Phd thesis

Renewable energy is crucial for tackling the world’s climate and energy challenges. Solar cells already hold a significant portion of the global energy market, and increasing this portion is important for propelling the renewable revolution forward. In this work, a novel solar cell concept with the potential of boosting the solar cell efficiency is explored. A Si bottom cell absorbs the low-energy part of the sunlight, while an oxide top cell consisting of Cu2O and ZnO absorbs the high-energy part. Material and junction properties of the architecture is investigated electrically, optically, chemically and structurally. 

The thesis details the defect structure of Cu2O, epitaxial growth of ZnO, and the sputter growth of poly-Si. The Cu2O/Si, and Cu2O/ZnO junctions are characterized, and novel ways of realizing the shallow emitter in Si and improving the crystallinity of Cu2O are demonstrated.

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Lorem ipsum dolor sit amet consectetur adipiscing elit, pharetra sodales cursus mattis class per, potenti nostra mollis at nec urna. Sodales nam habitant dapibus tortor primis magnis pulvinar convallis, posuere aenean mollis vel curae massa feugiat libero, aliquet ut vestibulum ullamcorper sociosqu nunc fusce. Primis a viverra ligula lacus imperdiet libero sem ullamcorper tempor, nostra at venenatis lobortis neque lectus potenti rutrum euismod eros, magna aptent fringilla vulputate pretium quam enim integer. Elementum pellentesque lacus non imperdiet varius sodales montes ultricies quisque nulla ornare, nam fermentum cras hendrerit laoreet rhoncus orci etiam ullamcorper aliquet, scelerisque hac penatibus risus at porta habitant pulvinar suspendisse felis.