Published in 12/12/2023 - ISBN: 978-65-272-0088-8

Paper Title
  • Danilo dos Santos
  • Guilherme Kubo Ribeiro
  • Breno Marcel Gomes de Oliveira
  • Gabriel Francisco Teixeira de Oliveira
  • Giovani Fornereto Gozzi
Subject area
Síntese e caracterização de materiais
Publishing Date
Country of Publishing
Language of Publishing
Paper Page
electroluminescent paste, transparent conductive ink, screen printing, silver ink
Printed and flexible electronics represent an emerging market that has been growing significantly in the past 10 years. According to the report "Flexible, Printed and Organic Electronics 2020-2030: Forecasts, Players & Opportunities" by IDTechEX, the current market for printed electronics is estimated at US$41 billion, with a projected growth to over US$74 billion by 2030 [1]. Most of these investments are made in the development of printable conductor and semiconductor inks used in a wide range of applications such as photovoltaics, electronic circuits, light-emitting diodes, among others [2]. Screen printing is an advantageous method for printed electronics due to its low production cost, easy scalability, and pattern flexibility. However, the applicability of this technique is limited by the ink viscosity (10^2 - 10^5 cP) and the resultant film thickness (10-500 µm) [3]. In this context, the E-imp research laboratory located at UNESP in Rio Claro is making every effort to achieve viable materials for this application. We will present some studies and research results carried out by the research group and their proof-of-concept demonstrations. The research we will present was conducted in partnership with the TICON ink industry, which financed the research. In this sense, the development of an electroluminescent paste for screen printing was made, which can be applied to various substrates in a sandwich architecture of only 3 layers: transparent electrode, electroluminescent paste, and opaque electrode. In this architecture, we achieved luminance in the order of 1200 cd/m (at 100 V) and efficacy of 0.8 cd/A (at 100 V), similar to LECELs produced by conventional means. One advantage of using screen printing for electroluminescent materials is its easy customization and low cost. Another developed research was a transparent conductive ink applied by screen printing, which adheres to various substrates and presents the characteristics of viscosity (2000 - 3000 cP), conductivity (200 - 300 S/cm), and transmittance (70 - 85%), demonstrating the concept of application as a heating resistance. We obtained heating rate results of (30-60 °C/min) at 12 V and a lifetime of (2000-3000 hours). We are currently studying and applying this same ink for screen-printed electrochemical transistors, where we initially verified that the produced transistors did not present hysteresis. Finally, another research developed in the research group was the improvement of a product from the partner company Ticon, where we worked and developed an additive for silver ink to improve adhesion to polymeric substrates. We analyzed adhesion according to the ABNT NBR 11003 standard and found that we had a significant gain in adhesion, going from GR3 to GR0. The authors acknowledge the Indústria de Tintas Condutivas TICON for the project funding and the Instituto de Geociências e Ciências Extas (Unesp) for the additional financial support. [1] Flexible, Printed and Organic Electronics 2020-2030: Forecasts, Technologies, Markets. IDTechEx - Acesso em: 03/02/2023. [2] PRASHANT SINGH, SANJAY K. SRIVASTAVA, B. SIVAIAH, P. PRATHAP, C.M.S. RAUTHAN. Enhanced photovoltaic performance of PEDOT: PSS/Si solar cells using hierarchical light trapping scheme, Solar Energy, v. 170, p. 221-233 (2018) [3] Krebs, F. C., Solar Energy Materials & Solar Cells, 93, 394–412 (2009)
Title of the Event
Workshop do INEO 2023
City of the Event
Nazaré Paulista
Title of the Proceedings of the event
Anais do Workshop INEO 2023
Name of the Publisher
Means of Dissemination
Meio Digital
LinkGet DOI

How to cite

SANTOS, Danilo dos et al.. STUDY AND APPLICATION OF NEW MATERIALS FOR PRINTED ELECTRONICS.. In: Anais do workshop INEO 2023. Anais...Nazaré Paulista(SP) Hotel Estância Atibainha, 2023. Available in: https// Access in: 16/06/2024


Even3 Publicacoes