Zhao, J., Ghannam, R. , Law, M. K., Imran, M. A. and Heidari, H. (2020) Photovoltaic power harvesting technologies in biomedical implantable devices considering the optimal location. IEEE Journal of Electromagnetics, RF and Microwaves in Medicine and Biology, 4(2), pp. 148-155. (doi: 10.1109/JERM.2019.2937970)
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193618.pdf - Accepted Version 1MB |
Abstract
here are still many challenges in effectively harvesting and generating power for implantable medical devices. Most of today's research focuses on finding ways to harvest energy from the human body to avoid the use of batteries, which require surgical replacement. For example, current energy harvesters rely on piezoelectricity, thermoelectricity and solar electricity to drive the implantable device. However, the majority of these energy harvesting techniques suffer from a variety of limitations such as low power output, large size or poor efficiency. Due to their high efficiency, we focus our attention on solar photovoltaic cells. We demonstrate the tissue absorption losses severely influence their performance. We predict the performance of these cells using simulation through the verified experimental data. Our results show that our model can obtain 17.20% efficiency and 0.675 V open-circuit voltage in one sun condition. In addition, our device can also harvest up to 15 mW/ cm2 in dermis and 11.84 mW/ cm2 in hypodermis by using 100 mW/ cm2 light source at 800 nm and 850 nm, respectively. We propose implanting our device in hypodermis to obtain a stable power output.
| Item Type: | Articles |
|---|---|
| Status: | Published |
| Refereed: | Yes |
| Glasgow Author(s) Enlighten ID: | Imran, Professor Muhammad and Ghannam, Professor Rami and Zhao, Mr Jinwei and Heidari, Professor Hadi |
| Authors: | Zhao, J., Ghannam, R., Law, M. K., Imran, M. A., and Heidari, H. |
| College/School: | College of Science and Engineering > School of Engineering > Electronics and Nanoscale Engineering College of Science and Engineering > School of Engineering > Systems Power and Energy |
| Journal Name: | IEEE Journal of Electromagnetics, RF and Microwaves in Medicine and Biology |
| Publisher: | IEEE |
| ISSN: | 2469-7249 |
| ISSN (Online): | 2469-7257 |
| Published Online: | 28 August 2019 |
| Copyright Holders: | Copyright © 2019 IEEE |
| First Published: | First published in IEEE Journal of Electromagnetics, RF and Microwaves in Medicine and Biology 4(2):148-155 |
| Publisher Policy: | Reproduced in accordance with the publisher copyright policy |
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