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首页> 外文会议>Compound semiconductors: thin-film photovoltaics, LEDs, and smart energy controls >OPTIMISING THE PARAMETERS FOR THE SYNTHESIS OF CuIn-NANOPARTICLES BY CHEMICAL REDUCTION METHOD FOR CHALCOPYRITE THIN FILM PRECURSORS
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OPTIMISING THE PARAMETERS FOR THE SYNTHESIS OF CuIn-NANOPARTICLES BY CHEMICAL REDUCTION METHOD FOR CHALCOPYRITE THIN FILM PRECURSORS

机译：黄铜矿薄膜前驱物化学还原法优化CuIn-纳米微粒的合成参数

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摘要

Roll-to-roll deposition techniques for the fabrication of chalcopyrite solar cells are of major interest and are a promising alternative to state of the art vacuum processes. However, for roll-to-roll processes the preparation of precursor materials like nanoparticle inks is a crucial point. In this work a study on the preparation technique of copper-indium intermetallic nanoparticles was conducted. The preparation of the nanoparticles is based on the chemical reduction of copper and indium cations with sodium borohydride. Different parameters are discussed regarding their influence on (1) size and shape of the nanoparticles, (2) Cu/In ratio within the synthesised nanoparticles and (3) yield of the synthesis. Results show a strong dependency of the Cu/In ratio of the nanoparticles and the yield of the synthesis on the synthesis parameters. The influence of different parameters like (a) the ratio of metal cations to BH4' anions, (b) the Cu~(2+)/In~(3+) cation ratio within the precursor solution and (c) the dropping rate of the copper-indium precursor solution are discussed. The Cu/In ratio within the nanoparticles can mainly be controlled by the Cu~(2+)/In~(3+) cation ratio and the dropping rate of the copper-indium precursor solution. The yield of the synthesis shows saturation behaviour depending on the ratio of metal cations to BH~(4-) anions. Shape and size of the nanoparticles are independent of the varied parameters.
机译：用于制造黄铜矿太阳能电池的卷对卷沉积技术引起了人们的极大兴趣，并且是最先进的真空工艺的有希望的替代方法。然而，对于卷对卷工艺而言，前驱体材料（如纳米粒子墨水）的制备是至关重要的。在这项工作中，对铜铟金属间纳米粒子的制备技术进行了研究。纳米颗粒的制备基于硼氢化钠对铜和铟阳离子的化学还原。讨论了有关它们对（1）纳米粒子的尺寸和形状，（2）合成纳米粒子中的Cu / In比和（3）合成产率的影响的不同参数。结果显示纳米颗粒的Cu / In比和合成产率对合成参数有很强的依赖性。不同参数的影响，例如（a）金属阳离子与BH4'阴离子的比率，（b）前体溶液中Cu〜（2 +）/ In〜（3+）阳离子的比率以及（c）滴加率讨论了铜铟前体溶液。纳米粒子中的Cu / In比可主要由Cu〜（2 +）/ In〜（3+）阳离子比和铜铟前体溶液的滴入速率控制。合成的产率显示出饱和行为，这取决于金属阳离子与BH〜（4-）阴离子的比例。纳米颗粒的形状和大小与变化的参数无关。

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  • 会议地点 San Francisco CA(US)
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    Matthias Schuster; Stefan A. Moeckel; Rachmat Adhi Wibowo; Rainer Hock; Peter J. Wellmann;

  • 作者单位

    Department Materials Science, Materials for Electronics and Energy Technology, Friedrich-Alexander-University of Erlangen-Nuernberg, Martensstr. 7, 91058 Erlangen, Germany;

    Department Materials Science, Materials for Electronics and Energy Technology, Friedrich-Alexander-University of Erlangen-Nuernberg, Martensstr. 7, 91058 Erlangen, Germany;

    Crystallography and Structure Physics, Friedrich-Alexander-University of Erlangen-Nuernberg, Staudtstr. 3, 91058 Erlangen, Germany;

    Crystallography and Structure Physics, Friedrich-Alexander-University of Erlangen-Nuernberg, Staudtstr. 3, 91058 Erlangen, Germany;

    Department Materials Science, Materials for Electronics and Energy Technology, Friedrich-Alexander-University of Erlangen-Nuernberg, Martensstr. 7, 91058 Erlangen, Germany;

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