Neuromorphic Perovskite Based Device with Fast Relearning Functionality

Shahzada Ahmad^a^,^f, Dani S. Assi^b^,^c, M. P.U. Haris^a^,^e, Vaithinathan Karthikeyan^b^,^c, Samrana Kazim^a^,^d^,^f, Vellaisamy A. L. Roy^b^,^c

^a1BCMaterials, Basque Center for Materials, Applications, and Nanostructures, UPV/EHU Science Park

^bElectronics and Nanoscale Engineering, James Watt School of Engineering, University of Glasgow

^cSchool of Science and Technology, Hong Kong Metropolitan University

^d4Materials Physics Center, CSIC-UPV/EHU

^eKing Fahd University of Petroleum and Minerals

^fIKERBASQUE, Basque Foundation for Science, 48013 Bilbao, Vizcaya, España, Bilbao, Spain

Materials for Sustainable Development Conference (MATSUS)
Proceedings of MATSUS Fall 2024 Conference (MATSUSFall24)

#NeuroMorph - Engineering of Semiconductors for Neuromorphic Devices

Lausanne, Switzerland, 2024 November 12th - 15th

Organizers: Shahzada Ahmad and Samrana Kazim

Oral, Shahzada Ahmad, presentation 410
DOI: https://doi.org/10.29363/nanoge.matsusfall.2024.410
Publication date: 28th August 2024

In order to reduce energy consumption, we aim to explore electronic materials beyond silicon for memristor and neuromorphic devices. Halide perovskites have emerged as a choice semiconductor due to their defect tolerance, low defect formation energies, compositional and optical bandgap tunability, and light/electric pulse-induced stimulation possibilities. [1,2] The resistance depends on the applied electrical signals, and this makes them potential candidates for future data storage and neuromorphic computing. The optoelectronic and carrier transport merits allow mimicking the characteristics of neurons and synaptic functions in the human brain. Methylammonium lead triiodide showed synaptic behaviors of photonic and electronic stimulations, and due to the intrinsic phase transition, limited efforts are made to study neuromorphic properties. We developed CsFAPbI3 microcrystals in grams quantity and studied CsFAPbI3-based memristive neuromorphic devices that can switch at low power and show larger endurance. [1] The fabricated memristors also showed an ultra-high paired-pulse facilitation index with applied electric stimuli pulse, and the short-term to long-term memory transition consumes ultra-low energy with long relaxation times. Our results suggest low-power neuromorphic devices that are synchronic to the human brain's performance with faster learning and memorization processes.

Keywords: Perovskite, Passivation, Surface modification, defect density.

References:

[1] Assi, D. S., Haris, M. P.U., Karthikeyan, V., Kazim, S., Ahmad, S., Roy, V.A.L Low Switching Power Neuromorphic Perovskite Devices with Quick Relearning Functionality. Adv. Electron. Mater. 2023, 9, 2300285.

[2] Hernández-Balaguera, E., Munoz-Díaz, L., Bou, A., Romero, B., Ilyassov, B., Guerrero, A., Bisquert, J. Long-term potentiation mechanism of biological postsynaptic activity in neuro-inspired halide perovskite memristors Neuromorph. Comput. Eng. 2023, 3, 024005.

Acknowledgements:

Work produced with the support of a 2023 Leonardo Grant for Scientific Research and Cultural Creation, BBVA Foundation. SA thank INTERACTION (PID2021-129085OB-I00) from the Spanish Ministry of Science and Innovation.

nanoGe is a prestigious brand of successful science conferences that are developed along the year in different areas of the world since 2009. Our worldwide conferences cover cutting-edge materials topics like perovskite solar cells, photovoltaics, optoelectronics, solar fuel conversion, surface science, catalysis and two-dimensional materials, among many others.

MATSUS

Previously nanoGe Spring Meeting (NSM) and nanoGe Fall Meeting (NFM), MATSUS is a multiple symposia conference focused on a broad set of topics of advanced materials preparation, their fundamental properties, and their applications, in fields such as renewable energy, photovoltaics, lighting, semiconductor quantum dots, 2-D materials synthesis, charge carriers dynamics, microscopy and spectroscopy semiconductors fundamentals, etc.

International Conference on Hybrid and Organic Photovoltaics

International Conference on Hybrid and Organic Photovoltaics (HOPV) is celebrated yearly in May. The main topics are the development, function and modeling of materials and devices for hybrid and organic solar cells. The field is now dominated by perovskite solar cells but also other hybrid technologies, as organic solar cells, quantum dot solar cells, and dye-sensitized solar cells and their integration into devices for photoelectrochemical solar fuel production.

Asia-Pacific International Conference on Perovskite, Organic Photovoltaics and Optoelectronics

The main topics of the Asia-Pacific International Conference on Perovskite, Organic Photovoltaics and Optoelectronics (IPEROP) are discussed every year in Asia-Pacific for gathering the recent advances in the fields of material preparation, modeling and fabrication of perovskite and hybrid and organic materials. Photovoltaic devices are analyzed from fundamental physics and materials properties to a broad set of applications. The conference also covers the developments of perovskite optoelectronics, including light-emitting diodes, lasers, optical devices, nanophotonics, nonlinear optical properties, colloidal nanostructures, photophysics and light-matter coupling.

International Conference on Perovskite Thin Film Photovoltaics Perovskite Photonics and Optoelectronics

The International Conference on Perovskite Thin Film Photovoltaics Perovskite Photonics and Optoelectronics (NIPHO) is the best place to hear the latest developments in perovskite solar cells as well as on recent advances in the fields of perovskite light-emitting diodes, lasers, optical devices, nanophotonics, nonlinear optical properties, colloidal nanostructures, photophysics and light-matter coupling.