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In this work we discuss experimental data which can explain reasons for the limited energy conversion efficiencies observed in monocrystalline, thin‐film CdTe‐based solar cells grown molecular beam epitaxy. Two kinds of samples has been investigated and discussed – p‐ and n‐type doped CdTe layers with metallic Schottky barriers and p‐i‐n heterojunctions (p‐ZnTe/i‐CdTe/n‐CdTe solar cells). Both kinds...
Deep-level transient spectroscopy was used to study the defect levels in p-type CdTe layers grown by the molecular-beam epitaxy technique on lattice-mismatched GaAs substrates. In our measurements we have observed five hole traps. Two of the traps, displaying exponential capture kinetics, have been assigned to native point defects, the Cd vacancy and a complex formed of Cd vacancy and Te antisite,...
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