Search Results - "Faria, Roberto M"

Polymer Solar Cells-Interfacial Processes Related to Performance Issues by Gusain, Abhay, Faria, Roberto M, Miranda, Paulo B

“…Harnessing solar energy with solar cells based on organic materials (in particular polymeric solar cells) is an attractive alternative to silicon-based solar…”
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Probing Device Degradation and Electric Fields in Polymeric Field-Effect Transistors by SFG Vibrational Spectroscopy by Motti, Silvia G, Cardoso, Lilian S, Gomes, Douglas J. C, Faria, Roberto M, Miranda, Paulo B

“…There is great interest on the study of the semiconductor/dielectric interface of organic field-effect transistors (OFETs), where a conducting channel is…”
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Low-Temperature Blade-Coated Perovskite Solar Cells by Marques, Adriano S, Faria, Roberto M, Freitas, Jilian N, Nogueira, Ana F

“…Spin coating has been the primary choice of deposition method used in the assembly of lab-scale perovskite solar cells. Other deposition methods are still…”
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Influence of the π‐bridge and heteroatom on fluorene‐based donor‐acceptor polymers: Structure and optoelectronic properties by Pereira, Myllena S., Araujo, Luis O., Daros, Mikaela, Torres, Bruno B. M., Coutinho, Douglas J., Macedo, Andreia G., Faria, Roberto M., Rodrigues, Paula C.

“…Abstract Conjugated copolymers possess intriguing electronic characteristics that can be precisely modulated by manipulating their chemical structures. In this…”
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Sustainable polyaniline/lignin blends for application in supercapacitors by França, Wagner J. S., Cunha, Lialis V. M., Zaioncz, Soraia, Graff, Ismael, Macedo, Andreia G., Floriano, João B., Faria, Roberto M., Rodrigues, Paula C.

“…The increasing demand of renewable energy sources led researchers to investigate new materials and blends for energy generation and harvesting. In this…”
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Investigation of Ferroelectricity and Piezoelectricity in Polar and Non-polar Polymers by Giacometti, José A., Oliveira, Osvaldo N., Faria, Roberto M.

“…An overview is presented of experimental investigations during two decades at the Polymer Group Prof. Bernhard Gross in Sao Carlos, Brazil, on the properties…”
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Differential capacitive response of poly (3-hexylthiophene) diodes and effects of air exposure by da Cunha, Mariana Richelle P., Maciel, Alexandre C., Faria, Roberto M., da Cunha, Helder N.

“…[Display omitted] •Differential capacitance in ITO/P3HT/Al diodes recorded by C−V measurements.•Electron traps and p-doping in P3HT thin-films caused by oxygen…”
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ZnO Nanoparticles, Nanorods, Hexagonal Plates and Nanosheets Produced by Polyol Route and the Effect of Surface Passivation by Acetate Molecules on Optical Properties by Barbosa, Eduardo F., Coelho, Jaqueline A., Spada, Edna R., Amorim, Daniel R. B., Souza, Livia M. C., Cordeiro, Neusmar J. A., de Santana, Henrique, Duarte, José L., Floriano, João B., Schreiner, Wido H., Macedo, Andreia G., Faria, Roberto M., Rodrigues, Paula C.

“…We carried out synthesis of shape-controlled ZnO nanoparticles following a polyol route using either ethylene glycol (EG) or polyethylene glycol (PEG) as…”
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Transient and d.c. analysis of the operation mechanism of light-emitting electrochemical cells by Gozzi, Giovani, Santos, Lucas F., Faria, Roberto M.

“…Light-emitting electrochemical cells (LECs) made of electroluminescent polymers were studied by d.c. and transient current-voltage and luminance-voltage…”
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Synthesis of a PPV-fluorene derivative: Applications in luminescent devices by Rodrigues, Paula C., Fontes, Bruno D., Torres, Bruno B. M., Sousa, Washington S., Faria, Gregório C., Balogh, Debora T., Faria, Roberto M., Akcelrud, Leni

“…ABSTRACT Synthesis of a polyfluorene/poly(p‐phenylene vinylene) derivative, the Poly…”
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Copper spherical cavity arrays: Fluorescence enhancement in PFO films by Spada, Edna R., Valente, Gustavo T., Pereira-da-Silva, Marcelo A., Sartorelli, Maria L., Guimarães, Francisco E.G., Faria, Roberto M.

