Electron-beam induced current characterization of back-surface field solar cells using a chopped scanning electron microscope beam

作者：Keung L. Luke, Li‐Jen Cheng · 发表于：Journal of Applied Physics · 年份：1984 · DOI：10.1063/1.333062 · 被引用次数：7 · 研究领域：Electron and X-Ray Spectroscopy Techniques、Silicon and Solar Cell Technologies、Advanced Electron Microscopy Techniques and Applications

A chopped electron beam induced current (EBIC) technique for the characterization of back-surface field (BSF) solar cells is presented. It is shown that the effective recombination velocity of the low-high junction forming the back-surface field of BSF cells, in addition to the diffusion length and the surface recombination velocity of the surface perpendicular to both the p-n and low-high junctions, can be determined from the data provided by a single EBIC scan. The method for doing so is described and illustrated. Certain experimental considerations taken to enhance the quality of the EBIC data are also discussed.