J. Malzbender et al., MORPHOLOGICAL EFFECTS AND THE DIFFUSION OF IODINE IN CDTE, Journal of materials science. Materials in electronics, 6(6), 1995, pp. 397-403
The morphology of undiffused and iodine-diffused CdTe slices and its e
ffect on iodine concentration profiles is discussed. Such CdTe slices
were analysed using defect etching, scanning electron microscopy (SEM)
, infrared microscopy and secondary ion mass spectrometry (SIMS). The
results suggest that during diffusion a layer of an iodine compound fo
rms in the surface region of the CdTe while, over a limited range furt
her into the material, clusters of either this or a similar compound f
orm at defect sites causing a high degree of crystal distortion.