“…This manuscript addresses the use of a well-ordered antidot copper nanostructure as a active substrate for surface enhancement fluorescence (SEF). The antidot…”
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Electrosynthesized TiO2 films: dependence of the brookite–anatase ratio on the applied potential by Silva, Nara R., Pla Cid, Cristiani C., Spada, Edna R., Reis, Françoise T., Faria, Roberto M., Sartorelli, Maria L.

“…TiO 2 films were produced on ITO using a two-step method: (i) potentiostatic electrosynthesis of an amorphous titanium oxyhydroxide gel and (ii) subsequent…”
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Polyfluorene based blends for white light emission by de Deus, Jeferson Ferreira, Faria, Gregório C., Iamazaki, Eduardo T., Faria, Roberto M., Atvars, Teresa D.Z., Akcelrud, Leni

“…Two single layer white LEDs were constructed with blends of RGB emitting components: red (MEH-PPV), green (polyfluorene derivative) as guests and blue (another…”
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Synthesis and photovoltaic performance of a fluorene-bithiophene copolymer by Grova, Isabel R., Coutinho, Douglas J., Faria, Roberto M., Akcelrud, Leni

“…We present the synthesis of a copolymer structure, poly(9,9′- n -di-hexyl-2,7-fluorene -alt -2,5-bithiophene), referred to herein as LaPPS43, and its…”
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Probing the Functionalization of Gold Surfaces and Protein Adsorption by PM-IRRAS by Marques de Oliveira, Rodrigo, Ferreira, Jacqueline, Santos, Marcos J. L., Faria, Roberto M., Oliveira Jr, Osvaldo N.

“…The control of morphology and coating of metal surfaces is essential for a number of organic electronic devices including photovoltaic cells and sensors. In…”
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Dynamic formation of SEBS copolymer submicrometric structures by Salvador, Michele A., Bianchi, Andrea G.C., Pereira-da-Silva, Marcelo A., Carvalho, Antonio J.F., Faria, Roberto M.

“…Highly ordered A–B–A block copolymer arrangements in the submicrometric scale, resulting from dewetting and solvent evaporation of thin films, have inspired a…”
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Photophysical and photovoltaic properties of a PPV type copolymer containing alternated fluorene and thiophene units by Rodrigues, Paula C., Grova, Isabel, Coutinho, Douglas J., Domingues, Raquel A., Oh, Heong Sub, Seo, Jangwon, Faria, Roberto M., Atvars, Teresa D. Z., Prasad, Paras N., Akcelrud, Leni

“…The synthesis and photophysical characterization of a PPV-type copolymer containing a fluorene derivative alternated with thiophene units is presented:…”
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Langmuir and Langmuir-Blodgett (LB) films of poly[(2-methoxy,5- n-octadecyl)- p-phenylenevinylene] (OC 1OC 18-PPV) by Ferreira, Marystela, Constantino, Carlos J.L., Olivati, Clarissa A., Balogh, Débora T., Aroca, Ricardo F., Faria, Roberto M., Oliveira, Osvaldo N.

“…A PPV derivative, poly(2-methoxy,5-( n-octadecyl)- p-phenylenevinylene) (OC 1OC 18-PPV), has been synthesized via the Gilch route and used to fabricate…”
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Langmuir and Langmuir−Blodgett Films of Poly[2-methoxy-5-(n-hexyloxy)-p-phenylenevinylene] by Ferreira, Marystela, Constantino, Carlos J. L, Olivati, Clarissa A, Vega, M. L, Balogh, Débora T, Aroca, Ricardo F, Faria, Roberto M, Oliveira, Osvaldo N

“…Langmuir films have been fabricated from poly[(2-methoxy-5-n-hexyloxy)-p-phenylenevinylene] (OC1OC6-PPV). The stability and the area per monomer for condensed…”
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Solid-State NMR, Ionic Conductivity, and Thermal Studies of Lithium-doped Siloxane−Poly(propylene glycol) Organic−Inorganic Nanocomposites by de Souza, Paulo H, Bianchi, Rodrigo F, Dahmouche, Karim, Judeinstein, Patrick, Faria, Roberto M, Bonagamba, Tito J

“…Hybrid organic−inorganic ionic conductors, also called ormolytes (organically modified electrolytes), were obtained by dissolution of LiClO4 in…”
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