethylenedioxythiophene)-polystyrenesulfonate (PEDOT:PSS) hybrid ink. The influence of ink concentration and volume on the thickness and size of hybrid film has been investigated systematically. Results show that the final FTCFs present a high performance, including a homogeneous thickness of 60-65 nm, a sheet resistance of 1.8 kohm/sq, a visible/infrared-range transmittance (79%, PET = 90%), and a dynamic mechanical property (>1000 cycle, much better than ITO film), respectively, when SWCNT concentration is 0.2 mg/mL, ink volume is 0.4 μL, drying at room temperature. Moreover, the benefits of these kinds of FTCFs have been verified through a full transparent, flexible noncontact sensing panel (3 × 4 sensing pixels) and a flexible battery-free wireless sensor based on a humidity sensing mechanism, showing excellent human/machine interaction with high sensitivity, good stability, and fast response/recovery ability. © 2015 American Chemical Society.
    Citation
    Tai Y-L, Yang Z-G (2015) Flexible, Transparent, Thickness-Controllable SWCNT/PEDOT:PSS Hybrid Films Based on Coffee-Ring Lithography for Functional Noncontact Sensing Device. Langmuir 31: 13257–13264. Available: http://dx.doi.org/10.1021/acs.langmuir.5b03449.
    Sponsors
    Key Discipline Fund of Shanghai[B117]
    Publisher
    American Chemical Society (ACS)
    Journal
    Langmuir
    DOI
    10.1021/acs.langmuir.5b03449
    PubMed ID
    26551217
    Additional Links
    http://pubs.acs.org/doi/abs/10.1021/acs.langmuir.5b03449
    ae974a485f413a2113503eed53cd6c53
    10.1021/acs.langmuir.5b03449
    Scopus Count
    Collections
    Articles; Physical Science and Engineering (PSE) Division

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