Nano patterning of P3HT by thermal molding with a nickel stamp replicated from anodic aluminum oxide

One of electron donors in organic photovoltaics, P3HT nano patterns of diameter 70~75 nm, height 40~55 nm and pitch 95~105 nm were thermally molded on the area of 18 × 26 mm². They were molded by thermal molding with a nickel stamp as a mold. The nickel stamp was fabricated by nickel electroforming using a well-arrayed anodic aluminum oxide(AAO) as an original template. The study on the nano patterning of P3HT by thermal molding was performed according to the variations of temperature, molding pressure, and processing time.