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Luminescence imaging: a powerful characterization tool for photovoltaic applications

机译:发光成像:用于光伏应用的强大表征工具

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摘要

Luminescence imaging techniques are increasingly used in photovoltaics (PV) related research and development and in the production of solar cells and modules. Intense research in this area has revealed a variety of material and device parameters that can be measured, generally with very short measurement times and high spatial resolution. While the focus of luminescence imaging R&D has so far been on traditional wafer based silicon solar cells, the principles of luminescence imaging, and its inherent benefits apply generally to other solar cell concepts and can therefore be expected to accelerate progress also with the further development and realization of advanced, so-called third generation solar cell approaches. This paper reviews some fundamental aspects of luminescence, specifically the relation between the luminescence intensity and both the minority carrier lifetime and the diode voltage. Some resulting specific luminescence imaging applications for silicon solar cells will be discussed.
机译:发光成像技术越来越多地用于光伏(PV)相关的研究和开发以及太阳能电池和模块的生产中。在该领域的大量研究表明,可以测量的材料和设备参数多种多样,通常测量时间非常短,空间分辨率很高。迄今为止,尽管发光成像研发的重点一直放在传统的基于晶片的硅太阳能电池上,但是发光成像的原理及其固有的优势通常适用于其他太阳能电池概念,因此可以预期,随着进一步的发展和发展,发光成像技术也将加速发展。实现先进的所谓的第三代太阳能电池方法。本文回顾了发光的一些基本方面,特别是发光强度与少数载流子寿命和二极管电压之间的关系。将讨论一些用于硅太阳能电池的特定发光成像应用。

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