Low-Charge-Density Pedot:Pss Applied In Post-Synaptic Organic Neuromorphic Electrodes

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Trabalho

Título do Trabalho

LOW-CHARGE-DENSITY PEDOT:PSS APPLIED IN POST-SYNAPTIC ORGANIC NEUROMORPHIC ELECTRODES

Autores

Henrique F. P. Barbosa
German Dario Gomez Higuita
Florian Günther
Gregório Faria

Modalidade

Apresentação - pôster (Clique aqui para saber os detalhes para submissão)

Área temática

Dispositivos eletrônicos e ópticos (OLED/OFET/OPVs/etc)

Data de Publicação

20/05/2022

País da Publicação

Brasil

Idioma da Publicação

Inglês

Página do Trabalho

https://www.even3.com.br/anais/workshopineo2022/474805-low-charge-density-pedot-pss-applied-in-post-synaptic-organic-neuromorphic-electrodes

ISBN

Palavras-Chave

neuromorphics, organic electronics, PEDOT:PSS

Resumo

The von Neumann architecture has been ubiquitous in computing devices for decades. However, questions about its longevity have been raised in the past few years, mostly due to the slowing of Moore’s Law, ending of Dennard scaling, increasing energy consumption, difficulties in processing complex data for machine learning and the von Neumann bottleneck [1]. As a result, alternative architectures have been proposed and the neuromorphic computing stands out with its organic electrochemical devices. This type of neuromorphic device presents low energy consumption, absence of bottlenecks, multiple memory level access, non-volatility and possible biocompatibility [2]. The state-of-the-art electrochemical neuromorphic organic device or ENODe exhibits all the aforementioned attributes, accessing around 500 distinct memory levels and emulating Pavlovian learning when integrated in a proper circuit [3]. However, the ENODe lacks long term stability due to the leakage of polyethyleneimine (PEI) from its post-synaptic electrode. PEI is used to lower PEDOT:PSS charge density in these electrodes and alternatives must be considered in order to enhance the devices performance. Here we produced low charge density PEDOT:PSS by varying the oxidizing agent quantity during synthesis. Films of these inks substituted the original PEDOT:PSS/PEI in ENODes and presented promising results, such as stable and reproducible memory levels. Moreover, it was possible to correlate changes in the synthesis parameters with ENODe’s memory level properties. Acknowledgements: We would like to thank INEO/CNPq/FAPESP and the Coordenação de Aperfeiçoamento de Pessoal de Nível Superior - Brasil (CAPES) - Finance Code 001 for the financial support. References: [1] NAWROCKI, Robert A.; SHAHEEN, Sean E.; VOYLES, Richard M. A neuromorphic architecture from single transistor neurons with organic bistable devices for weights. In: The 2011 International Joint Conference on Neural Networks. IEEE, 2011. p. 450–456. [2] WAN, Qingzhou et al. Emerging Artificial Synaptic Devices for Neuromorphic Computing. Advanced Materials Technologies, v. 4, n. 4, p. 1–34, 2019. [3] VAN DE BURGT, Yoeri et al. A non-volatile organic electrochemical device as a low-voltage artificial synapse for neuromorphic computing. Nature Materials, v. 16, n. 4, p. 414–418, 2017.

Título do Evento: Workshop INEO 2022
Título dos Anais do Evento: Anais do Workshop INEO 2022
Nome da Editora: Even3
Meio de Divulgação: Meio Digital

Como citar

BARBOSA, Henrique F. P. et al.. LOW-CHARGE-DENSITY PEDOT:PSS APPLIED IN POST-SYNAPTIC ORGANIC NEUROMORPHIC ELECTRODES.. In: Anais do 16° Workshop do Instituto Nacional de Eletrônica Orgânica. Anais...São Carlos(SP) IFSC, 2022. Disponível em: https//www.even3.com.br/anais/workshopINEO2022/474805-LOW-CHARGE-DENSITY-PEDOT-PSS-APPLIED-IN-POST-SYNAPTIC-ORGANIC-NEUROMORPHIC-ELECTRODES. Acesso em: 13/05/2025