Revolutionizing Indoor Energy Harvesting: From Advanced Materials to AI Integration
Marina Freitag a
a Newcastle University, Newcastle upon Tyne, NE1 7RU, United Kingdom., Merz Court, Newcastle upon Tyne NE1 7RU, UK, United Kingdom
International Conference on Hybrid and Organic Photovoltaics
Proceedings of International Conference on Hybrid and Organic Photovoltaics (HOPV24)
València, Spain, 2024 May 12th - 15th
Organizer: Bruno Ehrler
Invited Speaker, Marina Freitag, presentation 096
DOI: https://doi.org/10.29363/nanoge.hopv.2024.096
Publication date: 6th February 2024

The rapid proliferation of Internet of Things (IoT) devices and wireless sensor networks heralds a potential digital revolution, contingent upon overcoming the energy consumption and sustainability barriers. Our research focuses on the development of high-efficiency ambient photovoltaic (PV) cells, utilising sustainable, non-toxic materials, aimed at powering IoT devices in indoor environments. We introduce a novel copper(II/I) electrolyte-based dye-sensitized PV cell demonstrating unprecedented power conversion efficiency of 38% under standard indoor illumination conditions.2 This work includes a comprehensive implementation of a long short-term memory (LSTM) based energy management system that leverages on-device prediction to dynamically adjust computational loads, ensuring continuous operation without power losses. Our approach not only addresses the energy demand of IoT devices but also aligns with environmental sustainability goals by reducing electronic waste and eliminating the need for batteries.  This comprehensive approach not only addresses the current limitations posed by inefficient charge transport materials but also opens new avenues for sustainable, high-performance indoor photovoltaic solutions. Through collaborative theoretical and experimental efforts, we showcase the development of novel coordination polymers that exhibit exceptional hole mobility and conductivity, providing a sustainable alternative to traditional charge transport materials.3 The integration of these materials into photovoltaic devices showcases a significant leap toward achieving perpetual, intelligent IoT devices, thereby driving the future of indoor energy harvesting and AI integration towards a sustainable, digitally revolutionised future.

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