Search Results - "Roca i Cabarrocas, P."

Evolution in morphological, optical, and electronic properties of ZnO:Al thin films undergoing a laser annealing and etching process by Charpentier, C., Boukhicha, R., Prod׳homme, P., Emeraud, T., Lerat, J.-F., Cabarrocas, P. Roca i, Johnson, E.V.

“…The use of a combined excimer (XeCl=308nm) laser annealing (ELA) and chemical etching process (dubbed the “LaText” process) to generate textured ZnO:Al thin…”
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Sol–Gel Route Toward Efficient and Robust Distributed Bragg Reflectors for Light Management Applications by Brudieu, Barbara, Bris, A. Le, Teisseire, J., Guillemot, F., Dantelle, G., Misra, S., Cabarrocas, P. Roca i, Sorin, F., Gacoin, T.

“…The optimization of functional optical devices requires the appropriate control of light propagation, which can be achieved by using engineered dielectric…”
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Black Silicon formation using dry etching for solar cells applications by Murias, D., Reyes-Betanzo, C., Moreno, M., Torres, A., Itzmoyotl, A., Ambrosio, R., Soriano, M., Lucas, J., Cabarrocas, P. Roca i

“…A study on the formation of Black Silicon on crystalline silicon surface using SF6/O2 and SF6/O2/CH4 based plasmas in a reactive ion etching (RIE) system is…”
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Influence of N-type μc-SiOx:H intermediate reflector and top cell material properties on the electrical performance of “micromorph” tandem solar cells by Chatterjee, P., Roca i Cabarrocas, P.

“…Amorphous silicon (a-Si:H) / micro-crystalline silicon (μc-Si:H), "micromorph" tandem solar cells have been investigated using a detailed electrical - optical…”
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Raman scattering analysis of SiH bond stretching modes in hydrogenated microcrystalline silicon for use in thin-film photovoltaics by Johnson, E.V., Kroely, L., Roca i Cabarrocas, P.

“…The presence of a pair of peaks in the high wavenumber infrared (IR) absorption region of hydrogenated microcrystalline silicon (μc-Si:H) has been recently…”
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High deposition rate hydrogenated polymorphous silicon characterized by different capacitance techniques by Darwich, R., Cabarrocas, P. Roca i

“…High deposition rate hydrogenated polymorphous silicon thin films were analyzed using different capacitance techniques. The distribution of localized states…”
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The configurational energy gap between amorphous and crystalline silicon by Kail, F., Farjas, J., Roura, P., Secouard, C., Nos, O., Bertomeu, J., Cabarrocas, P. Roca i

“…The crystallization enthalpy of pure amorphous silicon (a‐Si) and hydrogenated a‐Si was measured by differential scanning calorimetry (DSC) for a large set of…”
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Defect states on the surfaces of a P-type c-Si wafer and how they control the performance of a double heterojunction solar cell by Datta, Antara, Damon-Lacoste, J., Roca i Cabarrocas, P., Chatterjee, P.

“…“Heterojunction with intrinsic thin layer” solar cells combine the high efficiency of crystalline silicon (c-Si) cells, with the low cost of amorphous silicon…”
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Plasma texturing for silicon solar cells: From pyramids to inverted pyramids-like structures by Moreno, M., Daineka, D., Roca i Cabarrocas, P.

“…We have studied systematically a dry and free mask texturing process of crystalline silicon wafers using SF 6/O 2 plasmas in a reactive ion etching (RIE)…”
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Effect of strain on the dark current-voltage characteristic of silicon heterojunction solar cells by Guin, L., Roca i Cabarrocas, P., Jabbour, M.E., Triantafyllidis, N.

“…•The dark j-V curves of solar cells change reversibly with mechanical deformations.•The saturation current shows changes of a few percent for strains of about…”
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Determination of band offsets in a-Si:H/c-Si heterojunctions from capacitance–voltage measurements: Capabilities and limits by Gudovskikh, A.S., Ibrahim, S., Kleider, J.-P., Damon-Lacoste, J., Roca i Cabarrocas, P., Veschetti, Y., Ribeyron, P.-J.

