Synthesis Of Customized Pedot:Pss Inks And Their Optimization For Applications In Organic Electronics

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Trabalho

Título do Trabalho

SYNTHESIS OF CUSTOMIZED PEDOT:PSS INKS AND THEIR OPTIMIZATION FOR APPLICATIONS IN ORGANIC ELECTRONICS

Autores

German Dario Gomez Higuita
Florian Günther
Gregório Faria

Modalidade

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

Área temática

Síntese e caracterização de materiais

Data de Publicação

20/05/2022

País da Publicação

Brasil

Idioma da Publicação

Inglês

Página do Trabalho

https://www.even3.com.br/anais/workshopineo2022/474707-synthesis-of-customized-pedot-pss-inks-and-their-optimization-for-applications-in-organic-electronics

ISBN

Palavras-Chave

PEDOTPSS, application, polymerization, charge density, electronic mobility

Resumo

Poly(3,4-ethylenedioxythiophene):Polystyrene sulfonate (PEDOT:PSS) has become the prototype material in organic electronics, either in academia and industrial applications, due to its high conductivity, optical transparency, air stability, and ability to be processed from solution. Its easy processability, relative low-cost, associated with good thermal stability and opto-electronics properties is part of its great success in several fields. It has a wide range of application within organic electronics, such as solar cells, transistors, light emitting diodes, and others.1 PEDOT:PSS is typically synthesized through an oxidative polymerization of 3,4–ethylenedioxythiophene (EDOT). The complete reaction mechanism, however, is still not fully understood and controversially discussed in literature.2 In our work, we aim to understand the influence of the synthesis parameters on the performance of final PEDOT:PSS films, searching for the optimal conditions for certain applications. Of our interest here is the influence of the molar ratio between EDOT, PSS, and the oxidant agent (Na2S2O8) on the PEDOT:PSS properties. We observe, that the increase of oxidant results in the variation of both charge density as well as electronic mobility in PEDOT:PSS films and consequentially, in its conductivity. We have applied our synthesized materials in organic solar-cells and electrochemical neuromorphic devices. In the former we observed an impact on the shunt and serial resistances when using our in-house PEDOT:PSS as hole transport layer. As for the later, our PEDOT:PSS inks resulted in stable and reproducible memory levels. Acknowledgements: The authors acknowledge the funding through FAPESP (project-nr: 2018/15670-5), the “Instituto Nacional de Eletrônica Orgânica” (INEO, FAPESP: 2008/57706-4), CAPES (project-nr: 001) and CNPq (project-nr: 406767/2018-1 and 311184/2019-7). References: 1. Petsagkourakis, I., Kim, N., Tybrandt, K., Zozoulenko, I. & Crispin, X. Poly(3,4-ethylenedioxythiophene): Chemical Synthesis, Transport Properties, and Thermoelectric Devices. Advanced Electronic Materials 5, 1–20 (2019). 2. Kim, D. & Zozoulenko, I. Why Is Pristine PEDOT Oxidized to 33%? A Density Functional Theory Study of Oxidative Polymerization Mechanism. The Journal of Physical Chemistry B 123, 5160–5167 (2019).

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

HIGUITA, German Dario Gomez; GÜNTHER, Florian; FARIA, Gregório. SYNTHESIS OF CUSTOMIZED PEDOT:PSS INKS AND THEIR OPTIMIZATION FOR APPLICATIONS IN ORGANIC ELECTRONICS.. 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/workshopINEO2022/474707-SYNTHESIS-OF-CUSTOMIZED-PEDOT-PSS-INKS-AND-THEIR-OPTIMIZATION-FOR-APPLICATIONS-IN-ORGANIC-ELECTRONICS. Acesso em: 30/04/2025