Abstract: The invention relates to a skin panel (11) of an aircraft (1), comprising a laminate of at least one first metal sheet (40) and preferably first fiber-reinforced polymer layers (41) connected thereto. The skin panel (11) is connected to stiffening elements (4) made of a laminate of second metal sheets (40) and second fiber-reinforced polymer layers (41) connected thereto, provided that the second fiber-reinforced polymer layer comprises fibers having a modulus of elasticity in tension of greater than 110 GPa. The invention also relates to an aircraft or spacecraft provided with such skin sheets.

Abstract: The invention relates to a method for adhering components to a composite molding. The method comprises stacking the components provided with an appropriate bonding means, positioning a heating means (11), provided with at least one cavity (12), over at least a section of the stack, and passing a medium brought to a first temperature through the at least one cavity of the heating means, whereby the stack is brought at least partially to the first temperature, and the components are interconnected to the molding. The invention also relates to a device for implementing the method and a heatable membrane that can be applied in the method.

Abstract: A process for preparing a layer of a nano-porous metal oxide semiconductor comprising the steps of: (i) providing metal oxide semiconductor nano-particles prepared by a wet precipitation process, (ii) heating said nano-particles at a temperature in the range of 250 to 600° C., (iii) preparing a dispersion of said heat-treated nano-particles from step (ii), (iv) applying said dispersion prepared in step (iii) to a support to produce a coating; and (v) subjecting said coating to a pressure in the range of 100 to 1000 bar at a temperature below 250° C.; a layer of a nano-porous metal oxide semiconductor obtained by this process; and a photovoltaic device comprising a layer of a nano-porous metal oxide semiconductor obtained by this process.

Abstract: A process for preparing a layer of a nano-porous metal oxide semiconductor comprising the steps of: (i) providing metal oxide semiconductor nano-particles prepared by a wet precipitation process, (ii) heating said nano-particles at a temperature in the range of 250 to 600° C., (iii) preparing a dispersion of said heat-treated nano-particles from step (ii), (iv) applying said dispersion prepared in step (iii) to a support to produce a coating; and (v) subjecting said coating to a pressure in the range of 100 to 1000 bar at a temperature below 250° C.; a layer of a nano-porous metal oxide semiconductor obtained by this process; and a photovoltaic device comprising a layer of a nano-porous metal oxide semiconductor obtained by this process.

Abstract: A photovoltaic device comprising a n-type semiconductor with a band-gap of greater than 2.