Study of the thermoelectric properties of NDI-2Tz polymer and its application on a microthermoelectric generator

• Grant number: 19/26375-7
• Support Opportunities: Scholarships in Brazil - Post-Doctoral
• Start date: July 01, 2020
• End date: July 07, 2025
• Field of knowledge: Physical Sciences and Mathematics - Physics - Condensed Matter Physics
• Principal Investigator: Osvaldo Novais de Oliveira Junior
• Grantee: Gustavo Gonçalves Dalkiranis Pereira
• Host Institution: Instituto de Física de São Carlos (IFSC). Universidade de São Paulo (USP). São Carlos , SP, Brazil
• Associated research grant: 18/22214-6 - Towards a convergence of technologies: from sensing and biosensing to information visualization and machine learning for data analysis in clinical diagnosis, AP.TEM
• Associated scholarship(s): 21/12458-8 - Development of label-free biosensors based on graphene, BE.EP.PD

Abstract

New strategies and technologies for clean energy generation are essential for minimizing the effects of global warming and meeting growing energy demand, including for wearable devices containing sensors and biosensors. One possibility is to use thermoelectric materials to convert heat into electrical energy. In this project, a thermoelectric microgenerator made of conductive polymers will be produced to turn biosensors self-powered. To make an efficient microgenerator, a fundamental study will be carried out with a new measurement system to determine the Seebeck coefficient and the electrical conductivity of thermoelectric polymers. The experimental system will be validated by obtaining the Seebeck coefficient and the electrical conductivity of thin films of PEDOT:PSS, a polymer already known in the literature. The Seebeck coefficient and electrical conductivity values of the NDI-2Tz polymer synthesized by a partner in the project will also be measured. For a complete thermoelectric characterization and to determine the figure of merit (ZT), the thermal conductivity will be measured with the thermal mirror technique. PEDOT:PSS and NDI-2Tz will then be applied to a thermoelectric microgenerator on a flexible substrate, the microgenerator being characterized in terms of its efficiency and durability. The integration of the microgenerator with biosensors manufactured in flexible substrates will open a new line of research in the Bernhard Gross Polymer Group, as one of the expected contributions of this project. (AU)

Scientific publications

(8)

(References retrieved automatically from Web of Science and SciELO through information on FAPESP grants and their corresponding numbers as mentioned in the publications by the authors)

RAMBO, EVERTON CRESTANI; KOLBOW, ANA CLARISSA H.; RAMOS, ROMILDO JERONIMO; CHAGAS, EDSON FERREIRA; DE SANTANA, HENRIQUE; DALKIRANIS, GUSTAVO GONCALVES; MARLETTA, ALEXANDRE; THEREZIO, ERALCI MOREIRA. Does the substrate and a buffer layer have a greater influence on poly(3-hexylthiophene) films deposited by the chronocoulometry technique?. PHYSICA SCRIPTA, v. 99, n. 12, p. 10-pg., 2024-12-01. (19/26375-7)

DALKIRANIS, GUSTAVO G.; BOCCHI, JOAO H. C.; OLIVEIRA JR, OSVALDO N.; FARIA, GREGORIO C.. Geometry Optimization for Miniaturized Thermoelectric Generators. ACS OMEGA, v. 8, n. 10, p. 7-pg., 2023-03-01. (21/12458-8, 18/22214-6, 19/26375-7)

DALKIRANIS, GUSTAVO GONCALVES; BASILIO, FERNANDO COSTA; NOBUYASU, ROBERTO S.; CURCINO DA SILVA, SILESIA DE FATIMA; NOGUEIRA, SANDRA LUCIA DIAS; THEREZIO, ERALCI MOREIRA; SEREIN-SPIRAU, FRANCOISE; SILVA, RAIGNA A.; MARLETTA, ALEXANDRE. Photoluminescent ellipsometric circular dichroism. SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY, v. 293, p. 8-pg., 2023-02-07. (21/12458-8, 19/26375-7)

SCHURA, ALEFFE BRUNO; KOLBOW, ANA CLARISSA H.; RAMBO, EVERTON CRESTANI; DALKIRANIS, GUSTAVO GONCALVES; DO NASCIMENTO, CASSIO ARAUJO; RAMOS, ROMILDO JERONIMO; MARLETTA, ALEXANDRE; PEREIRA, LUIZ; GERMINO, JOSE CARLOS; THEREZIO, ERALCI MOREIRA. Investigating the polarized emission of P3HT films and the role of GO in the interfacial layer. NEXT MATERIALS, v. 9, p. 10-pg., 2025-10-25. (19/26375-7, 21/12458-8)

DALKIRANIS, GUSTAVO G.; BOCCHI, JOAO H. C.; TORRES, BRUNO BASSI MILLAN; LOPEANDIA, AITOR F.; OLIVEIRA JR, OSVALDO N.; FARIA, GREGORIO C.. Measurement System to Determine the Seebeck Coefficient and Electrical Conductivity of Thin Films. IEEE TRANSACTIONS ON INSTRUMENTATION AND MEASUREMENT, v. 74, p. 6-pg., 2025-01-01. (18/22214-6, 19/26375-7)

FREITAS, BARBARA LUIZA SOUZA; FAVA, NATALIA MELO DE NASSER; MELO-NETO, MURILO GUILHERME DE; DALKIRANIS, GUSTAVO GONCALVES; TONETTI, ADRIANO LUIZ; BYRNE, JOHN ANTHONY; FERNANDEZ-IBANEZ, PILAR; SABOGAL-PAZ, LYDA PATRICIA. Efficacy of UVC-LED radiation in bacterial, viral, and protozoan inactivation: an assessment of the influence of exposure doses and water quality. WATER RESEARCH, v. 266, p. 10-pg., 2024-08-29. (19/26375-7)

HIGUITA, GERMAN D. GOMEZ; BOCCHI, JOAO H. C.; FLOREZ, YOSTHYN M. ARIZA; DALKIRANIS, GUSTAVO G.; FEITOSA, BIANCA DE ANDRADE; SOUSA, DIEGO; GUSSO, SARA LUIZA; LUGINIESKI, MARCOS; DE LIMA, JOAO VITOR; DE SOUZA, RAFAEL F. SANTIAGO; et al. Synthesis engineering and development of emergent conducting pi-conjugated materials: applications in energy harvesting and storage devices. MATERIALS ADVANCES, v. 6, n. 17, p. 10-pg., 2025-07-21. (19/26375-7, 23/10737-2, 14/50869-6, 22/02768-2)

ROSATI, GIULIO; DEROCO, PATRICIA BATISTA; BONANDO, MATHEUS GUITTI; DALKIRANIS, GUSTAVO G.; CORDERO-EDWARDS, KUMARA; MAROLI, GABRIEL; KUBOTA, LAURO TATSUO; OLIVEIRA, OSVALDO N.; SAITO, LUCIA AKEMI MIYAZATO; SILVA, CECILIA DE CARVALHO CASTRO; et al. Introducing all-inkjet-printed microneedles for in-vivo biosensing. SCIENTIFIC REPORTS, v. 14, n. 1, p. 10-pg., 2024-12-02. (19/00166-2, 14/50867-3, 18/22214-6, 21/12458-8, 21/14732-0, 19/26375-7)