2021
DOI: 10.1088/2058-8585/ac442d
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Towards in-situ quality control of conductive printable electronics: a review of possible pathways

Abstract: Over the past decade, printed electronics (PE) has shown great potential for a wide range of industries, from consumer goods, electronics, aerospace, automotive, pharmaceutical, biomedical, to textiles and fashion. The rapid development of printing technology has been strongly driven by the growth of the PE market and its many applications. Here, we review the latest trends in PE production quality control, focusing on emerging technologies such as terahertz spectroscopy, which may play a key role in the devel… Show more

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Cited by 7 publications
(7 citation statements)
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References 115 publications
(295 reference statements)
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“…Microscopic images were taken on a digital microscope (Model: Keyence VHX-7000). From microscopic images, it is evident that some irregularities on edges are noticeable in the square non-metallic block shapes due to ink spreading, which is typical for the screen-printing method [32].…”
Section: Fabrication Of Thz Fss and Experimental Setupmentioning
confidence: 99%
See 1 more Smart Citation
“…Microscopic images were taken on a digital microscope (Model: Keyence VHX-7000). From microscopic images, it is evident that some irregularities on edges are noticeable in the square non-metallic block shapes due to ink spreading, which is typical for the screen-printing method [32].…”
Section: Fabrication Of Thz Fss and Experimental Setupmentioning
confidence: 99%
“…Because of their high conductivity and low loss, conductive inks including copper, graphene, and others, are widely employed to transfer the pattern upon the flexible plastic substrate. The main PE-based fabrication technologies are flexography printing, hotstamping, screen-printing, and ink-jet printing [32,33]. Despite the relatively low resolution of the printed pattern, which is in the order of a few tens of microns, printing THz devices with features on the order of the wavelength size remains adequate.…”
Section: Introductionmentioning
confidence: 99%
“…It is also environmentally beneficial as it produces less raw material waste than conventional methods [25,26]. It is striking that the high precision of additive manufacturing technique, i.e., printable electronics even allows their own non-contact inline inspection by printing THz FSS [27,28]. There have already been a few reports on THz devices made via additive manufacturing, including vortex phase plates [27], diffractive THz lenses [29], gradient-refractive-index lenses [30], band-pass filters [31,32], etc.…”
Section: Introductionmentioning
confidence: 99%
“…The main advantage of additive manufacturing is the ability to add only the necessary quantity of materials for device production, which drastically decreases the produced waste, in contrast to subtractive processes used in conventional electronics [7,8]. The other attraction of PE is its fabrication process, which consists of three main steps: selection of printed materials and substrates, printing and then drying or sintering [9]. However, with the massive demand for PE, concerns about their harmful and irreversible contribution to the environment have grown [10].…”
Section: Introductionmentioning
confidence: 99%