Tetravalent tin complex with high electron affinity for electroluminescent applications

X. T. Tao, M. Shimomura, H. Suzuki, S. Miyata, H. Sasabe

Research output: Contribution to journalArticlepeer-review

17 Citations (Scopus)


We report the synthesis and electroluminescent properties of the organometallic complex diphenyltin bis-hydroxyquinoline (Sph2q2). The complex was prepared by the reaction of diphenyltin dichloride with 8-hydroxyquinoline and shows an absorption cutoff wavelength of 460 nm and bright photoluminescence with a peak wavelength at 508 nm. The ionization potential of Sph2q2 was determined to be ∼6.0 eV by photoemission apparatus, and the electron affinity is estimated to be 3.3 eV. Sph2q2 was used as an emitting and electron injection layer in bilayer devices. The electroluminescence (EL) properties and charge injection properties of Sph2q2 are characterized. Sph2q2 is easily soluble in common organic solvents and further modification of its properties is possible. The results indicate that tetravalent tin complexes are potential emitting and charge injection materials for EL applications.

Original languageEnglish
Pages (from-to)3522-3524
Number of pages3
JournalApplied Physics Letters
Issue number24
Publication statusPublished - 2000 Jun 12
Externally publishedYes

ASJC Scopus subject areas

  • Physics and Astronomy (miscellaneous)


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