Haberkorn Niko, Gutmann Jochen S, Theato Patrick
Institute of Organic Chemistry, University of Mainz, Duesbergweg 10-14, Mainz, Germany.
ACS Nano. 2009 Jun 23;3(6):1415-22. doi: 10.1021/nn900207a.
Free-standing nanorod arrays of a thermally cross-linked semiconducting triphenylamine were fabricated on conductive ITO/glass substrates via an anodic aluminum oxide (AAO) template-assisted approach. By using a solution wetting method combined with a subsequent thermal imprinting step to fill the nanoporous structure of the template with a cross-linkable triphenylamine derivative, a polymeric replication of the AAO was obtained after thermal curing and selective removal of the template. To obtain well-aligned and free-standing nanorod arrays, aggregation and collapse of the nanorods were prevented by optimizing their aspect ratio and applying a freeze-drying technique to remove the aqueous medium after the etching step. Because of their electrochemical properties and their resistance against organic solvents after curing, these high density nanorod arrays have potential application in organic photovoltaics.
通过阳极氧化铝（AAO）模板辅助法，在导电的ITO/玻璃基板上制备了热交联半导体三苯胺的独立纳米棒阵列。通过溶液润湿法结合随后的热压印步骤，用可交联的三苯胺衍生物填充模板的纳米多孔结构，在热固化并选择性去除模板后，获得了AAO的聚合物复制品。为了获得排列良好的独立纳米棒阵列，通过优化纳米棒的纵横比并应用冷冻干燥技术在蚀刻步骤后去除水介质，防止了纳米棒的聚集和坍塌。由于其电化学性质以及固化后对有机溶剂的耐受性，这些高密度纳米棒阵列在有机光伏领域具有潜在应用。
