Fachbereich Chemie, Eduard-Zintl-Institut, Fachgebiet Anorganische Chemie, Technische Universität Darmstadt, Petersenstraße 18, 64287 Darmstadt, Germany.
Beilstein J Nanotechnol. 2013 Dec 10;4:868-874. doi: 10.3762/bjnano.4.98. eCollection 2013.
Polycrystalline CuInSe2 (CISe) nanorods are promising for the fabrication of highly efficient active layers in solar cells. In this work we report on a nanocasting approach, which uses track-etched polycarbonate films as hard templates for obtaining three-dimensionally (3D) arranged CISe nanorod arrays. Copper and indium ketoacidoximato complexes and selenourea were employed as molecular precursors. Arrays of parallel isolated cylindrical pores of 100 nm nominal diameter and 5 μm length were used for the infiltration of the precursor solution under inert atmosphere, followed by drying, thermal conversion into a preceramic 'green body', a subsequent dissolution of the template, and a final thermal treatment at 450 °C. The nanorods that where synthesised in this way have dimensions equal to the pore sizes of the template. Investigation of the CuInSe2 nanorod samples by spectroscopic and diffraction methods confirmed a high purity and crystallinity, and a stoichiometric composition of the CISe ternary semiconductor compound.
多晶铜铟硒（CISe）纳米棒在制备高效太阳能电池活性层方面具有广阔的应用前景。在这项工作中，我们报告了一种纳米铸造方法，该方法使用刻蚀的聚碳酸酯薄膜作为硬模板，以获得三维排列的 CISe 纳米棒阵列。铜和铟酮肟酸盐配合物和硒脲被用作分子前体。使用名义直径为 100nm、长度为 5μm 的平行隔离圆柱形孔作为惰性气氛下前体溶液的渗透，随后进行干燥、热转化为预陶瓷“生坯”，然后溶解模板，最后在 450°C 下进行热处理。以这种方式合成的纳米棒的尺寸与模板的孔径相等。通过光谱和衍射方法对 CuInSe2 纳米棒样品的研究证实了 CISe 三元半导体化合物具有高纯度、结晶度和化学计量组成。
