In this dissertation, we investigated a vapor-liquid-solid (VLS) synthesis of high-density lead sulfide (PbS) NW arrays and nano pine trees directly on Ti thin films, and a fabrication of photovoltaic devices based upon the PbS NWs. The as-grown NW arrays are largely vertically …
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We have performed studies on n-type and p-type cuprous oxide with and without doping by first principles methods. Generalized Gradient Approximation (GGA) is used for the geometry optimization. The total energy and the final electronic structure calculations are conducted using …