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The aim of this work is to contribute to the development of a theoretical and practical framework for 3D printed thermoelectric devices (TEDs). The approach here described is based on the integration of 3D printing and solution processing for the facile realization of out-of-plane TEDs. To demonstrate the feasibility of this concept, we initially realize a proof of concept of a out-of-plane TED with...
Printed electronics become more and more relevant for applications in wearable electronics and sensors. Inkjet printing of silver nano-particles can be done at very low cost with a reasonably high precision and conductivity. In this paper, we investigate flexible patch antennas for wireless chip-to-chip communication scenarios, rapidly prototyped using an inkjet printing process. A patch antenna with...
This paper presents a fully printed gas sensor on a flexible substrate. The sensitive film is based on carbon nanotubes (CNT) deposited by spray by an air atomizing nozzle, whereas the electrodes were defined by inkjet printing of silver nanoparticles. The results obtained for NH3 sensing using CNT films deposited on polyimide show good performance in terms of sensitivity and time response to the...
The successful transfer printing of thin metal films onto monolayers of aliphatic bisphosphonic acids (bisPAs) is reported. These monolayers were prepared from solution on plasma-grown aluminum oxide, and were compared with analogous monolayers of alkyl monophosphonic acids (monoPAs) for transfer printing efficacy. Water contact angle and AFM measurements indicated uniform films formed from both classes...
Nano diodes show great potential for applications in detectors, communications and energy harvesting. In this work, we focus on nano transfer printing (nTP) to fabricate nm-scale diodes over extensive areas. Using a temperature-enhanced process, several millions of diodes were transfer-printed in one single step. We show the reliable transfer of functioning MIM diodes, which were electrically characterized...
Nano antenna arrays are excellent devices for infrared detection (terahertz radiation). We present our latest results on the production of nano antennas fabricated in a nano transfer printing process. The molecular beam epitaxy (MBE) technique allows the growth of AlGaAs/GaAs-stamps which are used to fabricate nano antennas with a high aspect ratio of 104. Additionally, Si-stamps have been manufactured...
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