Perovskiting the Internet of Things
David Forgacs a
a Saule Technologies, Mokotowska 1, Warsaw, 00-640, Warszawa, Poland
International Conference on Hybrid and Organic Photovoltaics
Proceedings of Online International Conference on Hybrid and Organic Photovoltaics (OnlineHOPV20)
Online, Spain, 2020 May 26th - 29th
Organizers: Tracey Clarke, James Durrant, Annamaria Petrozza and Trystan Watson
Invited Speaker, David Forgacs, presentation 066
DOI: https://doi.org/10.29363/nanoge.onlinehopv.2020.066
Publication date: 22nd May 2020

The internet of things (IoT) stands for the extension of the internet beyond computers and smartphones to a broader scope of devices that sense, gather, generate, and exchange information. Most of these smart sensors are in our homes, offices or in industrial environment, remote monitoring for example physical parameters such as temperature, pressure, humidity, sensing volatile organic compounds or detecting motion. Currently, more than 20 billion IoT devices are operating and the count of devices is expected to grow to about 75 billion by 2025, of which the majority will reside indoors. In order to pave the way for real world autonomous operation capabilities, power sources other than conventional batteries must be applied to efficiently harvest the photons from indoor light sources such as white light emitting diodes and fluorescent tubes. Organic-inorganic perovskites solar cells are ideal candidates for efficient indoor power generation owing to their inherent physical properties such as high absorption coefficient, long carrier diffusion length and exceptional defect tolerance. In addition, the band gap tunability of hybrid perovskites allows to seamlessly adjust for a given light source scenario. Saule Technologies has been developing a fully scalable inkjet printing process of perovskite solar cell modules on lightweight flexible substrates. Our perovskite solar cell solutions offer high power density at low light intensity conditions and at the same time exhibit long lifetime to guarantee autonomous operation for IoT devices far beyond typical battery lifetime.

It has been a long but exciting way from the first laboratory samples to the first commercial perovskite solar cell production line. The first applications of hybrid perovskite solar cells will include powering IoT devices and many more will follow soon, given that adequate production capacity has already been established.       

We acknowledge financial support from the Foundation of Polish Science (First TEAM/2017-3/30), and from the National Centre for Research and Development (POIR.01.02.00-00-0309)
 

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