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Primary challenges to fine-line silver printing for solar cells are achieving high aspect ratios and uniform lines with a low level of striations. This paper compares two high-throughput printing technologies, namely, printing by screens versus stencils. A statistical method is introduced to evaluate the quality of the printed front grid based on the distributions of printed metal line profiles, line...
Inkjet printing has been one of fascinating techniques for microfabrication owing to the characteristics of low manufacturing cost, low processing temperature, low material usage,…etc. [1, 2]. In this work, a Lift-off Printing (LoP) process combining conventional photolithography and inkjet printing processes is introduced to realize printed size-scalable silver microstructures with the line width...
Using direct-write approaches in photovoltaics for metallization and contact formation can significantly reduce the cost per watt of producing photovoltaic devices. Inks have been developed for various materials, such as Ag, Cu, Ni and Al, which can be used to inkjet print metallizations for various kinds of photovoltaic devices. Use of these inks results in metallization with resistivity close to...
Recently a new class of flexible electronics is starting to emerge which is most effectively termed dasiaprinted electronicspsila. This term often refers to all-printed, cost effective, smart electronic products that will find a wide range of applications in large quantities in our society. The substrate material for these applications will be low cost materials like PEN or PET. Because of their lower...
Biopolymers have received much attention lately for use in electronic applications. Salmon DNA complexed with cetyltrimethyl ammonium chloride (DNA-CTMA) produces a material soluble in organic solvents, enhancing the ease of processing. DNA-CTMA has shown promise as an electron blocking layer in organic light emitting diodes (OLEDs) and potential as a gate insulating material in field effect transistors...
In this study, we fabricated in-plane thermoelectric micro-generators (4 mm times 4 mm) based on bismuth telluride thin films by using flash evaporation method. The thermoelectric properties of as-grown thin films are lower than those of bulk materials. Therefore the as-grown thin films were annealed in hydrogen at atmospheric pressure for 1 hour in a temperature range of 200 degC. to 400degC. By...
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