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Printed Flexible Bifacial Perovskite PhotodetectorAidana Azamat a, Hryhorii Parkhomenko a, Muhammad Kiani a, Annie Ng b, Askhat Jumabekov aa Department of Physics, School of Sciences and Humanities, Nazarbayev University, Astana, 010000, Kazakhstanb Department of Electrical and Computer Engineering, School of Engineering and Digital Sciences, Nazarbayev University, Astana 010000, KazakhstanMaterials for Sustainable Development Conference (MATSUS)Proceedings of MATSUS Spring 2024 Conference (MATSUS24)#NextGenPD - Next Generation Photo-and-radiation detectorsBarcelona, Spain, 2024 March 4th - 8thOrganizers: Ardalan Armin and Nicola GaspariniOral, Aidana Azamat, presentation 116DOI: https://doi.org/10.29363/nanoge.matsus.2024.116Publication date: 18th December 2023The 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. References:[1] Li, L.; Ye, S.; Qu, J.; Zhou, F.; Song, J.; Shen, G. Recent Advances in Perovskite Photodetectors for Image Sensing. Small 2021, 17 (18), 2005606.[2] Jahandar, M.; Kim, S.; Lim, D. C. Indoor Organic Photovoltaics for Self-Sustaining IoT Devices: Progress, Challenges and Practicalization. ChemSusChem 2021, 14 (17), 3449–3474.[3] Li, Z.; Zhang, S.; Chang, J.; Zhao, F.; Zhao, Y.; Gao, J. Simulation Study on Light Environment Performance and Heat Gain of Applying a Bimetal Automatic Shading Device to Rooms. Energy and Buildings 2020, 211, 109820.Acknowledgements: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). © FUNDACIO DE LA COMUNITAT VALENCIANA SCITOnanoGe is a prestigious brand of successful science conferences that are developed along the year in different areas of the world since 2009. 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