References of "Depredurand, Valérie 50001667"
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See detailHighly conductive ZnO films with high near infrared transparency
Hala, Matej UL; Fujii, Shohei; Redinger, Alex UL et al

in Progress in Photovoltaics: Research and Applications (2015)

We present an approach for deposition of highly conductive nominally undoped ZnO films that are suitable for the n-type window of low band gap solar cells. We demonstrate that low-voltage radio frequency ... [more ▼]

We present an approach for deposition of highly conductive nominally undoped ZnO films that are suitable for the n-type window of low band gap solar cells. We demonstrate that low-voltage radio frequency (RF) biasing of growing ZnO films during their deposition by non-reactive sputtering makes them as conductive as when doped by aluminium (ρ≤1·10−3Ω cm). The films prepared with additional RF biasing possess lower free-carrier concentration and higher free-carrier mobility than Al-doped ZnO (AZO) films of the same resistivity, which results in a substantially higher transparency in the near infrared region (NIR). Furthermore, these films exhibit good ambient stability and lower high-temperature stability than the AZO films of the same thickness. We also present the characteristics of Cu(InGa)Se2, CuInSe2 and Cu2ZnSnSe4-based solar cells prepared with the transparent window bilayer formed of the isolating and conductive ZnO films and compare them to their counterparts with a standard ZnO/AZO bilayer. We show that the solar cells with nominally undoped ZnO as their transparent conductive oxide layer exhibit an improved quantum efficiency for λ > 900 nm, which leads to a higher short circuit current density JSC. This aspect is specifically beneficial in preparation of the Cu2ZnSnSe4 solar cells with band gap down to 0.85 eV; our champion device reached a JSC of nearly 39 mAcm−2, an open circuit voltage of 378 mV, and a power conversion efficiency of 8.4 %. [less ▲]

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See detailPrediction of Photovoltaic Cu(In,Ga)Se2 p-n Device Performance by forward Bias Electrochemical Analysis of Only the p-Type Cu(In,Ga)Se2 Films
Colombara, Diego UL; Bertram, Tobias UL; Depredurand, Valérie UL et al

in Electrochemical Society Transactions (2015), 66(6), 19-25

This work is an attempt to rate the quality of Mo/Cu(In,Ga)Se2 films intended for fabrication of photovoltaic devices. The procedure is based on the simple current-voltage electrochemical analysis of the ... [more ▼]

This work is an attempt to rate the quality of Mo/Cu(In,Ga)Se2 films intended for fabrication of photovoltaic devices. The procedure is based on the simple current-voltage electrochemical analysis of the bilayer in a Eu2+/3+-containing electrolyte solution. Two series of bilayer samples were tested electrochemically, while sister samples were completed into Mo/Cu(In,Ga)Se2/CdS/i-ZnO/Al:ZnO/Ni-Al solid state devices and their current-voltage characteristics measured in the dark. A correlation was found between the reverse saturation current density of the solid state devices and an analogous parameter extracted from the electrochemical response in forward bias. While Eu2+ was found to be metastable in water posing restrictions to the application, reproducible measurements were achieved with a methanol-based solution. The intrinsic simplicity of the proposed methodology makes it particularly suitable for the implementation of a low-cost diagnostic tool. [less ▲]

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See detailAlternative etchning for improved Cu-rich CuInSe2 solar Cells
Depredurand, Valérie UL; Bertram, Tobias UL; Thevenin, Maxime UL et al

in Materials Research Society Symposia Proceedings. Materials Research Society (2015), 1771

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See detailCu-rich CuInSe2 solar cells with a Cu-poor surface
Aida, Yasuhiro UL; Depredurand, Valérie UL; Larsen, Jes K. UL et al

in PROGRESS IN PHOTOVOLTAICS (2015), 23

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See detailCurrent loss due to recombination in Cu-rich CuInSe2 solar cells
Depredurand, Valérie UL; Tanaka, Daisuke; Aida, Yasuhiro UL et al

in JOURNAL OF APPLIED PHYSICS (2014), 115

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See detailIn-Se surface treatment of Cu-rich grown CuInSe2
Bertram, Tobias UL; Depredurand, Valérie UL; Siebentritt, Susanne UL

in Proceedings of the IEEE Photovoltaic Specialist Conference 2014 (2014)

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See detailComposition dependent characterization of copper indium diselenide thin film solar cells synthesized from electrodeposited binary selenide precursor stacks
Fischer, Johannes; Larsen, Jes K. UL; Guillot, Jerôme et al

in Solar Energy Materials & Solar Cells (2014), 126

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See detailSingle Second Laser Annealed CuInSe2 Semiconductors from Electrodeposited Precursors as Absorber Layers for Solar Cells
Meadows, Helen UL; Bathia, Ashish; Depredurand, Valérie UL et al

in Journal of Physical Chemistry C (2014), 118 (3)

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See detailInfluence of the Se environment on Cu-rich CIS devices
Depredurand, Valérie UL; Bertram, Tobias UL; Siebentritt, Susanne UL

in Physica B: Condensed Matter (2013), B 439

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See detailThree ways to grow faster and better CIGSe
Dale, Phillip UL; Malaquias, Joao Corujo Branco UL; Meadows, Helen UL et al

Scientific Conference (2013)

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See detailWhy do we make Cu(In,Ga)Se2 solar cells non-stoichiometric?
Siebentritt, Susanne UL; Gütay, Levent UL; Regesch, David UL et al

in Solar Energy Materials & Solar Cells (2013)

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See detailInfluence of copper excess on the absorber quality of CulnSe2
Gütay, Levent UL; Regesch, David UL; Larsen, Jes K. UL et al

in Applied Physics Letters (2011), 99(151912), 1519121-15191123

Detailed reference viewed: 81 (17 UL)