Heterojunction or composite?

  1. Hi
    If we fabricate a heterojunction from TiO[2] and lead phthalocyanine (PbPc is an organic semiconductor) by thermal evaporation technique (first a thin film of TiO[2] deposited on a substrate and then a thin film of PbPc) we just have a p-n heterojunction...

    I read a paper that have studied this heterojunction and introduced it as a composite

    Do the author's claim is incorrect?
  2. jcsd
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