Title |
All-printed diode operating at 1.6 GHz
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Published in |
Proceedings of the National Academy of Sciences of the United States of America, July 2014
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DOI | 10.1073/pnas.1401676111 |
Pubmed ID | |
Authors |
Negar Sani, Mats Robertsson, Philip Cooper, Xin Wang, Magnus Svensson, Peter Andersson Ersman, Petronella Norberg, Marie Nilsson, David Nilsson, Xianjie Liu, Hjalmar Hesselbom, Laurent Akesso, Mats Fahlman, Xavier Crispin, Isak Engquist, Magnus Berggren, Göran Gustafsson |
Abstract |
Printed electronics are considered for wireless electronic tags and sensors within the future Internet-of-things (IoT) concept. As a consequence of the low charge carrier mobility of present printable organic and inorganic semiconductors, the operational frequency of printed rectifiers is not high enough to enable direct communication and powering between mobile phones and printed e-tags. Here, we report an all-printed diode operating up to 1.6 GHz. The device, based on two stacked layers of Si and NbSi2 particles, is manufactured on a flexible substrate at low temperature and in ambient atmosphere. The high charge carrier mobility of the Si microparticles allows device operation to occur in the charge injection-limited regime. The asymmetry of the oxide layers in the resulting device stack leads to rectification of tunneling current. Printed diodes were combined with antennas and electrochromic displays to form an all-printed e-tag. The harvested signal from a Global System for Mobile Communications mobile phone was used to update the display. Our findings demonstrate a new communication pathway for printed electronics within IoT applications. |
X Demographics
Geographical breakdown
Country | Count | As % |
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United Kingdom | 1 | 50% |
Unknown | 1 | 50% |
Demographic breakdown
Type | Count | As % |
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Members of the public | 2 | 100% |
Mendeley readers
Geographical breakdown
Country | Count | As % |
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United States | 2 | 1% |
France | 1 | <1% |
Germany | 1 | <1% |
Greece | 1 | <1% |
Austria | 1 | <1% |
Unknown | 155 | 96% |
Demographic breakdown
Readers by professional status | Count | As % |
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Researcher | 38 | 24% |
Student > Ph. D. Student | 37 | 23% |
Student > Master | 15 | 9% |
Student > Bachelor | 13 | 8% |
Student > Doctoral Student | 11 | 7% |
Other | 23 | 14% |
Unknown | 24 | 15% |
Readers by discipline | Count | As % |
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Engineering | 48 | 30% |
Materials Science | 30 | 19% |
Physics and Astronomy | 14 | 9% |
Chemistry | 14 | 9% |
Chemical Engineering | 9 | 6% |
Other | 16 | 10% |
Unknown | 30 | 19% |