Voltage calibration of luminescence images of silicon solar cells
Voltage calibration of luminescence images of silicon solar cells
复制标题
DOI：
10.1063/1.4862400
复制
发表时间：
2014-01
影响因子：
3.2
通讯作者：
H. Höffler;Hasan Al-Mohtaseb;J. Haunschild;B. Michl;M. Kasemann
中科院分区：
文献类型：
--
作者：
H. Höffler;Hasan Al-Mohtaseb;J. Haunschild;B. Michl;M. Kasemann
在过去的几年中，已经引入了各种方法，利用硅太阳能电池上的发光成像来提取太阳能电池参数的空间分辨信息。几乎所有的方法都是基于将局部发光强度校准到局部结电压。然而，不同的方法使用不同的方法来将发光图像校准到局部结电压。由电压校准方法做出的假设对于正确的电压校准是基本的，并且因此对于其他相关局部太阳能电池参数的正确提取是基本的。在这项工作中，我们回顾了不同的电压校准方法，并仔细使用电路仿真结果分析的有效性和影响的基本假设。我们目前的实验结果的电压校准的发光图像的多晶硅太阳能电池使用不同的电压校准方法。我们显示的相关性，准确的电压校准进行灵敏度和…
A variety of methods extracting spatially resolved information of solar cell parameters using luminescence imaging on silicon solar cells have been introduced in the past years. Nearly, all methods base on calibrating the local luminescence intensity to local junction voltage. The different methods, however, use different approaches to calibrate the luminescence images to local junction voltage. The assumptions made by the voltage calibration approaches are fundamental for a correct voltage calibration and hence for a correct extraction of other relevant local solar cell parameters. In this work, we review the different voltage calibration approaches and analyse the validity and the effect of the underlying assumptions carefully using circuit simulation results. We present experimental results of voltage calibrated luminescence images of a multicrystalline silicon solar cell using different voltage calibration approaches. We show the relevance of accurate voltage calibration by performing a sensitivity an...