Silicon point contact concentrator solar cells

Microsystems enabled photovoltaics: 14.9% efficient 14μm thick crystalline silicon solar cell

“…Our cell designs are similar to the point-contact, back contacted crystalline silicon solar cells proposed by Sinton et al [15]. Key differences exist in the scale and geometry of the cells presented here with sub-millimeter lateral dimensions and thicknesses on the order of tens of microns.…”

Evolution and future prospects of inorganic photovoltaics

“…Innovations in device design and passivation continue today with the use of SiN as a passivation layer, 9 thin Si wafers to reduce cost and the commercialization of the Heterojunction with Intrinsic Thin-layers (HIT) Si solar cells which use a-Si deposited emitter and contact layers. 10 High performance single crystal Si under concentration has achieved an efficiency of 26.8% at 96 suns 11 and is currently in commercial development.…”

Solar LBIC scanning of high‐efficiency point‐contact silicon solar cells

“…The induced current response from a High Efficiency Concentrator (HECO) monocrystaline Si solar cell was mapped as a function of surface position and cell bias by using a solar light beam induced current (S-LBIC) mapping system while at the same time dynamically biasing the whole cell with an external voltage [1,2] Recombination accounts for a major portion of the reduction in quantum efficiency in these cells [3,4]. This paper examines the spatial distribution of defect mechanisms causing a reduction of collected photocurrent of the backside point-contact device structure [5] while under spot illumination.…”