Proceedings of MATSUS Spring 2024 Conference (MATSUS24)
DOI: https://doi.org/10.29363/nanoge.matsus.2024.116
Publication date: 18th December 2023
The rapid development of industry in field of machine vision systems, the Internet of Things (IoT) and smart houses rises the demand for scalable bifacial photodetectors [1-3]. Perovskite photodetectors (PPDs) hold a great potential to dominate photodetector market due to their high detectivity, fast response, and cost-effectiveness. However, unlocking the full potential of PPDs for the industry requires overcoming critical technological challenges, notably in scalability, robustness, weight, and semitransparency.
To bring PPDs towards commercialization, we have fabricated scalable self-powered PPDs using the industrially compatible slot-die coating technique on flexible plastic substrates. The integration of thin dielectric-metal-dielectric layers as transparent top contacts has granted the devices with an impressive bifaciality factor of 78% and light-to-dark current ratios reaching an order of magnitude of 104. Alongside their high detectivity, fabricated PPDs possess the capability to harness solar energy, exhibiting reasonable power conversion efficiencies (PCEs) from both, the bottom- and top-side illuminations.
In this presentation, we will showcase the advancements we made in scalable PPD technology. We will discuss the role of selection of top contacts to optimize the performance of bifacial optoelectronics and conclude the key aspects of fabrication of scalable devices.
This work is suppoerted by the scientific research grants from the Ministry of Higher Education and Science of the Republic of Kazakhstan (Grant Number: AP14869871) and Nazarbayev University (Grant Numbers: 021220CRP1922 and 021220CRP0422).
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