Home // SENSORCOMM 2012 , The Sixth International Conference on Sensor Technologies and Applications // View article


The Availability and Statistical Properties of Ambient Light for Energy-Harvesting for Wearable Sensor Nodes

Authors:
Oleg Nizhnik
Ucu Maksudi
Sayaka Okochi
Kohei Higuchi
Kazusuke Maenaka

Keywords: solar cell; sensor network; sensor node; wearable; energy harvesting

Abstract:
Data for the availability of ambient light for a wristattached senor node was gathered. The average energy harvest totaled 0.074 J/cm2/day when using a 1.8% efficiency, 0.6V DSSC (dye-sensitized solar cell) and 0.48 J/cm2/day when using a standard 16% efficiency, 0.65V mono-crystalline Si cell. The irradiance averaged for both indoor and outdoor activity of office employees was found to be equivalent to 0.78 W/m2 of solar spectrum light. At lower irradiation, the DSSC produced a higher open-circuit voltage but harvested less power than the Si solar cell.

Pages: 119 to 122

Copyright: Copyright (c) IARIA, 2012

Publication date: August 19, 2012

Published in: conference

ISSN: 2308-4405

ISBN: 978-1-61208-207-3

Location: Rome, Italy

Dates: from August 19, 2012 to August 24, 2012