Search Results - "Charas, Ana"

Effect of HDI-Modified GO on the Thermoelectric Performance of Poly(3,4-ethylenedioxythiophene):Poly(Styrenesulfonate) Nanocomposite Films by Luceño-Sánchez, José A, Charas, Ana, Díez-Pascual, Ana M

“…Composite films based on conducting polymers and carbon nanomaterials have attracted much attention for applications in various devices, such as chemical…”
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Free-Standing, Water-Resistant, and Conductivity-Enhanced PEDOT:PSS Films from In Situ Polymerization of 3-Hydroxymethyl-3-Methyl-Oxetane by Jorge, Sara M, Santos, Luís F, Ferreira, Maria João, Marto-Costa, Carolina, Serro, Ana Paula, Galvão, Adelino M, Morgado, Jorge, Charas, Ana

“…Free-standing films based on conducting polymers, such as poly(3,4-ethylenedioxythiophene): poly(styrene sulfonate) (PEDOT:PSS), offer many benefits over…”
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Combined Organic Photovoltaic Cells and Ultra Low Power CMOS Circuit for Indoor Light Energy Harvesting by Batista, Duarte, Oliveira, Luis Bica, Paulino, Nuno, Carvalho, Carlos, Oliveira, João P, Farinhas, Joana, Charas, Ana, Dos Santos, Pedro Mendonça

“…This paper describes an energy harvesting system composed of an organic photovoltaic cell (OPV) connected to a DC-DC converter, designed in a 130 nm…”
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Luminescent Di- and Trinuclear Boron Complexes Based on Aromatic Iminopyrrolyl Spacer Ligands: Synthesis, Characterization, and Application in OLEDs by Suresh, D., Gomes, Clara S. B., Lopes, Patrícia S., Figueira, Cláudia A., Ferreira, Bruno, Gomes, Pedro T., Di Paolo, Roberto E., Maçanita, António L., Duarte, M. Teresa, Charas, Ana, Morgado, Jorge, Vila-Viçosa, Diogo, Calhorda, Maria José

“…New bis‐ and tris(iminopyrrole)‐functionalized linear (1,2‐(HNC4H3‐C(H)N)2‐C6H4 (2), 1,3‐(HNC4H3‐C(H)N)2‐C6H4 (3), 1,4‐(HNC4H3‐C(H)N)2‐C6H4 (4),…”
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Nanostructured layers of a new cross-linkable poly(3-hexylthiophene) in organic photovoltaic cells by Brotas, Graça, Farinhas, Joana, Ferreira, Quirina, Morgado, Jorge, Charas, Ana

“…► We report on a new cross-linkable P3HT derivative. ► Only 10% of cross-linkable units yield insoluble polymer networks. ► Nanostructured and insoluble films…”
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Enhanced Efficiency of PTB7 : PC61BM Organic Solar Cells by Adding a Low Efficient Polymer Donor by Morgado, Jorge, Ferreira, Quirina, Oliveira, Ricardo, Farinhas, Joana, Charas, Ana

“…Ternary blend polymer solar cells combining two electron-donor polymers,…”
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An Experimental Study on Step-Up DC–DC Converters for Organic Photovoltaic Cells by dos Santos, P. Mendonça, Serralheiro, António J., Borges, Beatriz, Torres, João Paulo N., Charas, Ana

“…This work studies two circuit topologies to step-up the voltage supplied by an organic photovoltaic (OPV) cell. Comparison and validation of the proposed…”
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Towards the Development of a Low-Cost Device for the Detection of Explosives Vapors by Fluorescence Quenching of Conjugated Polymers in Solid Matrices by Martelo, Liliana M, das Neves, Tiago F Pimentel, Figueiredo, João, Marques, Lino, Fedorov, Alexander, Charas, Ana, Berberan-Santos, Mário N, Burrows, Hugh D

“…Conjugated polymers (CPs) have proved to be promising chemosensory materials for detecting nitroaromatic explosives vapors, as they quickly convert a chemical…”
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Tunable Fluorophores Based on 2-(N-Arylimino)pyrrolyl Chelates of Diphenylboron: Synthesis, Structure, Photophysical Characterization, and Application in OLEDs by Suresh, D., Lopes, Patrícia S., Ferreira, Bruno, Figueira, Cláudia A., Gomes, Clara S. B., Gomes, Pedro T., Di Paolo, Roberto E., Maçanita, António L., Duarte, M. Teresa, Charas, Ana, Morgado, Jorge, Calhorda, Maria José