“…The capabilities and limitations of the well-known C– V technique for the determination of the conduction band offsets in (n)a-Si:H/(p)c-Si heterojunctions are…”
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Low temperature epitaxial growth of SiGe absorber for thin film heterojunction solar cells by Cariou, R., Tang, J., Ramay, N., Ruggeri, R., Roca i Cabarrocas, P.

“…Silicon germanium alloys are of great interest for thin film solar cells, thanks to their adjustable bandgap and stronger absorption when compared to Si. SiGe…”
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A comparative study of wet and dry texturing processes of c-Si wafers for the fabrication of solar cells by Moreno, M., Murias, D., Martínez, J., Reyes-Betanzo, C., Torres, A., Ambrosio, R., Rosales, P., Roca i Cabarrocas, P., Escobar, M.

“…•In this work is reported a comparative study of wet and dry texturing of c-Si.•Wet processes are based on KOH or NaOH combined with DI H2O and IPA.•Dry plasma…”
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Interface properties of a-Si:H/c-Si heterojunction solar cells from admittance spectroscopy by Gudovskikh, A.S., Kleider, J.-P., Damon-Lacoste, J., Roca i Cabarrocas, P., Veschetti, Y., Muller, J.-C., Ribeyron, P.-J., Rolland, E.

“…The capabilities of admittance spectroscopy, in particular the dependences of the admittance upon frequency, temperature and applied bias, for the…”
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X-Ray diffraction and Raman spectroscopy for a better understanding of ZnO:Al growth process by Charpentier, C., Prod’homme, P., Maurin, I., Chaigneau, M., Roca i Cabarrocas, P.

“…ZnO:Al thin films were prepared on glass substrates by radio frequency RF magnetron sputtering from a ceramic ZnO target mixed with Al2O3 (1 wt%) in pure argon…”
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Lifetime assessment in crystalline silicon: From nanopatterned wafer to ultra-thin crystalline films for solar cells by Cosme, I., Cariou, R., Chen, W., Foldyna, M., Boukhicha, R., Roca i Cabarrocas, P., Lee, K.D., Trompoukis, C., Depauw, V.

“…We have studied surface passivation on nanopatterned crystalline silicon (c-Si) wafers (280µm), thin c-Si wafers (25µm), ultrathin (~1–6µm) low temperature…”
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Ultra-thin crystalline silicon films produced by plasma assisted epitaxial growth on silicon wafers and their transfer to foreign substrates by Cabarrocas P. Roca i, Moreno M.

“…We have developed a new process to produce ultra-thin crystalline silicon films with thicknesses in the range of 0.1 − 1 μm on flexible substrates. A…”
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Study of the effects of different fractions of large grains of μc-Si:H:F films on the infrared absorption on thin film solar cells by Moreno, M., Boubekri, R., Roca i Cabarrocas, P.

“…We have studied microcrystalline silicon films (μc-Si:H:F) deposited by Plasma Enhanced Chemical Vapor Deposition (PECVD) at low temperature (∼200°C) from…”
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Fractional composition of large crystallite grains: A unique microstructural parameter to explain conduction behavior in single phase undoped microcrystalline silicon by Ram, Sanjay K., Kumar, Satyendra, Cabarrocas, P. Roca i

“…We have studied the dark conductivity of a broad microstructural range of plasma deposited single phase undoped microcrystalline silicon (μc-Si:H) films in a…”
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Determination of the conduction band offset between hydrogenated amorphous silicon and crystalline silicon from surface inversion layer conductance measurements by Kleider, J. P., Gudovskikh, A. S., Roca i Cabarrocas, P.

“…The presence of an electron rich inversion layer in p -type crystalline silicon ( c - Si ) at the interface with n -type hydrogenated amorphous silicon ( a -…”
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