Analysis of CdTe solar cells in relation to materials issues
Analysis of CdTe solar cells in relation to materials issues
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DOI：
10.1016/j.tsf.2004.11.011
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发表时间：
2005-06-01
期刊：
影响因子：
2.1
通讯作者：
Nollet, P
中科院分区：
文献类型：
--
作者：
Burgelman, M;Verschraegen, J;Nollet, P
到目前为止，人们已经对基于CdTe和CIGS的薄膜太阳能电池进行了广泛的研究，它们的电学和光学行为由多种不同的表征技术来表征。与此同时，数值模拟程序已经成熟，可供研究界用来帮助解释这些测量结果的一致性。一旦(或多或少)定量地描述了多个测量，则可以使用数值模拟来探索材料参数的变化(例如，特性的存在或不存在，或值范围的变化)对最终太阳能电池特性的影响。在镉镉电池中，许多研究都致力于吸附器的活化处理和背接触技术。对大量测量结果的分析已经证明了通过该装置的(有效)掺杂浓度分布的关键作用。将说明这种相对简单(但很难掌握)的材料特性如何对电池特性产生深远的影响，例如I-V曲线的翻转和翻转，还取决于照明和电压、常规和表观量子效率，以及最终的填充因子和效率。(C)2004爱思唯尔B.V.保留所有权利。
By now, extensive research is available on thin film solar cells based on CdTe and on CIGS, and their electrical and optical behaviour is characterised by a multitude of diverse characterisation techniques. At the same time, numerical simulatation programmes have matured and are available to the research community to assist in interpreting these measurements consistantly. Once multiple measurements are (more or less) quantitatively described, the numerical simulation can be used to explore the effect of a variation of materials parameter (e.g. the presence or absence of a property, or a variation in a range of values) to the final solar cell characteristics. Examples of such analysis for CdTe solar cells are shown.In CdTe cells, much research has been devoted to the activation treatment of the adsorber, and to the technology of the back contact. Analysis of ample measurements has evidenced the crucial role of the profile of the (effective) doping density through the device. It will be illustrated how this relative simple (but hardly mastered) materials property has a far reaching influence to the cell characteristics such as roll-over and cross-over of I-V curves, also in dependence on illumination and voltage, conventional and apparent quantum efficiency, and finally fill factor and efficiency. (c) 2004 Elsevier B.V. All rights reserved.