A doping-precipitated morphology in plasma-deposited a-Si: H

Eric Allan Schiff, P. D. Persans, H. Fritzsche, V. Akopyan

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A grossly inhomogeneous, noncolumnar morphology has been observed in doped, plasma-deposited hydrogenated amorphous silicon (a-Si:H) within critical ranges of the diborane to silane ratio in the gas phase. The diborane level can be as low as 5 ppm and depends both on the electrode self-bias potential and the growth rate. Undoped specimens prepared under the same deposition conditions have properties typical of device-grade a-Si:H. These morphology observations suggest a structural origin for some doping-dependent properties in a-Si:H.

Original languageEnglish (US)
Pages (from-to)92-94
Number of pages3
JournalApplied Physics Letters
Issue number2
StatePublished - 1981
Externally publishedYes


ASJC Scopus subject areas

  • Physics and Astronomy (miscellaneous)

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