Abstract: The invention relates to contrast media for nuclear spin tomography (or else magnetic resonance tomography, MRT) with use of the Overhauser effect, which are suitable for transferring the magnetic orientation of electron spins to adjacent proton spins.

Abstract: Known methods of producing large-surface integrated thin-film solar modules with an amorphous, poly- or microcrystalline absorber layer always comprise division and conversion structuring processes which can cause instabilities in the structuring and which are relatively expensive. According to the inventive method which can be used to fabricate substrate solar cells and superstrate solar cells, the mask which is used provides for structuring itself during the deposition of layers for the rear electrode and the absorber layer through its geometrical form. The use of a mask which can be reused as an independent element after use in this method allows for a relatively free range of possible geometric forms. This also makes possible applications inside and outside of buildings, including in the area of a window, from an esthetic and informal point of view.

Abstract: While physically cage-type molecules differ significantly, they are of great chemical similarity so that thus far they cannot be arranged in controllable structures with respect to each other. By contrast, in accordance with the invention, molecular arrangements of geometrically uniform, even periodic, structural configurations of highly precise selectable spacings and angles can be realized in a self-organizing manner by chemically modifying the molecular cages by selective connection of addends. To this end, suitable pairs of types (P′) of addends (A′, B′) which are complementary and selective relative to each other are being used. These usually bilaterally bondable addends (A′, B′) are at one end bonded to defined selectable positions of the cage molecules (A, B) and form adducts (A2, B2) therewith. The other end is structured to be chemically highly selective so that the addends (A′, B′) only connect to each other by the chemical lock and key principle.

Abstract: Solid matter quantum computers with local control accesses are based on the fixed arrangement of spins as quantum mechanical information units. Local control accesses allow the dynamic modification of the resonance frequency of individual spins and the interlinking of spins for the individual addressing of spins in order to carry out computer operations. Known local control accesses perform poorly and are difficult to produce. The invention uses the electron spins of enclosure atoms in endohedral fullerenes, which are electromagnetically interlinked (J) by a magnetic dipole-dipole interaction (105). The resonance frequency (&ohgr;) is regulated by a controlled electron transfer to or from the cage of the endohedral fullerenes (104) with an adjustable residence time. The electromagnetic link (J) is regulated by a controlled angular modification v (108) between the orientation of the external magnetic field (B) (109) and the binding vector (r) (107) of neighboring fullerenes (104).

Abstract: Known methods of producing large-surface integrated thin-film solar modules with an amorphous, poly- or microcrystalline absorber layer always comprise division and conversion structuring processes which can cause instabilities in the structuring and which are relatively expensive. According to the inventive method which can be used to fabricate substrate solar cells (116) and superstrate solar cells, the mask (100) which is used provides for structuring itself during the deposition of layers for the rear electrode (106) and the absorber layer (11) through its geometrical form. The use of a mask (110) which can be reused as an independent element after use in this method allows for a relatively free range of possible geometric forms. This also makes possible applications inside and outside of buildings, including in the area of a window, from an esthetic and informal point of view.