Article ID Journal Published Year Pages File Type
1671211 Thin Solid Films 2009 4 Pages PDF
Abstract

Co-evaporated Cu(In,Ga)Se2 (CIGSe) based solar cells with Physical Vapour Deposited (PVD) Indium Sulphide (In2S3) as buffer layer have been studied by admittance spectroscopy and current-voltage characteristics measurements. The results have been compared to those obtained with a reference CBD-CdS/CIGSe device. In darkness, the PVD-In2S3 buffer layer devices exhibit higher densities of trapping defects and low values of shunt resistance. However, under illumination we have observed an important improvement of the In2S3/CIGSe electronic transport properties. This behavior seems to be linked to the presence of a metastable defect with activation energy of 0.3 eV.

Related Topics
Physical Sciences and Engineering Materials Science Nanotechnology
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