“…Reactions of 2‐(N‐arylimino)pyrroles (HNC4H3C(H)N‐Ar) with triphenylboron (BPh3) in boiling toluene afford the respective highly emissive N,N′‐boron chelate…”
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Improving the Efficiency of Organic Solar Cells upon Addition of Polyvinylpyridine by Rodrigues, Rita, Meira, Rui, Ferreira, Quirina, Charas, Ana, Morgado, Jorge

“…We report on the efficiency improvement of organic solar cells (OPVs) based on the low energy gap polyfluorene derivative, APFO-3, and the soluble C fullerene…”
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Ultraviolet-Filtering Luminescent Transparent Coatings for High-Performance PTB7-Th:ITIC–Based Organic Solar Cells by Farinhas, Joana, Correia, Sandra F. H., Fu, Lianshe, Botas, Alexandre M. P., André, Paulo S., Ferreira, Rute A. S., Charas, Ana

“…Photovoltaic (PV) devices based on organic heterojunctions have recently achieved remarkable power conversion efficiency (PCE) values. However,…”
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Self-Organization and Excited-State Dynamics of a Fluorene−Bithiophene Copolymer (F8T2) in Solution by Rodrigues, Rita França, Charas, Ana, Morgado, Jorge, Maçanita, António

“…Poly(9,9-dioctylfluorene-alt-bithiophene) (F8T2) exhibits two distinct conformations in solution depending on the temperature and solvent. The transition from…”
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Corrigendum to “Oxetanes as polymerizable additives to PEDOT: PSS for water-resistant and transparent electrodes” [Polymer 282 (2023) 126196] by Jorge, Sara M., Ablú, Antonio, Garrudo, Fabio, Galvão, Adelino, Santos, Luís F., Morgado, Jorge, Charas, Ana

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3-oxetanylmethanol as additive to PEDOT:PSS for improved conductivity and water-resistance and applications in ink-jet printed electrochemical transistors by Príncipe, Cátia, Jorge, Sara M., Matos, Manuel, Santos, Luís, Morgado, Jorge, Charas, Ana

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Oxetanes as polymerizable additives to PEDOT:PSS for water-resistant and transparent electrodes by Jorge, Sara M., Ablú, António, Garrudo, Fábio, Galvão, Adelino, Santos, Luís F., Morgado, Jorge, Charas, Ana

“…Conductivity and structural resistance in water of thin films of poly(3,4-ethylenedioxythiophene):polystyrene sulfonate (PEDOT:PSS):oxetane mixtures are…”
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Acceptor-donor-acceptor π-extended systems based on α-dithiophenetetrathiafulvalene (α-DT-TTF): Facile synthesis and photoconductivity studies by Velho, Mariana F.G., Paracana, Ana, Serra, João, Alcácer, Luís, Avó, João, Almeida, Manuel, Belo, Dulce, Alves, Helena, Charas, Ana

“…π-Extended derivatives of the electron donor (D) α-dithiophenetetrathiafulvalene (α-DT-TTF) were prepared for the first time. The compounds consisting of…”
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On the effect of pattern substitution and oligo(ethylene oxide) side-chain modification on thiophene-quinoxaline copolymers and their applications in photovoltaic cells by Costa, Cristiana, Farinhas, Joana, Galvão, Adelino M., Charas, Ana

“…The molecular design of conjugated polymers for efficient organic photovoltaic devices (OPVs) providing advantageous processing properties, namely solubility…”
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The Nanoscale Structure and Stability of Organic Photovoltaic Blends Processed with Solvent Additives by Kilbride, Rachel C., Spooner, Emma L. K., Burg, Stephanie L., Oliveira, Bárbara L., Charas, Ana, Bernardo, Gabriel, Dalgliesh, Robert, King, Stephen, Lidzey, David G., Jones, Richard A. L., Parnell, Andrew J.

“…Controlling the nanomorphology in bulk heterojunction photoactive blends is crucial for optimizing the performance and stability of organic photovoltaic (OPV)…”
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Pseudo-doping effect on structural and electrical properties of polyaniline-camphorsulfonic acid by Garrudo, Fábio F.F., Ferreira, L.F. Vieira, Ferraria, Ana M., do Rego, Ana M. Botelho, Charas, Ana, André, Vânia, Duarte, M. Teresa, Linhardt, Robert J., Ferreira, Frederico Castelo, Morgado, Jorge

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Oligo(ethylene oxide) chains in fluorene bridge units of perylenediimide dimers as an efficient strategy for improving the photovoltaic performance in organic solar cells by Farinhas, Joana, Molina, Desiré, Olcina, Ana, Costa, Cristiana, Alcácer, Luís, Fernández-Lázaro, Fernando, Sastre-Santos, Ángela, Charas, Ana

“…Perylenediimides (PDIs) are among the most promising non-fullerene electron-acceptors for applications in organic photovoltaics (PV), providing a large scope…”
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