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Marques, A. C., D. Miglietta, G. Gaspar, A. C. Baptista, A. Gaspar, A. Perdigão, I. Soares, C. Bianchi, D. Sousa, B. M. Morais Faustino, V. S. Amaral, T. Santos, A. P. Gonçalves, R. C. da Silva, F. Giorgis, and I. Ferreira, " Synthesis of thermoelectric magnesium-silicide pastes for 3D printing, electrospinning and low-pressure spray", Materials for Renewable and Sustainable Energy, pp. 8-21, 2019.
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Mendes, D. N. D. L., A. Gaspar, I. Ferreira, J. P. B. Mota, and R. P. P. L. Ribeiro, "3D-printed hybrid zeolitic/carbonaceous electrically conductive adsorbent structures", Chemical Engineering Research and Design, vol. 174, pp. 442-453, 2021.
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Gaspar, D., A. C. Pimentel, M. J. Mendes, T. Mateus, B. P. Falcão, J. P. Leitão, J. Soares, A. Araújo, A. Vicente, S. A. Filonovich, H. Águas, R. Martins, and I. Ferreira, "Ag and Sn Nanoparticles to Enhance the Near-Infrared Absorbance of a-Si:H Thin Films", Plasmonics, vol. 9, issue 5, pp. 1015–1023, 2014. AbstractDOI

Silver (Ag) and tin (Sn) nanoparticles (NPs) were deposited by thermal evaporation onto heated glass substrates with a good control of size, shape and surface coverage. This process has the advantage of allowing the fabrication of thin-film solar cells with incorporated NPs without vacuum break, since it does not require chemical processes or post-deposition annealing. The X-ray diffraction, TEM and SEM properties are correlated with optical measurements and amorphous silicon hydrogenated (a-Si:H) films deposited on top of both types of NPs show enhanced absorbance in the near-infrared. The results are interpreted with electromagnetic modelling performed with Mie theory. A broad emission in the near-infrared region is considerably increased after covering the Ag nanoparticles with an a-Si:H layer. Such effect may be of interest for possible down-conversion mechanisms in novel photovoltaic devices.

Neves, N., A. Lagoa, J. Calado, B. A. M. do Rego, E. Fortunato, R. Martins, and I. Ferreira, "Al-doped ZnO nanostructured powders by emulsion detonation synthesis – Improving materials for high quality sputtering targets manufacturing", J. Eur. Ceram. Soc., vol. 34, issue 10, pp. 2325-2338, 2014. AbstractDOI

Emulsion detonation synthesis method was used to produce undoped and Al-doped ZnO nanostructured powders (0.5–2.0 wt.% Al2O3). The synthesized powders present a controlled composition and a morphology which is independent on the doping level. The XRD results indicate wurtzite as the single phase for undoped ZnO and the presence of gahnite as secondary phase for Al-doped ZnO powders. The sintering behavior of each powder was studied based on their linear shrinkage and shrinkage rate curves, showing the high sinterability of the powders. Activation energies for densification in the earlier stage were calculated for all compositions and possible sintering mechanisms are suggested depending on the doping level. The high chemical homogeneity and sinterability and the lower electrical resistivity of the bulk Al-doped sintered samples demonstrates the feasibility of emulsion detonation synthesis for the production of high quality Al-doped ZnO powders to be used in ceramic sputtering targets manufacture.

Soares, P. I. P., I. M. M. Ferreira, and J. P. M. R. Borges, "Application of hyperthermia for cancer treatment: recent patents review", Topics in anti-cancer research, USA, Bentham Science Publishers, pp. 342-383, 2014. Abstract

Cancer is one of the main causes of death in the world and its incidence increases every
day. Current treatments are insufficient and present many breaches. Hyperthermia is an old
concept and was early established as a cancer treatment option, mainly in superficial
cancers. More recently, the concept of intracellular hyperthermia emerged wherein magnetic
particles are concentrated at the tumor site and remotely heated using an applied magnetic
field to achieve hyperthermic temperatures (42-45ºC). Many patents have been registered in
this area since the year 2000. This chapter presents the most relevant information organized
in two main categories according to the use or not of nanotechnology.

