STUDYING SILVER NANOPARTICLES' IMPACT ON CONJUGATED POLYMER PHOTODEGRADATION

BRUNA SEDACA CAMARGO DE MELO; Laura Péres

Todos os Trabalhos

Trabalho

Título do Trabalho

STUDYING SILVER NANOPARTICLES' IMPACT ON CONJUGATED POLYMER PHOTODEGRADATION

Autores

BRUNA SEDACA CAMARGO DE MELO
Laura Péres

Modalidade

Pôster

Área temática

3) Design, Synthesis, and Characterization of Electronic/Optoelectronic Materials and Devices

Data de Publicação

17/05/2024

País da Publicação

Brasil

Idioma da Publicação

Inglês

Página do Trabalho

https://www.even3.com.br/anais/workshop-do-ineo-2024/797394-studying-silver-nanoparticles-impact-on-conjugated-polymer-photodegradation

ISBN

978-65-272-0462-6

Palavras-Chave

Silver Nanoparticles, Conjugated Polymer, Photodegradation, Composite, PFSTB

Resumo

The use of conjugated polymers in electronic systems provides benefits such as flexibility and lightweight. However, it encounters challenges, including the need to improve efficiency and stability against photodegradation in applications like solar cells. [1] An approach explored in the literature to enhance the performance of organic photovoltaic systems involves the incorporation of metallic nanoparticles into their structure. [2] In this context, this work aims to investigate the influence of silver nanoparticles (AgNP) on the photodegradation resistance of the copolymer poly(9,9-dioctylfluorene)-co-trans-stilbene (PFSTB). To this end, PFSTB, which exhibits luminescent and semiconductor properties attributed to the conjugated bonds present in its fluorene and stilbene structure, was synthesized using the Suzuki method. Meanwhile, spherical AgNPs were synthesized following the method described by Silva et al. [3] Through UV-Vis spectroscopy, it was observed that both the polymer and AgNPs, when analyzed separately, exhibited absorption values close to each other, with peaks around 380 nm and 400 nm, respectively. The PFSTB and the composite formed by this polymer and AgNPs were deposited by spin coating as thin films on quartz substrates and exposed to different periods of light (1h to 24 hours). The luminescent properties of the materials were measured before and after exposure to light radiation with a wavelength of 254 nm. Characterizations of these materials include analyses of absorption and emission properties using UV-Vis and fluorescence spectroscopy, respectively. The results obtained are of great importance for a better understanding of the susceptibility to photodegradation of PFSTB and its composite with AgNP. Acknowledgements: The authors would like to thank the Federal University of São Paulo (UNIFESP), INEO, CNPq (310647/2020-7), CAPES (Finance Code 001), and FAPESP (2014/50869-6). References: [1] WANG, K.; LI, Y.; LI, Y. Challenges to the stability of active layer materials in organic solar cells. Macromolecular Rapid Communications, v. 41, n. 4, p. 1900437, 2020. [2] WULANDARI, P. et al. Surface plasmon resonance effect of silver nanoparticles on the enhanced efficiency of inverted hybrid organic–inorganic solar cell. Journal of Nonlinear Optical Physics & Materials, v. 27, n. 02, p. 1850017, 2018. [3] SILVA, M. M. et al. Synthesis of Pluronic-based silver nanoparticles/methylene blue nanohybrids: Influence of the metal shape on photophysical properties. Materials Science and Engineering: C, v. 114, p. 110987, 2020.

Título do Evento: Workshop do INEO 2024
Cidade do Evento: Nazaré Paulista
Título dos Anais do Evento: Anais do Workshop INEO 2024
Nome da Editora: Even3
Meio de Divulgação: Meio Digital

Como citar

MELO, BRUNA SEDACA CAMARGO DE; PÉRES, Laura. STUDYING SILVER NANOPARTICLES' IMPACT ON CONJUGATED POLYMER PHOTODEGRADATION.. In: Anais do Workshop INEO 2024. Anais...Nazaré Paulista(SP) Hotel Estância Atibainha, 2024. Disponível em: https//www.even3.com.br/anais/workshop-do-ineo-2024/797394-STUDYING-SILVER-NANOPARTICLES-IMPACT-ON-CONJUGATED-POLYMER-PHOTODEGRADATION. Acesso em: 23/09/2025