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The field of organic semiconductor materials and devices is rapidly expanding due to the commercialization of novel organic electronic technologies, such as organic light-emitting diodes (OLEDs), and organic photovoltaic cells. Among the organic devices that have been actively studied are organic field-effect transistors (OFETs) which are compatible with(More)
Numerous energy harvesting wireless devices that will serve as building blocks for the Internet of Things (IoT) are currently under development. However, there is still only limited understanding of the properties of various energy sources and their impact on energy harvesting adaptive algorithms. Hence, we focus on <i>characterizing the kinetic (motion)(More)
This paper presents the design challenges posed by a new class of ultra-low-power devices referred to as Energy-Harvesting Active Networked Tags (EnHANTs). EnHANTs are small, flexible, and self-reliant (in terms of energy devices that can be attached to objects that are traditionally not networked (e.g., books, clothing, and produce), thereby providing the(More)
The enormous stiffness and low density of graphene make it an ideal material for nanoelectromechanical applications. Here, we demonstrate the fabrication and electrical readout of monolayer graphene resonators, and test their response to changes in mass and temperature. The devices show resonances in the megahertz range, and the strong dependence of(More)
—An integrated voltage regulator (IVR) is presented that uses custom fabricated thin-film magnetic power induc-tors. The inductors are fabricated on a silicon interposer and integrated with a multi-phase buck converter IC by 2.5D chip stacking. Several inductor design variations have been fabricated and tested. The best performance has been achieved with a(More)
—This paper focuses on a new type of wireless devices in the domain between RFIDs and sensor networks – Energy Harvesting Active Networked Tags (EnHANTs). Future EnHANTs will be small, flexible, and self-powered devices that can be attached to objects that are traditionally not networked (e.g., books, toys, clothing), thereby providing the infrastructure(More)
This article focuses on a new type of wireless devices in the domain between RFIDs and sensor networks&#8212;Energy-Harvesting Active Networked Tags (EnHANTs). Future EnHANTs will be small, flexible, and self-powered devices that can be attached to objects that are traditionally not networked (e.g., books, furniture, toys, produce, and clothing). Therefore,(More)
Energy Harvesting Active Networked Tags (EnHANTs for short) are small devices that can be attached to arbitrary objects that are traditionally not networked: books, cups, toys, keys, pens, produce, clothing etc. As society is transitioning from barcodes to RFIDs, we envision a future transition from RFIDs to EnHANTs that • energy harvest: collect/store(More)