Comparative study of As and Cu doping stability in CdSeTe absorbers
Source abstract
Abstract
Abstract The reasons behind the long-term degradation of Cu-doped CdTe thin-film solar cells have been a topic of discussion for almost two decades. Yet the underlying mechanisms of such degradation, especially interactions of Cu doping with Cl in high-performance CdSeTe devices, still lack detailed understanding. In this study, we provide a consistent theoretical analysis of the fundamental physics behind this phenomenon. We then identify the dominant device degradation mechanism that cannot be completely eliminated in Cu-doped chlorinated CdSeTe-based PV. Finally, we conclude that this key mechanism is absent in CdSeTe PV when using arsenic absorber doping, which explains the remarkable stability demonstrated by this new technology. Theoretical conclusions are supported by the results of accelerated life tests on Cu- and As-doped chlorinated CdSeTe cells.
Source: openaire · Quality: candidate unverified · Source record ↗
Research context
OpenAlex topics: Chalcogenide Semiconductor Thin Films · Quantum Dots Synthesis And Properties · Copper-based nanomaterials and applications
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
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