Cadmium telluride photovoltaics
OverviewBackgroundHistoryTechnologyMaterialsRecyclingEnvironmental and health impactMarket viability
The dominant PV technology has always been based on crystalline silicon wafers. Thin films and concentrators were early attempts to lower costs. Thin films are based on using thinner semiconductor layers to absorb and convert sunlight. Concentrators lower the number of panels by using lenses or mirrors to put more sunlight on each panel.