Institute of Organic Chemistry, University of Mainz, 55099 Mainz, Germany.
ACS Appl Mater Interfaces. 2010 Jun;2(6):1573-80. doi: 10.1021/am100085t.
We describe the synthesis and characterization of a cross-linkable siloxane-derivatized tetraphenylbenzidine (DTMS-TPD), which was used for the fabrication of semiconducting highly ordered nanorod arrays on conductive indium tin oxide or Pt-coated substrates. The stepwise process allow fabricating of macroscopic areas of well-ordered free-standing nanorod arrays, which feature a high resistance against organic solvents, semiconducting properties and a good adhesion to the substrate. Thin films of the TPD derivate with good hole-conducting properties could be prepared by cross-linking and covalently attaching to hydroxylated substrates utilizing an initiator-free thermal curing at 160 degrees C. The nanorod arrays composed of cross-linked DTMS-TPD were fabricated by an anodic aluminum oxide (AAO) template approach. Furthermore, the nanorod arrays were investigated by a recently introduced method allowing to probe local conductivity on fragile structures. It revealed that more than 98% of the nanorods exhibit electrical conductance and consequently feature a good electrical contact to the substrate. The prepared nanorod arrays have the potential to find application in the fabrication of multilayered device architectures for building well-ordered bulk-heterojunction solar cells.
我们描述了一种可交联的硅氧烷衍生的四苯基联苯（DTMS-TPD）的合成和表征，该化合物用于在导电铟锡氧化物或 Pt 涂覆的衬底上制造半导体高度有序的纳米棒阵列。该分步过程允许制造具有高耐有机溶剂性、半导体性质和与衬底良好附着性的大面积有序独立纳米棒阵列。通过交联和与利用无引发剂的 160°C 热固化共价附着到羟基化衬底上，可以制备具有良好空穴传导性能的 TPD 衍生物的薄膜。通过氧化铝模板法（AAO）制备了由交联 DTMS-TPD 组成的纳米棒阵列。此外，通过最近引入的一种方法研究了纳米棒阵列，该方法允许在脆弱结构上探测局部电导率。结果表明，超过 98%的纳米棒具有电导性，因此与衬底具有良好的电接触。制备的纳米棒阵列有可能在制造用于构建有序体异质结太阳能电池的多层器件结构中得到应用。
