Spiro-OMeTAD (Spiro-MeOTAD)
CAS Number 207739-72-8
DSSC Dyes & Electrolytes, Electron / Hole Transport Layer Materials, High Purity Sublimed Materials, Materials, Perovskite Interface Materials, Perovskite Materials, Semiconducting Molecules
Spiro-OMeTAD, high performance HTL material
High-purity (>99%) and available online for priority dispatch
Overview | Specifications |Pricing and Options | Literature and Reviews
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) from Ossila was used in the high-impact paper (IF 29.37), Interfacing Pristine C60 onto TiO2 for Viable Flexibility in Perovskite Solar Cells by a Low-Temperature All-Solution Process, Y. Zhou et al., Adv. Energy Mater., 1800399 (2018); DOI: 10.1002/aenm.201800399; and paper (IF 39.714), In situ simultaneous photovoltaic and structural evolution of perovskite solar cells during film formation, M. Alsari et al., Energy Environ. Sci., 11, 383-393 (2018); DOI: 10.1039/C7EE03013D.
High-purity Spiro-OMeTAD (Spiro-MeOTAD) is in stock now for immediate dispatch to institutions worldwide. Please contact us for bulk orders over 100 g.
General Information
| 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 |
Spiro-OMeTAD Spiro-MeOTAD |
| 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 (by cyclic voltammetry), LUMO = -2.05 eV (HOMO - Eg) |
| Eg (optical) | 2.95 eV |
Product Details
| Purity |
Sublimed: >99.5% (HPLC) Unsublimed: >99.0% (HPLC) |
|---|---|
| Melting Point | 240 °C (approx.) |
| TGA | >360 °C (0.5% weight loss) |
| Appearance | White to pale yellow powder |
*Sublimation is a technique used to obtain ultra pure-grade chemicals. For more details about sublimation, please refer to the Sublimed Materials .
Characterisation
Pricing
| Grade | Order Code | Quantity | Price |
|---|---|---|---|
| Unsublimed (>99.0% purity) | M291 | 500 mg | £210 |
| Sublimed (>99.5% purity) | M292 | 500 mg | £300 |
| Unsublimed (>99.0% purity) | M291 | 1 g | £350 |
| Sublimed (>99.5% purity) | M292 | 1 g | £480 |
| Sublimed (>99.5% purity) | M292 | 5 g | £2100 |
| Sublimed (>99.5% purity) | M292 | 10 g | £4000 |
| Unsublimed (>99.0% purity) | M291 | 10 g | £2500 |
References
- Interface engineering of highly efficient perovskite solar cells, Huanping Zhou et al., Science, V 34, p.546 (2014).
- Sequential deposition as a route to high-performance perovskite-sensitized solar cells, Julian Burschka et al., Nature, V499 p.316 (2013).
- Nanostructured TiO2 /CH3NH3PbI3 heterojunction solar cells employing spiro-OMeTAD/Co-complex as hole-transporting material, Jun Hong Noh et al., J. Mater. Chem. A, 1, 11842-11847, DOI: 10.1039/C3TA12681A (2013).