Organic semiconductor heterointerfaces containing bathocuproine

I. G. Hill, A. Kahn

Research output: Contribution to journalArticlepeer-review

154 Scopus citations


The four organic-organic heterointerfaces formed by depositing the organic semiconductor bathocuproine on tris(8-hydroxy-quinoline)aluminum (Alq3), N,N′-diphenyl-N,N′-bis(1-naphthyl)-1,1′ biphenyl-4,4″ diamine (α-NPD), 4,4′-N,N′-dicarbazolyl-biphenyl (CBP), and copper phthalocyanine (CuPc) have been studied using ultraviolet photoelectron spectroscopy. The relative positions of the vacuum levels and highest occupied molecular orbital levels of the organics were measured at each interface. Within our experimental uncertainty of 100 meV, the vacuum levels were found to align at all four interfaces.

Original languageEnglish (US)
Pages (from-to)4515-4519
Number of pages5
JournalJournal of Applied Physics
Issue number8
StatePublished - Oct 15 1999

All Science Journal Classification (ASJC) codes

  • General Physics and Astronomy


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