Zobrazeno 1 - 10
of 25
pro vyhledávání: '"Ch. Ellert"'
Publikováno v:
Solar Energy Materials and Solar Cells. 96:71-76
The performance of micromorph silicon tandem solar cells deposited by plasma enhanced chemical vapor deposition (PECVD) at 40 MHz was investigated in a large area industrially employed reactor as a function of the crystalline fraction of the microcry
Autor:
Christoph Hollenstein, Benjamin Strahm, L. Feitknecht, L. Sansonnens, Ch. Ellert, Ulrich Kroll, Christophe Ballif, Alan Howling, Johannes Meier
Publikováno v:
Solar Energy Materials and Solar Cells. 91:495-502
Microcrystalline silicon thin film deposited by RF-PECVD and integrated in a tandem structure is a promising material for low cost photovoltaic solar cells compared to solar cells based on crystalline silicon. However, in order to allow a cost-effect
Autor:
A. Buechel, Ch. Hollenstein, Ch. Ellert, Laurent Sansonnens, Alan Howling, Heidemarie Schmidt
Publikováno v:
Journal of Vacuum Science & Technology A: Vacuum, Surfaces, and Films. 24:1425-1430
The electromagnetic standing wave effect can become the main source of nonuniformity limiting the use of very high frequency in large area reactors exceeding 1 m(2) required for industrial applications. Recently, it has been proposed and shown experi
Autor:
J.P.M. Schmitt, Ch. Hollenstein, Benjamin Strahm, L. Derendinger, Alan Howling, Ch. Ellert, L. Sansonnens
Publikováno v:
Journal of Vacuum Science & Technology A: Vacuum, Surfaces, and Films. 23:922-926
In large area reactors, a local asymmetry of the electrode area, due to lateral grounded walls, causes a perturbation in rf plasma potential, due to the redistribution of lateral rf current, which propagates along the resistive plasma between capacit
Autor:
Didier Normand, Ch. Ellert, C. Guet, M. Schmidt, O. Sublemontier, B.A. Huber, M. A. Lebeault, J. Chevaleyre, Joële Viallon
Publikováno v:
The European Physical Journal D. 20:233-242
We exposed small size-controlled lead clusters with a few hundreds of atoms to laser pulses with peak intensities up to 1015 W cm-2 and durations between 60 fs to 2.5 ps. We measured kinetic energies and ionic charge of fragments as a function of the
Publikováno v:
Applied Physics B. 72:591-597
A liquid jet of either nitrogen or argon of 20 μm diameter was exposed to intense laser fields with pulse durations between 70 fs and 250 ps, leading to intensities of 1016 W cm-2 and 1013 W cm-2, respectively. The emission of extreme UV light and s
Autor:
Didier Normand, M. Schmidt, Joële Viallon, S. Dobosz, O. Sublemontier, J. Chevaleyre, C. Guet, Ch. Ellert, M. Lezius, B.A. Huber, Christian Bordas, M.-A. Lebault
Publikováno v:
Laser and Particle Beams. 18:513-518
Rare gas or lead clusters of several hundreds to many thousands of atoms per cluster were irradiated by intense laser pulses producing peak intensities up to 1017W/cm2. Fast, highly charged fragment ions were observed by means of standard TOF mass sp
Autor:
Robert J. Buenker, Gino A. DiLabio, Aleksey B. Alekseyev, M. Yu. Ivanov, D.R. Matusek, Ch. Ellert, James S. Wright, Paul B. Corkum, Gerhard Hirsch
Publikováno v:
Physical Review A. 59:4512-4521
Highly charged molecular ions are generated in Coulomb explosion experiments involving multielectron dissociative ionization, but little is known about the precise mechanisms involved in their formation. To help improve the understanding of such expe
Autor:
Ch. Ellert, Paul B. Corkum
Publikováno v:
Physical Review A. 59:R3170-R3173
Using circular and linear laser polarization for strong-field dissociative ionization we show that iodine molecules are rotationally fixed by their own moment of inertia during the dissociative ionization with a 80-fs pulse. What seems to be alignmen
Autor:
Ch. Ellert, Henrik Stapelfeldt, David M. Rayner, James S. Wright, Eric Constant, Paul B. Corkum, Hirofumi Sakai
Publikováno v:
Philosophical Transactions of the Royal Society of London. Series A: Mathematical, Physical and Engineering Sciences. 356:329-344
The Coulomb explosion method for imaging molecular structure is combined with the femtosecond pump–probe technique. Thus the imaging method becomes flexible enough to determine molecular structure even in highly excited or transient states as a fun