Optical characterization of amorphous silicon hydride films

摘要: Abstract The performance of solar cells can be approached from the view optical limitations (the adsorbed photon) or electrical collected carriers). In this paper we focus on behavior a-SiHx films and through these data define intrinsic a-SiHx. We present proven techniques for extraction constants thin quartz over absorption range 10−1–106 cm−1. For 104–106 cm−1 an gap EG a plot (αE) 1 2 against E comparable thickness. show utility parameter guiding materials research discuss its theoretical significance. Below utilized bothoptical photoconductivity to establish sharp exponential edge. edge has activation energy that sample dependent our it ranges 0.05 0.10. device implications are discussed.