Millimeter-scale computing platform for next generation of Internet of Things

Jang, Taekwang; Choi, Myungjoon; Shi, Yao; Lee, Inhee; Sylvester, Dennis; Blaauw, David

doi:10.1109/rfid.2016.7487997

Cited by 5 publications

(2 citation statements)

References 9 publications

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“…An important constraint on the capability of an EH technology to serve a given IoT application concerns the limited size typical of IoT nodes, which have characteristic dimensions ranging from 1 mm to 10 cm. [45,[53][54][55] The overall power output of an EH is therefore closely linked to the power density of the associated energy source. The energy output of an EH The power management unit is omitted for the sake of simplicity.…”

Section: Efficiencymentioning

confidence: 99%

Emerging Indoor Photovoltaic Technologies for Sustainable Internet of Things

Pecunia

Occhipinti

Hoye

2021

Advanced Energy Materials

158

187

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The Internet of Things (IoT) provides everyday objects and environments with “intelligence” and data connectivity to improve quality of life and the efficiency of a wide range of human activities. However, the ongoing exponential growth of the IoT device ecosystem—up to tens of billions of units to date—poses a challenge regarding how to power such devices. This Progress Report discusses how energy harvesting can address this challenge. It then discusses how indoor photovoltaics (IPV) constitutes an attractive energy harvesting solution, given its deployability, reliability, and power density. For IPV to provide an eco‐friendly route to powering IoT devices, it is crucial that its underlying materials and fabrication processes are low‐toxicity and not harmful to the environment over the product life cycle. A range of IPV technologies—both incumbent and emerging—developed to date is discussed, with an emphasis on their environmental sustainability. Finally, IPV based on emerging lead‐free perovskite‐inspired absorbers are examined, highlighting their status and prospects for low‐cost, durable, and efficient energy harvesting that is not harmful to the end user and environment. By examining emerging avenues for eco‐friendly IPV, timely insight is provided into promising directions toward IPV that can sustainably power the IoT revolution.

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Section: Efficiencymentioning

confidence: 99%

Emerging Indoor Photovoltaic Technologies for Sustainable Internet of Things

Pecunia

Occhipinti

Hoye

2021

Advanced Energy Materials

158

187

View full text Add to dashboard Cite

show abstract

“…and smaller form factors (e.g., IoT sensor nodes, implantable biosensors, etc.) have never ended [25]. Moore's law has seemed to be slowing down in recent years but 3-D stacking, nanotechnology, and innovative processing and power management may help to keep pushing the energy efficiency of digital electronics in a forward direction [26].…”

Section: Design Criterionmentioning

confidence: 99%

Enabling Medicine Reuse Using a Digital Time Temperature Humidity Sensor in an Internet of Pharmaceutical Things Concept

Hui

Donyai

McCrindle

et al. 2020

Sensors

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Medicinal waste due to improper handling of unwanted medicines creates health and environmental risks. However, the re-dispensing of unused prescribed medicines from patients seems to be accepted by stakeholders when quality and safety requirements are met. Reusing dispensed medicines may help reduce waste, but a comprehensive validation method is not generally available. The design of a novel digital time temperature and humidity indicator based on an Internet of Pharmaceutical Things concept is proposed to facilitate the validation, and a prototype is presented using smart sensors with cloud connectivity acting as the key technology for verifying and enabling the reuse of returned medicines. Deficiency of existing technologies is evaluated based on the results of this development, and recommendations for future research are suggested.

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Dual-Junction GaAs Photovoltaics for Low Irradiance Wireless Power Transfer in Submillimeter-Scale Sensor Nodes

Moon

Barrow

Lim

et al. 2020

IEEE J. Photovoltaics

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Dual-junction GaAs photovoltaic (PV) cells and modules at sub millimeter scale are demonstrated for efficient wireless power transfer for Internet of Things (IoT) and bio-implantable applications under low-flux illumination. The dual-junction approach meets demanding requirements for these applications by increasing the output voltage per cell with reduced area losses from isolation and interconnects. A single PV cell (150 μm × 150 μm) based on the dual-junction design demonstrates power conversion efficiency above 22% with greater than 1.2 V output voltage under low-flux 850 nm near-infrared LED illumination at 6.62 μW/mm 2 , which is sufficient for batteryless operation of miniaturized CMOS IC chips. The output voltage of dual-junction PV modules with 4 series-connected cells demonstrates greater than 5 V for direct battery charging while maintaining a module power conversion efficiency of more than 23%.

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Millimeter-scale computing platform for next generation of Internet of Things

Cited by 5 publications

References 9 publications

Emerging Indoor Photovoltaic Technologies for Sustainable Internet of Things

Emerging Indoor Photovoltaic Technologies for Sustainable Internet of Things

Enabling Medicine Reuse Using a Digital Time Temperature Humidity Sensor in an Internet of Pharmaceutical Things Concept

Dual-Junction GaAs Photovoltaics for Low Irradiance Wireless Power Transfer in Submillimeter-Scale Sensor Nodes

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