Banca de QUALIFICAÇÃO: THAMIRIS CESCON DOS SANTOS

Uma banca de QUALIFICAÇÃO de DOUTORADO foi cadastrada pelo programa.
STUDENT : THAMIRIS CESCON DOS SANTOS
Date: 24/09/2026
TIME: 14:00
LOCAL: Sala 305 do Bloco B do Campus de Santo André da Universidade Federal do ABC
TITLE:

Design, fabrication, and characterization of donor-acceptor molecular systems for photo-induced charge separation

 

PAGES: 100
BIG AREA: Ciências Exatas e da Terra
AREA: Física
SUBÁREA: Física da Matéria Condensada
SPECIALTY: Transp. Eletrônicos e Prop. Elétricas de Superfícies; Interfaces e Películas
SUMMARY:

Photoinduced charge generation and separation in donor-acceptor systems depend on the electronic properties of the molecular components, as well as on their intermolecular
interactions and organization in the solid state. This work focuses on the π-conjugated S,N-heteroacene derivative SN3a-DCV and its interactions with the donor polymers
P3HT and PM6. The electronic and optical properties of SN3a-DCV were evaluated using DFT and TD-DFT calculations, while its structural properties and tendency to form
crystalline domains were investigated experimentally. The molecular system was studied in different material configurations, including molecular crystals, thin films, donor-
acceptor blends, and organic photovoltaic (OPV) devices. Structural, optical, morphological, and electrical characterization was used to evaluate the effects of SN3a-DCV on the organization and charge-transport properties of the resulting systems. In lateral devices, the P3HT/SN3a-DCV and PM6/SN3a-DCV blends showed changes in electrical conductivity, photoconductivity, and activation energy compared with the corresponding donor polymers. SN3a-DCV was also incorporated as a third component into photovoltaic blends to evaluate its effects on the morphology and electronic properties of the active layers. The results are discussed in terms of the relationship between molecular structure, intermolecular interactions, material organization, and charge-transport and photoinduced electronic properties in donor-acceptor systems.

 

COMMITTEE MEMBERS:
Presidente - Interno ao Programa - 1545089 - DANIEL ZANETTI DE FLORIO
Membro Titular - Examinador(a) Interno ao Programa - 1600858 - HERCULANO DA SILVA MARTINHO
Membro Titular - Examinador(a) Interno ao Programa - 2605463 - JOSE ANTONIO SOUZA
Membro Titular - Examinador(a) Externo ao Programa - 1939561 - FERNANDO HEERING BARTOLONI
Membro Suplente - Examinador(a) Interno ao Programa - 1545738 - MARCIA TSUYAMA ESCOTE
Membro Suplente - Examinador(a) Interno ao Programa - 1734908 - FABIO FURLAN FERREIRA
Membro Suplente - Examinador(a) Interno ao Programa - 3420345 - CARLOS AUGUSTO MERA ACOSTA
Membro Suplente - Examinador(a) Externo ao Programa - 1762438 - JEAN JACQUES BONVENT