Substrate plastic

Other Materials. The amount of plastic substrates plated in 1991 for both decorative and electromagnetic shielding apphcations was estimated to be about 4.3-5.4 x 10 (13). 

Under micro-discontinuous chromium coatings, copper undercoats improve corrosion resistance. On non-conductors, especially on plastic substrates, copper is often applied before nickel-chromium plating over the initial electroless copper or nickel deposit in order to improve ductility and adhesion, e.g. as tested by the standard thermal-cycling test methods ... 

M. Bcrggren, A. Dodabalapur, R. E. Slusher, Organic solid-state lasers with imprinted gratings on plastic substrates, Appl. Phys. Leu. 1998, 72, 410. 

OFETs constructed on a silicon wafer do not lake advantage of one of the main interest of organic materials, namely the possibility of building electronic devices on plastic substrates. A second important drawback of the silicon-based structure is the difficulty to individually address the gale of transistors built on the same wafer, which would prevent the achievement of integrated circuits. 

Electrodeposition has been attempted also on flexible substrates within the scope of fabricating flexible solar cells. Huang et al. [177] investigated the electrodeposition of CIS on Au-coated plastic substrate from aqueous acidic (pH 1.65) solutions of millimolar CuCh, InCb, Se02, containing triethanolamine and sodium citrate. Stoichiometric, semiconductive CIS films (Eg = 1.18 eV) were obtained after annealing at 150 °C in nitrogen. 

The aforementioned studies employing various kinetic boundary conditions (uptake by the monolayers on a plastic substrate, efflux from the apical (AP) membrane of plastic-grown cells pre-equilibrated with drug, and efflux from the basolateral (BL) membrane of filter-grown cells pre-equilibrated with drug) permit the mechanistic and quantitative dissection of the kinetic process of apical-to-basolateral translocation of membrane-interative compounds in the presence and absence of BSA. The mathematical model for transmonolayer kinetics follows. 

Test results show that thin coatings (2-5 mils) can significantly effect the fire performance of plastic substrates. Most EMI coatings decrease ignitability test results. Coatings tend to level diverse flame spread and ease of extinction performance. A 2-mil coating can reduce the 1, value in ASTM E162 Radiant... 

Although current processing temperatures for A1PO dielectrics remain above the threshold for plastic substrates, they are well within the thermal budget of several other substrates of interest for large-area applications. 

McAlpine, M. C. Ahmad, H. Wang, D. Heath, J. R. 2007. Highly ordered nanowire arrays on plastic substrates for ultrasensitive flexible chemical sensors. Nature Mater. 5 379-384. 

It is important to note that the entire NW-TFT device fabrication process is performed essentially at room temperature. Therefore, the assembly of high-performance NW-TFTs can be readily applied to low-cost glass and plastic substrates. It has been demonstrated, for example, that NW-TFTs can be fabricated on plastic substrates (Fig. 11.14d) with carrier mobilities comparable with those made on silicon substrates. Moreover, studies demonstrate that... 

NW-TFT device performance does not change significantly upon slightly flexing the plastic substrate (Fig. 11.14d).67 The use of free-standing nanostructures for flexible electronics has also been demonstrated by various groups using nanotubes,68 nanowires,63 and nano- or micro-ribbons.69,70... 

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