Conjugated polymers as Langmuir and Langmuir-Blodgett films: Challenges and applications in nanostructured devices

Autor(es)

Rodrigues, Rebeca da Rocha ^[1] ; Cruz Gomes da Silva, Rafael Leonardo ^[1] ; Caseli, Luciano ^[1] ; Peres, Laura Oliveira ^[1]

Afiliação do(s) autor(es)

^[1] Univ Fed Sao Paulo, Dept Chem, Lab Hybrid Mat, Diadema, SP - Brazil

• Tipo de documento: Artigo Científico
• Fonte: ADVANCES IN COLLOID AND INTERFACE SCIENCE; v. 285, NOV 2020.
• Citações Web of Science: 0

Resumo

Initially developed for classic systems composed of fatty acids and phospholipids, the Langmuir and Langmuir-Blodgett (LB) techniques allow the fabrication of nanometer-scale devices at self-assembly interfaces with high control over the thickness and molecular architecture. Their application in the research and production of new plastic materials has grown considerably over the past few decades due to the efficiency of conjugated polymers (CPs) for the production oflight-emitting diodes, flexible displays, solar cells, and other photoelectronic devices. The structuring of polymers at different interfaces is not trivial as this class of macromolecules can undergo through different processes of folding/unfolding, which hinders the formation of stable Langmuir monolayers and, consequently, the production of Langmuir-Blodgett films. With these ideas in mind, the present article aims to review a series of elements related to the formation of stable Langmuir and Langmuir-Blodgett films of CPs, especially those based on poly( phenylene vinylene)s, polyfluorenes, and polythiophenes. This review is divided into two parts where we first discuss the formation of neat CP films, and then the strategies for the formation of stable CP films based on the co-immobilization with fatty acids, other polymers, and enzymes as mixed films. (C) 2020 Elsevier B.V. All rights reserved. (AU)

• Processo FAPESP: 18/00291-9 - Filmes de Langmuir e Langmuir-Blodgett de lipídios contendo fenilalanina desidrogenase para sensores de fenilalanina
• Beneficiário: Rafael Leonardo Cruz Gomes da Silva
• Modalidade de apoio: Bolsas no Brasil - Mestrado
• Processo FAPESP: 14/50869-6 - INCT 2014: em Eletrônica Orgânica INEO
• Beneficiário: Roberto Mendonça Faria
• Modalidade de apoio: Auxílio à Pesquisa - Temático
• Processo FAPESP: 19/03239-0 - Interfaces nanoestruturadas para a investigação de substâncias bioativas em modelos de membrana celular e para a construção de dispositivos optoeletrônicos enzimáticos
• Beneficiário: Luciano Caseli
• Modalidade de apoio: Auxílio à Pesquisa - Regular