Zobrazeno 1 - 10
of 25
pro vyhledávání: '"Regina M. Q. Mello"'
Publikováno v:
Extensão em Foco.
Sabe-se que as atividades experimentais permitem uma melhor visualização na prática do que os alunos aprendem nas aulas teóricas, o que os possibilita uma maior compreensão dos conteúdos de química. No entanto, muitas escolas públicas não ap
Publikováno v:
Extensão em Foco. 1
Feira ou Mostra de Ciências é uma oportunidade para o desenvolvimento da cultura científica. O evento de extensão da Universidade Federal do Paraná “Mostra de Ciência” é uma divulgação das atividades de extensão realizadas na UFPR envol
Autor:
Lucimara S. Roman, Natasha A. D. Yamamoto, Liliana Micaroni, Daniel C. Silva, Regina M. Q. Mello, Andreia G. Macedo
Publikováno v:
Synthetic Metals. 170:63-68
Ultra thin films of poly(2,2′-bithiophene) with thickness of 11–33 nm were electrochemically deposited on poly(3,4-ethylenedioxithiophene):poly(styrene sulfonic acid) modified indium tin oxide substrates using a new approach for electrochemical s
Publikováno v:
Extensão em Foco.
Uma das atividades dos cursos de nível técnico em química é a realização de um estágio onde o estudante se insere em alguma rotina industrial ou realiza atividades de laboratório numa instituição de ensino. No intuito de oferecer outra form
Publikováno v:
Journal of Materials Science: Materials in Electronics. 24:1052-1056
We report a vertical organic field effect transistor using a bilayer formed by sulfonated polyaniline (SPAN) film and a thin Aluminum layer as the intermediate electrode. The device uses p-Si as gate, SiO2 as gate insulator, SPAN/Al bilayer as drain,
Publikováno v:
Mediterranean Journal of Chemistry. 1:180-191
In this work we compare the spectroelectrochemical response of electrochemically deposited sulfonated polyaniline and polyaniline films. The electrochromic performance of SPAN is slightly superior to that of PANI, showing faster coloring and bleachin
Autor:
Carlos A. Achete, Lucimara S. Roman, C.D. Canestraro, Natasha A. D. Yamamoto, Regina M. Q. Mello, Marco Cremona, C. Legani, Liliana Micaroni, Rogério Valaski, Welber G. Quirino
Publikováno v:
Thin Solid Films. 519:1511-1515
In this work, the influence of titanium dioxide (TiO 2 ) thin films on the efficiency of organic photovoltaic devices based on electrochemically synthesized polythiophene (PT) was investigated. TiO 2 films were produced by sol–gel methods with cont
Publikováno v:
Journal of Materials Science: Materials in Electronics. 20:123-126
Sulfonated polyaniline thin films are deposited on n-type silicon substrates at a rate of 1.2 nm/h. The sulfonated polyaniline/n-Si junctions were characterized by current–voltage and capacitance–voltage measurements and present Schottky barrier
Publikováno v:
Solar Energy Materials and Solar Cells. 91:684-688
We investigated photovoltaic devices based on electrochemically deposited monolayer of neat polythiophene (PT) films onto fluorine-doped tin oxide (FTO)/glass substrates. The photo-electrical behavior of these devices, using FTO and aluminum as elect
Publikováno v:
Journal of Power Sources. 163:1137-1142
Composite electrodes prepared by electrodeposition of manganese oxide on titanium substrates modified with poly(3-methylthiophene) (PMeT) were investigated and compared with Ti/MnO 2 electrodes. The polymer films were prepared by galvanostatic deposi