CAS Number 207739-72-8
Spiro-OMeTAD (or Spiro-MeOTAD), CAS number 207739-72-8, is one of the most studied and suitable hole transport layer materials (HTL) due to its facile implementation and high performance in organic-inorganic electronic devices. The spiro-linked molecule provides high glass transition temperature (Tg), morphological stability and easy processability while maintaining good electronic properties. Spiro-MeOTAD has been widely used in solid-state dye-sensitised solar cells (ssDSSC), organic light-emitting diodes (OLED), perovskite solar cells (PSCs) and polymer based organic solar cells (OSCs).
Spiro-OMeTAD
Spiro-MeOTAD
Sublimed: >99.5% (HPLC)
Unsublimed: >99.0% (HPLC)
CAS Number
207739-72-8
Molecular Formula
C81H68N4O8
Full Name
2,2',7,7'-Tetrakis[N,N-di(4-methoxyphenyl)amino]-9,9'-spirobifluorene
Synonyms
Mw
1225.43 g/mol
UV Absorption Max
306 nm, 385 nm (in CH2Cl2)
PL Max
429 nm (in CH2Cl2)
HOMO / LUMO
HOMO = -5.0 eV, LUMO = -2.05 eV (HOMO - Eg)
Eg (optical)
2.95 eV
Chemical Structure
Product Details
Purity
Melting Point
240 °C (approx.)
TGA
>360 °C (0.5% weight loss)
Appearance
White to pale yellow powder
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