Hinken David, Schinke Carsten, Herlufsen Sandra, Schmidt Arne, Bothe Karsten, Brendel Rolf
Institute for Solar Energy Research Hamelin (ISFH), Am Ohrberg 1, 31860 Emmerthal, Germany.
Rev Sci Instrum. 2011 Mar;82(3):033706. doi: 10.1063/1.3541766.
We report in detail on the luminescence imaging setup developed within the last years in our laboratory. In this setup, the luminescence emission of silicon solar cells or silicon wafers is analyzed quantitatively. Charge carriers are excited electrically (electroluminescence) using a power supply for carrier injection or optically (photoluminescence) using a laser as illumination source. The luminescence emission arising from the radiative recombination of the stimulated charge carriers is measured spatially resolved using a camera. We give details of the various components including cameras, optical filters for electro- and photo-luminescence, the semiconductor laser and the four-quadrant power supply. We compare a silicon charged-coupled device (CCD) camera with a back-illuminated silicon CCD camera comprising an electron multiplier gain and a complementary metal oxide semiconductor indium gallium arsenide camera. For the detection of the luminescence emission of silicon we analyze the dominant noise sources along with the signal-to-noise ratio of all three cameras at different operation conditions.
我们详细报告了过去几年在我们实验室开发的发光成像装置。在该装置中，对硅太阳能电池或硅片的发光发射进行了定量分析。使用用于载流子注入的电源以电方式激发电荷载流子（电致发光），或使用激光作为照明源以光方式激发（光致发光）。使用相机在空间上分辨测量由受激电荷载流子的辐射复合产生的发光发射。我们给出了各种组件的详细信息，包括相机、用于电致发光和光致发光的光学滤波器、半导体激光器和四象限电源。我们将硅电荷耦合器件（CCD）相机与具有电子倍增增益的背照式硅CCD相机以及互补金属氧化物半导体铟镓砷相机进行了比较。为了检测硅的发光发射，我们分析了在不同操作条件下所有三台相机的主要噪声源以及信噪比。
