Electrochemically synthesised conducting polymeric materials for applications towards technology in electronics, optoelectronics and energy storage devices

Gurunathan, K.; Murugan, A. Vadivel; Marimuthu, R.; Mulik, Uttam; Amalnerkar, Dinesh

doi:10.1016/s0254-0584(99)00081-4

Cited by 466 publications

(233 citation statements)

References 114 publications

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“…The main types of electroactive polymers are shown in table 1. Electrically conductive polymers are another class of electrically active materials that is attracting increased attention as they show simultaneously high conductivity and the physico-chemical properties of polymers [16][17][18]. Natural materials are attractive for biomedical and related applications as they are obtained from natural sources, exhibiting similar properties to the tissue they are replacing, many of them containing specific cues for cell adhesion and proliferation and allowing cell infiltration [20].…”

Section: Introductionmentioning

confidence: 99%

Piezoelectric polymers as biomaterials for tissue engineering applications

Ribeiro

Sencadas

Correia

et al. 2015

Colloids and Surfaces B: Biointerfaces

423

338

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Tissue engineering often rely on scaffolds for supporting cell differentiation and growth. Novel paradigms for tissue engineering include the need of active or smart scaffolds in order to properly regenerate specific tissues. In particular, as electrical and electromechanical clues are among the most relevant ones in determining tissue functionality in tissues such as muscle and bone, among others, electroactive materials and, in particular, piezoelectric ones, show strong potential for novel tissue engineering strategies, in particular taking also into account the existence of these phenomena within some specific tissues, indicating their requirement also during tissue regeneration. This referee reports on piezoelectric materials used for tissue engineering applications. The most used materials for tissue engineering strategies are reported together with the main achievements, challenges and future needs for research and actual therapies. This review provides thus a compilation of the most relevant results and strategies and a start point for novel research pathways in the most relevant and challenging open questions. This referee reports on piezoelectric materials used for tissue engineering applications.The most used materials for tissue engineering strategies are reported together with the main achievements, challenges and future needs for research and actual therapies. This referee provides thus a compilation of the most relevant results and strategies and a start point for novel research pathways in the most relevant and challenging open questions.

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Section: Introductionmentioning

confidence: 99%

Piezoelectric polymers as biomaterials for tissue engineering applications

Ribeiro

Sencadas

Correia

et al. 2015

Colloids and Surfaces B: Biointerfaces

423

338

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“…Chemical and electrochemical synthesis of conjugated polymer coatings is well described in literature [9][10] . However, both methods have their drawbacks.…”

Section: Introductionmentioning

confidence: 99%

Plasma Deposition of Thiophene Derivatives Under Atmospheric Pressure

Dams

Vangeneugden

Vanderzande

2006

Chemical Vapor Deposition

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Plasma deposition of conjugated polymer films at atmospheric pressure is described. The thiophene derivatives, thiophene, 3-methylthiophene and 3,4-ethylenedioxythiophene were used as monomers. The plasma depositions with the different precursors were compared with analytical techniques such as XPS, FT-IR, UV-VIS and resistance measurements.Good results were obtained with pulsed plasma depositions of poly (3,4-ethylenedioxythiophene). Conductivities up to 1 x 10 -2 S/cm were measured.

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“…Entretanto, as propriedades elétricas dos filmes de PAni dependem do seu processamento e podem sofrer alterações quando em contato com eletrodos metálicos [12] . A eletropolimerização é um método simples de preparação de filmes e garante controle das propriedades elétricas [13] , da espessura [14] e boa adesão a substratos [15,16] . Este método consiste na simultaneidade entre a síntese a partir do precursor, a anilina, e a deposição do polímero PAni sobre eletrodos e também tem sido utilizado para a confecção de diodos orgânicos emissores de luz (OLEDs) [17,18] .…”

Section: -Eletropolimerização Pulsada Para Confecção De Camadas Transunclassified