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A.Rocha, D. Sousa, I. Ferreira, and M. S. Diniz, "Biochemical responses in Danio rerio following exposure to CdS and ZnS Quantum Dots", Annals of Medicine, vol. 51, pp. 71-71, 2019.
Mendes, M. J., S. Morawiec, T. Mateus, A. Lyubchyk, H. Águas, I. Ferreira, E. Fortunato, R. Martins, F. Priolo, and I. Crupi, "Broadband light trapping in thin film solar cells with self-organized plasmonic nano-colloids", Nanotechnology, vol. 26, issue 13, pp. 135202, 2015. AbstractDOI

The intense light scattered from metal nanoparticles sustaining surface plasmons makes them attractive for light trapping in photovoltaic applications. However, a strong resonant response from nanoparticle ensembles can only be obtained if the particles have monodisperse physical properties. Presently, the chemical synthesis of colloidal nanoparticles is the method that produces the highest monodispersion in geometry and material quality, with the added benefits of being low-temperature, low-cost, easily scalable and of allowing control of the surface coverage of the deposited particles. In this paper, novel plasmonic back-reflector structures were developed using spherical gold colloids with appropriate dimensions for pronounced far-field scattering. The plasmonic back reflectors are incorporated in the rear contact of thin film n-i-p nanocrystalline silicon solar cells to boost their photocurrent generation via optical path length enhancement inside the silicon layer. The quantum efficiency spectra of the devices revealed a remarkable broadband enhancement, resulting from both light scattering from the metal nanoparticles and improved light incoupling caused by the hemispherical corrugations at the cells' front surface formed from the deposition of material over the spherically shaped colloids.

Morawiec, S., M. J. Mendes, S. A. Filonovich, T. Mateus, S. Mirabella, H. Águas, I. Ferreira, F. Simone, E. Fortunato, R. Martins, F. Priolo, and I. Crupi, "Broadband photocurrent enhancement in a-Si:H solar cells with plasmonic back reflectors", Opt. Express, vol. 22, issue 104, pp. A1059-A1070, 2014. AbstractDOI

Plasmonic light trapping in thin film silicon solar cells is a promising route to achieve high efficiency with reduced volumes of semiconductor material. In this paper, we study the enhancement in the opto-electronic performance of thin a-Si:H solar cells due to the light scattering effects of plasmonic back reflectors (PBRs), composed of self-assembled silver nanoparticles (NPs), incorporated on the cells’ rear contact. The optical properties of the PBRs are investigated according to the morphology of the NPs, which can be tuned by the fabrication parameters. By analyzing sets of solar cells built on distinct PBRs we show that the photocurrent enhancement achieved in the a-Si:H light trapping window (600 – 800 nm) stays in linear relation with the PBRs diffuse reflection. The best-performing PBRs allow a pronounced broadband photocurrent enhancement in the cells which is attributed not only to the plasmon-assisted light scattering from the NPs but also to the front surface texture originated from the conformal growth of the cell material over the particles. As a result, remarkably high values of Jsc and Voc are achieved in comparison to those previously reported in the literature for the same type of devices.

C
Lima, N., A. C. Baptista, B. M. M. Faustino, S. Taborda, A. Marques, and I. Ferreira, "Carbon threads sweat-based supercapacitors for electronic textiles", Scientific reports, vol. 10, pp. 1-9, 2020.
Faria, J., B. Dionísio, I. Soares, A. C. Baptista, A. Marques, L. Gonçalves, A. Bettencourt, C. Baleizão, and I. Ferreira, "Cellulose acetate fibres loaded with daptomycin for metal implant coatings", Carbohydrate Polymers, vol. 276, pp. 118733, 2022.