General information

  • Name: Spiro-OMeTAD
  • Full name: 2,2',7,7'-Tetrakis[N,N-di(4-methoxyphenyl)amino]-9,9'-spirobifluorene
  • CAS number: 207739-72-8
  • Chemical formula: C81H68N4O8
  • Molecular weight: 1225.43 g/mol
  • Absorption: λmax = 306 nm, 385 nm in DCM
  • Photoluminescence: λmax = 429 nm in DCM
  • HOMO/LUMO: HOMO = -5.0 eV, LUMO = -2.1 eV
  • Synonyms: Spiro-MeOTAD, N2,N2,N2′,N2′,N7,N7,N7′,N7′-Octakis(4-methoxyphenyl)-9,9′-spirobi[9H-fluorene]-2,2′,7,7′-tetramine
  • Classification: Organic light-emitting diodes, White OLED materials, Perovskite-based photodiodes materials (PPD), Solid-state hole transport materials for DSSC, Solar cells
  • Purity: Sublimed: >99.5% (HPLC)
  • Melting point: >360 °C (0.5% weight loss)
  • Appearance: White to pale yellow powder

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