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首页> 外文会议>NATO Advanced Study Institute on Photovoltaic and Photoactive Materials - Properties, Technology and Applications Sep 9-21, 2001 Sozopol, Bulgaria >STRUCTURAL AND OPTICAL PROPERTIES OF MICROCRYSTALLINE SILICON FOR SOLAR CELL APPLICATIONS
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STRUCTURAL AND OPTICAL PROPERTIES OF MICROCRYSTALLINE SILICON FOR SOLAR CELL APPLICATIONS

机译：太阳能电池用微晶硅的结构和光学性能

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摘要

Recently, microcrystalline silicon (μc-Si:H) has become a very attractive material for thin film solar cells because it is seen as a materials system that is fully compatible with the thin film technology presently used for amorphous silicon. In addition to the advantages of this technology, i.e. low temperature processes on large areas with little material consumption on foreign substrates, μc-Si:H provides the extended spectral response of crystalline silicon to the near infrared region. Due to the indirect band gap of this material, the thickness of μc-Si:H absorber layer has to be in the micrometer range for sufficient carrier generation, even when using light trapping schemes. However, light induced metastability, which is a critical issue for amorphous silicon solar cells, seems not to be a problem in this material. In contrast to (mono-)crystalline Si, μc-Si:H can not be considered as a homogeneous material. The microstructure is a complicated phase mixture of crystalline grains, grain boundaries, amorphous regions and voids. This paper is devoted to the techniques commonly used to determine the structural and optical properties of μc-Si:H and to the interpretation of the data obtained on material prepared by glow discharge techniques.
机译：近来，微晶硅（μc-Si：H）已成为薄膜太阳能电池非常有吸引力的材料，因为它被视为与目前用于非晶硅的薄膜技术完全兼容的材料系统。除了这项技术的优势（即在大面积上进行低温工艺而在异质基板上消耗很少的材料）之外，μc-Si：H还提供了结晶硅对近红外区域的扩展光谱响应。由于这种材料的间接带隙，即使使用光捕获方案，μc-Si：H吸收层的厚度也必须在微米范围内才能产生足够的载流子。然而，光诱导的亚稳性对于非晶硅太阳能电池而言是至关重要的问题，似乎在该材料中并不是问题。与（单晶）硅相反，μc-Si：H不能被视为均质材料。微观结构是晶粒，晶界，非晶区和空隙的复杂相混合物。本文致力于确定μc-Si：H的结构和光学性质的常用技术，以及对通过辉光放电技术制备的材料获得的数据的解释。

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