Optimization of organic meso-superstructured solar cells for underwater IoT² self-powered sensors

Hatem, T., Ismail, Z., Elmahgary, M. G., Ghannam, R. , Ahmed, M. A. and Abdellatif, S. O. (2021) Optimization of organic meso-superstructured solar cells for underwater IoT² self-powered sensors. IEEE Transactions on Electron Devices, 68(10), pp. 5319-5321. (doi: 10.1109/TED.2021.3101780)

Abstract

The effectiveness of the mesoporous TiO₂ layer, which acts as an active n-type semiconductor layer in dye-sensitized solar cells (DSSCs), was investigated by varying AgVO₃ doping. To optimize the meso-superstructure, the doping concentration was varied from 0% to 25% using experimentally validated simulations. Moreover, performance comparisons between the experimentally fabricated DSSCs based on natural beetroot dye and the commonly used N719 dye were made. A 15% doping concentration was found optimum for our DSSC, which delivered an output power of 19.24 mW, 6.1% power conversion efficiency, and an open-circuit voltage, Voc , of 0.5 V and a short-circuit current density, Jsc , of 21 mA/cm² in diffused light conditions. Based on these performance results, we integrated our optimized DSSC in an underwater sensing unit as a light harvester.

• Item Type: Articles
• Status: Published
• Refereed: Yes
• Glasgow Author(s) Enlighten ID: Ghannam, Professor Rami
• Authors: Hatem, T., Ismail, Z., Elmahgary, M. G., Ghannam, R., Ahmed, M. A., and Abdellatif, S. O.
• College/School: College of Science and Engineering > School of Engineering > Electronics and Nanoscale Engineering
• Journal Name: IEEE Transactions on Electron Devices
• Publisher: IEEE
• ISSN: 0018-9383
• ISSN (Online): 1557-9646
• Published Online: 11 August 2021
• Copyright Holders: Copyright © 2021 IEEE
• First Published: First published in IEEE Transactions on Electron Devices 68(10): 5319-5321
• Publisher Policy: Reproduced in accordance with the publisher copyright policy