Guy Beaucarne

TL;DR: In this article, three ways in which the cell efficiency of silicon solar cells may be improved by better exploitation of the solar spectrum: down-conversion (cutting one high energy photon into two low energy photons), photoluminescence (shifting photons into wavelength regions better accepted by the solar cell), and up-converting (combining low-energy photons to one high-energy photon).

TL;DR: In this paper, surface recombination velocities as low as 10 cm/s have been obtained by treated atomic layer deposition (ALD) of Al 2 O 3 layers on p-type CZ silicon wafers.

TL;DR: Backcontact cells are divided into three main classes: back-junction (BJ), emitter wrap-through (EWT), and metallisation wrapthrough (MWT), each introduced as logical descendents from conventional solar cells as discussed by the authors.

TL;DR: In this article, different process steps were developed to enhance the efficiency of polycrystalline-silicon (pc-Si) solar cells on alumina substrates made by AIC in combination with thermal chemical vapor deposition (CVD).

TL;DR: In this article, a new implantation-free lift-off process is presented, where a layer with mismatched thermal expansion coefficient with respect to the substrate is deposited, and upon cooling, the differential contraction induces a large stress field which is released by the initiation and the propagation of a crack parallel to the surface.