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The concept for a solar cell with extremely thin absorber (eta-cell) comprises a porous TiO 2 substrate covered by a CdTe film with a local thickness of 150-250 nm. At the present stage of development this type of cell exhibits a photovoltage between 600 and 700 mV and a photocurrent of 5-9 mA/cm 2 under AM1.5 illumination, indicating the feasibility of the concept. The fill factor...
We investigate the possibilities for electrodeposition of II–VI compounds on porous substrates. ZnTe and CdTe are deposited on porous TiO2 and characterised by scanning electron microscopy and electrical measurements. It is shown that CdTe can be deposited as a homogeneous film covering a highly structured substrate in conformal manner, while ZnTe is able to fill up the porous structure to a certain...
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