![]() Although there are many conductive inks available, one still needs to carefully compare the printability of the inks and the ink compatibility with substrates to successfully fabricate conductive tacks.Īlthough inkjet writing methods have many advantages, there are several challenges that need more effort to solve such as: (i) fluidic instability of pattern definition during the liquid registration process, (ii) cracking and breaking of printed patterns in post-treatment and forming three dimensional structures, (iii) the ability to create scalable high-resolution patterns of functional materials, and (iv) the adhesion and mechanical strength of the printed tracks on flexible substrates. Besides metals, other materials, such as conductive polymers and carbon nanotubes, have also been widely used as printing materials for conductive tracks. To fabricate conductive parts, nanoparticles of metals, such as gold and silver, have been widely adopted in printed devices. Solution-based inks are regularly printed onto substrates and transformed into functional layers after drying. With computer assistance, one can accurately inkjet print specific designs and produce various electronic components quickly in ambient environment. To date, the conductivity of printed silver tracks is close to that of bulk silver under well-controlled conditions.Īmong all printing methods, digital inkjet printing technology has shown a great potential in printing speed and quality. To improve the conductivities of printed tracks, material scientists and engineers have dedicated their efforts on improving nanostructures of conductive material, ink formulations, and printing procedures. One of the challenges for printed electronics is the low conductivity of printed conductive metal contacts, which exist in almost every electrical device. Because the printed electronics is still in the infancy, more research is needed to thoroughly understand the physics behind the interfacial transport phenomena in printing processes. ![]() Those so-called printed electronics technology can actually reduce the manufacturing cost and produce durable devices on flexible substrates with mass production rate. ![]() To lower the cost, currently, various printing methods have been proposed to create thin films with high precisions for medical or electronic devices. These film development processes regularly operate at high temperatures and vacuum conditions, 1, 2 and therefore need high facility and operational cost for device manufacture. In tradition, those thin film patterns are manufactured using lithographical etching technology with chemical vapor deposition (CVD). It does not store any personal data.Formation of thin film patterns with high precision has become an important research topic due to the increasing needs in sophisticated medical or electronic devices. The cookie is set by the GDPR Cookie Consent plugin and is used to store whether or not user has consented to the use of cookies. The cookie is used to store the user consent for the cookies in the category "Performance". This cookie is set by GDPR Cookie Consent plugin. The cookie is used to store the user consent for the cookies in the category "Other. The cookies is used to store the user consent for the cookies in the category "Necessary". The cookie is set by GDPR cookie consent to record the user consent for the cookies in the category "Functional". The cookie is used to store the user consent for the cookies in the category "Analytics". These cookies ensure basic functionalities and security features of the website, anonymously. Necessary cookies are absolutely essential for the website to function properly.
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