섬유

study of surface passivation as a function of inp closed-ampoule solar cell fabrication processing variables

  • 출판일1999.03
  • 저자
  • 서지사항
  • 등록일 2016.11.02
  • 조회수 373
the effects of various surface preparation procedures, including chemical treatment and anodic or chemical oxidation, closed-ampoule diffusion conditions, and post-diffusion surface preparation and annealing conditions, on the passivating properties of inp have been investigated in order to optimize the fabrication procedures of n/sup +/p inp solar cells made by closed-ampoule diffusion of sulfur into p-type inp. the inp substrates used were p-type cd-doped to a level of 1.7*10/sup 16/ cm/sup -3/, zn-doped to levels of 2.2*10/sup 16/ and 1.2*10/sup 18/ cm/sup -3/, and n-type s-doped to 4.4*10/sup 18/ cm/sup -3/. the passivating properties have been evaluated from photoluminescence and conductance-voltage characteristics data. good agreement was found between the level of surface passivation and the composition of different surface layers as revealed by x-ray photoelectron spectroscopy (xps) analysis
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