Inkjet Printing of Zinc(II) Bis-2,2′:6′,2″-Terpyridine Metallopolymers: Printability and Film-Forming Studies by a Combinatorial Thin-Film Library Approach

2012 ◽  
Vol 33 (6-7) ◽  
pp. 503-509 ◽  
Author(s):  
Christian Friebe ◽  
Andreas Wild ◽  
Jolke Perelaer ◽  
Ulrich S. Schubert
Author(s):  
D. M. Davies ◽  
R. Kemner ◽  
E. F. Fullam

All serious electron microscopists at one time or another have been concerned with the cleanliness and freedom from artifacts of thin film specimen support substrates. This is particularly important where there are relatively few particles of a sample to be found for study, as in the case of micrometeorite collections. For the deposition of such celestial garbage through the use of balloons, rockets, and aircraft, the thin film substrates must have not only all the attributes necessary for use in the electron microscope, but also be able to withstand rather wide temperature variations at high altitude, vibration and shock inherent in the collection vehicle's operation and occasionally an unscheduled violent landing.Nitrocellulose has been selected as a film forming material that meets these requirements yet lends itself to a relatively simple clean-up procedure to remove particulate contaminants. A 1% nitrocellulose solution is prepared by dissolving “Parlodion” in redistilled amyl acetate from which all moisture has been removed.


Author(s):  
Jilei Chao ◽  
Ruizhi Shi ◽  
Fuqiang Chu ◽  
Yanling Guo ◽  
Qian Deng

A kind of waterborne varnish for inkjet printing was synthesized, and properties of the waterborne varnish were characterized to make it suitable for the glazing requirements of inkjet printing and other printability requirements. The waterborne varnish was synthesized from epoxy resin (E-51), epoxy diluent (ED), acrylic acid, trimellitic anhydride, maleic anhydride and organic amine by three steps of ring opening reaction, esterification reaction, neutralization reaction. The viscosity, film-forming property, water absorption of waterborne varnish and the water resistance, lightness, wear resistance and bonding strength of coated paper were tested. The effects of the ratio of E-51 and ED in the polymerization system on the properties of waterborne varnish were studied. In the test of printability of self-made waterborne varnish, the absorption of digital inkjet paper to varnish and the influence of varnish on color reproduction of printed image were discussed and studied. The results show that when the molar ratio of epoxy group in E-51 and ED is about 1:1, the prepared varnish is suitable for inkjet printing, and its film-forming property, such as water resistance, adhesion and friction resistance are better. At the same time, its printability is also better.


2020 ◽  
Vol 8 (36) ◽  
pp. 12578-12586 ◽  
Author(s):  
Shangxiong Zhou ◽  
Jianhua Zhang ◽  
Xiaoping Guo ◽  
Honglong Ning ◽  
Dong Guo ◽  
...  

Inkjet printing of environmentally friendly functional nanomaterials for high performance indium–gallium–zinc oxide (IGZO) thin film transistors (TFTs) is highly in demand for the development of inexpensive and green electronics.


Small ◽  
2014 ◽  
Vol 10 (17) ◽  
pp. 3551-3554 ◽  
Author(s):  
Ziyang Lu ◽  
Michael Layani ◽  
Xiaoxu Zhao ◽  
Li Ping Tan ◽  
Ting Sun ◽  
...  

2012 ◽  
Vol 2012 ◽  
pp. 1-7 ◽  
Author(s):  
Chao-Te Liu ◽  
Wen-Hsi Lee ◽  
Jui-Feng Su

The nanocomposite gate insulating film of a pentacene-based thin film transistor was deposited by inkjet printing. In this study, utilizing the pearl miller to crumble the agglomerations and the dispersant to well stabilize the dispersion of nano-TiO2particles in the polymer matrix of the ink increases the dose concentration for pico-jetting, which could be as the gate dielectric film made by inkjet printing without the photography process. Finally, we realized top contact pentacene-TFTs and successfully accomplished the purpose of directly patternability and increase the performance of the device based on the nanocomposite by inkjet printing. These devices exhibited p-channel TFT characteristics with a high field-effect mobility (a saturation mobility of ̃0.58 cm2 V−1 s−1), a large current ratio (>103) and a low operation voltage (<6 V). Furthermore, we accorded the deposited mechanisms which caused the interface difference between of inkjet printing and spin coating. And we used XRD, SEM, Raman spectroscopy to help us analyze the transfer characteristics of pentacene films and the performance of OTFTs.


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