Spiro-MeOTAD (CAS 207739-72-8)
Product Description
Spiro-MeOTAD, chemically known as 2,2′,7,7′-Tetrakis[N,N-di(4-methoxyphenyl)amino]-9,9′-spirobifluorene, is a high-purity organic semiconductor used as a hole transport material (HTM). This yellow crystalline powder is renowned for its high charge carrier mobility, amorphous structure, and excellent solubility, making it ideal for applications in perovskite solar cells, organic light-emitting diodes (OLEDs), and solid-state dye-sensitized solar cells (ssDSSCs).
Properties
Property Value Molecular Formula C81H68N4O8 Molecular Weight 1225.43 g/mol Physical State Yellow crystalline powder Purity ≥99.5% (HPLC) Solubility Soluble in chloroform, THF, toluene Glass Transition Temperature (Tg) High (enhances morphological stability) Hydrogen Bond Acceptor Count 12 Topological Polar Surface Area 86.8 Ų Rotatable Bond Count 20 Usage
Spiro-MeOTAD is a key hole transport material in optoelectronic devices. It is widely used in perovskite solar cells to improve power conversion efficiency by transporting positive charge carriers. It is also applied in OLEDs for efficient hole injection and in ssDSSCs for enhanced stability. For example, it is spin-coated onto silicon nanowires to fabricate high-efficiency hybrid solar cells.
Packaging and Transportation
Packaged in glass bottles under inert gas to preserve purity and stability. Shipped according to standard chemical transport regulations, ensuring safe delivery without compromising quality.
Storage
Store at 2-8°C under a nitrogen atmosphere in tightly sealed containers. Avoid exposure to dichloromethane, chloroform, or ethyl acetate to maintain stability.
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