Zobrazeno 1 - 10
of 21
pro vyhledávání: '"Joana Farinhas"'
Autor:
Joana Farinhas, Sandra F. H. Correia, Lianshe Fu, Alexandre M. P. Botas, Paulo S. André, Rute A. S. Ferreira, Ana Charas
Publikováno v:
Frontiers in Nanotechnology, Vol 3 (2021)
Photovoltaic (PV) devices based on organic heterojunctions have recently achieved remarkable power conversion efficiency (PCE) values. However, photodegradation is often a cause of dramatic drops in device performance. The use of ultraviolet (UV)-abs
Externí odkaz:
https://doaj.org/article/0fc67b3dfdae4273b78ca9a9d007465b
Publikováno v:
International Journal of Photoenergy, Vol 2017 (2017)
Ternary blend polymer solar cells combining two electron-donor polymers, poly[4,8-bis[(2-ethylhexyl)oxy]benzo[1,2-b:4,5-b′]dithiophene-2,6-diyl][3-fluoro-2-[(2-ethylhexyl)carbonyl]thieno[3,4-b]thiophenediyl] (PTB7) and poly[2,5-bis(3-dodecylthiophe
Externí odkaz:
https://doaj.org/article/0b300575b27e4bd49bf127b87dbfd504
Autor:
Duarte Batista, Luis Bica Oliveira, Nuno Paulino, Carlos Carvalho, João P. Oliveira, Joana Farinhas, Ana Charas, Pedro Mendonça dos Santos
Publikováno v:
Sensors, Vol 19, Iss 8, p 1803 (2019)
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 Complementary Metal-Oxide-Semiconductor (CMOS) technology, with a quasi- maximum power point tracki
Externí odkaz:
https://doaj.org/article/5fc83352253a44c9a761669ca88cde14
Autor:
Abilio J.F.N. Sobral, Christopher M.A. Brett, António Aguiar, Joana Farinhas, Wanderson da Silva, Mariana Emilia Ghica, Jorge Morgado
Publikováno v:
Dyes and Pigments. 168:103-110
A series of highly fluorinated BODIPY dyes with different styryl aromatic donor groups such as phenyl, naphthyl and anthracyl were designed, synthesized, characterized and applied as electron-donor materials in organic photovoltaic cells (OPV). The i
Autor:
Fernando Fernández-Lázaro, Joana Farinhas, Cristiana Costa, Ana Charas, Luís Alcácer, Desiré Molina, Ángela Sastre-Santos, Ana Olcina
Publikováno v:
Dyes and Pigments. 161:188-196
Perylenediimides (PDIs) are among the most promising non-fullerene electron-acceptors for applications in organic photovoltaics (PV), providing a large scope for structural modifications. PDI-based dimers have shown the highest performances in PV dev
Publikováno v:
New Journal of Chemistry. 43:5202-5213
Two new molecules, TQT1 and TQT2, and a polymer, PTQT, with a core based on [1,2,5]thiadiazolo[3,4-g]quinoxaline (TQ) with oligoether-substituted phenyl groups as acceptor and thiophene (T) or bithiophene (T2) as donor, were synthesised, characterise
Autor:
Christopher M.A. Brett, Luís Alcácer, Joana Farinhas, Wanderson da Silva, António Aguiar, Jorge Morgado, Abilio J.F.N. Sobral, Isabel Santos
Publikováno v:
Dyes and Pigments. 193:109517
We report on the straightforward synthesis, characterization and photovoltaic and light-emission applications of two series of BODIPY molecules with aryloxy or alkoxy groups bonded to the boron centre. The crystal structures of two of these new dyes
Autor:
Jorge Morgado, Leif Ericsson, Joana Farinhas, Ellen Moons, Ricardo Oliveira, Ana Charas, Rickard Hansson
Publikováno v:
Organic Electronics. 41:130-136
Organic photovoltaic cells based on ternary blends of materials with complementary properties represent an approach to improve the photon-absorption and/or charge transport within the devices. However, the more complex nature of the ternary system, i
Publikováno v:
International Journal of Photoenergy, Vol 2017 (2017)
Ternary blend polymer solar cells combining two electron-donor polymers, poly[4,8-bis[(2-ethylhexyl)oxy]benzo[1,2-b:4,5-b′]dithiophene-2,6-diyl][3-fluoro-2-[(2-ethylhexyl)carbonyl]thieno[3,4-b]thiophenediyl] (PTB7) and poly[2,5-bis(3-dodecylthiophe
Publikováno v:
ChemistrySelect. 1:5638-5646
We report on significant efficiency enhancement of bulk heterojunction organic photovoltaic cells based on blends of poly(9,9-dioctylfluorene-alt-bithiophene), F8T2, or poly[[4,8-bis[(2-ethylhexyl)oxy]benzo[1,2-b:4,5-b′]dithiophene-2,6-diyl][3-fluo