Component design and testing for a miniaturised autonomous sensor based on a nanowire materials platform

Authors Adrian M. Ionescu , Fritz Falk , Hien Duy Tong , Guobin Jia , Elizabeth Buitrago , Montserrat Fernández-Bolaños Badia , Olan Lotty , Maher Kayal , Frank van der Bent , Björn Eisenhawer , Giorgos Fagas , Nikolay Petkov , Francois Krummenacher , Adrian M. Nightingale , Naser Khosropour , Rajesh Ramaneti , Cees van Rijn , Yordan M. Georgiev , Erik Puik , Annett Gawlik , Ran Yu , Justin D. Holmes , Rik Lafeber , John C De Mello , Michael Nolan
Published in Microsystem Technologies
Publication date 20 March 2014
Research groups Microsystems Technology
Type Article


From Springer description: "We present the design considerations of an autonomous wireless sensor and discuss the fabrication and testing of the various components including the energy harvester, the active sensing devices and the power management and sensor interface circuits. A common materials platform, namely, nanowires, enables us to fabricate state-of-the-art components at reduced volume and show chemical sensing within the available energy budget. We demonstrate a photovoltaic mini-module made of silicon nanowire solar cells, each of 0.5 mm2 area, which delivers a power of 260 μW and an open circuit voltage of 2 V at one sun illumination. Using nanowire platforms two sensing applications are presented. Combining functionalised suspended Si nanowires with a novel microfluidic fluid delivery system, fully integrated microfluidic–sensor devices are examined as sensors for streptavidin and pH, whereas, using a microchip modified with Pd nanowires provides a power efficient and fast early hydrogen gas detection method. Finally, an ultra-low power, efficient solar energy harvesting and sensing microsystem augmented with a 6 mAh rechargeable battery allows for less than 20 μW power consumption and 425 h sensor operation even without energy harvesting."


  • Erik Puik
    Erik Puik
    • Professor
    • Research groups: Microsystems Technology

Language English
Published in Microsystem Technologies
Year and volume 20 4
Key words Sensoren
Page range 971-988

Microsystems Technology