Eletropolimerização pulsada para confecção de camadas transportadoras de cargas foto-geradas em dispositivos fotovoltaicos orgânicos

Yoshioka¹,

Rocha²,

Cazati³

et al. 2014

Polímeros

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Resumo: Neste trabalho, filmes de polianilina (PAni) depositados por eletropolimerização potenciostática pulsada foram utilizados como camada transportadora em dispositivo orgânico fotovoltaico de heterojunção. Os filmes de PAni foram depositados sobre eletrodo de óxido de índio e estanho (ITO) utilizando-se potenciais pulsados de 1,0 V e 1,5 V em solução ácida contendo 0,1 M de monômero anilina. Os filmes apresentaram coloração esverdeada, uniforme e sem descontinuidades. A morfologia dos filmes de PAni foi analisada por imagens de microscópio de força atômica (AFM) e sua estabilidade foi verificada através de curvas de voltametria cíclica. Análise de espectroscopia de absorção ultravioleta-visível (UV-Vis) evidenciou a obtenção de filmes poliméricos no estado condutor (base esmeraldina). Os filmes de PAni depositada por eletropolimerização potenciostática pulsada sob diferentes tensões foram utilizados como camada transportadora de cargas em dispositivos fotovoltaicos de heterojunção à base de polímeros conjugados. As eficiências de conversão de energia (η) dos dispositivos com estrutura ITO/PAni/MDMO-PPV_PCBM/Al foram determinadas através da curva densidade de corrente-tensão (J-V) e comparadas com os dispositivos construídos sem a camada de PAni com estrutura ITO/MDMO-PPV_PCBM/Al, e observou-se que os dispositivos contendo filmes de PAni apresentaram eficiência cerca de 4 vezes maior. Palavras-chave: Polianilina, eletroquímica de polímeros conjugados, camada transportadora, fotovoltaicos orgânicos. Pulsed Electrodeposition of Polyaniline Films Used as Photogenerated Charge Transporting Layers in Organic Photovoltaic DevicesAbstract: Polyaniline (PAni) films obtained by means of pulsed potentiostatic electropolymerization were used as hole-transporting layer in organic photovoltaic devices. PAni films were deposited onto Indium Tin Oxide (ITO) from an acid solution containing 0.1 M aniline monomer at pulsed potentials of 1 V and 1.5V. The PAni films were characterized by Atomic Force Microscopy (AFM), Cyclic voltammetry and UV-Vis absorption spectroscopy. The active layer of poly[2-methoxy-5-(3′,7′-dimethyloctyloxy)-1,4-phenylenevinylene] (MDMO-PPV) and phenyl-C61-butyric acid methyl ester (PCBM) was spin coated onto PAni films to obtain the ITO/PAni/MDMO-PPV_PCBM/Al photovoltaic device structures. The power conversion efficiency (η) of multilayered devices was evaluated by current density-voltage (J-V) curves. The results indicate that devices obtained with PAni films exhibit a 4-fold increase in conversion efficiency compared to devices without PAni films. Keywords: Polyaniline, pulsed potentiostatic electropolymerization, conductive layer, organic photovoltaics. IntroduçãoAtualmente, os dispositivos capazes de converter energia luminosa em energia elétrica (dispositivos fotovoltaicos ou células solares) apresentam elevado custo de produção, pois são construídos principalmente com silício (Si) de elevada pureza. Os materiais semicondutores orgânicos, como os polímeros, são candidatos potencialmente promisso...

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Electrochemically synthesised conducting polymeric materials for applications towards technology in electronics, optoelectronics and energy storage devices

Cited by 466 publications

References 114 publications

Piezoelectric polymers as biomaterials for tissue engineering applications

Piezoelectric polymers as biomaterials for tissue engineering applications

Plasma Deposition of Thiophene Derivatives Under Atmospheric Pressure

Eletropolimerização pulsada para confecção de camadas transportadoras de cargas foto-geradas em dispositivos fotovoltaicos orgânicos

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