TSBF
CAS Number 518997-91-6
High Purity Sublimed Materials, Materials, OLED Materials, Semiconducting Molecules, TADF Materials
TSBF, fluorescent host material for OLED devices
Low price, high-purity (>99.0%) and available online for priority dispatch
2,7-Bis(9,9-spirobifluoren-2-yl)-9,9-spirobifluorene (TSBF) has three spirobifluorene joined at 2,7-positions. Spirobifluorenes exhibit high glass transition temperatures (Tg = 231 °C) and excellent thermal and color stabilities. Therefore, derivatives such as Spiro-OMeTAD are well sought for in OLED devices.
Being sterically hindered, TSBF is normally used as fluorescent host material in OLED devices With low threshold of amplified spontaneous emission(ASE) and suppressed electroluminescence efficiency roll-off, TSBF is also a promising candidate for realising electrically pumped organic semiconductor laser diodes.
General Information
| CAS number | 518997-91-6 |
|---|---|
| Chemical formula | C75H44 |
| Molecular weight | 945.15 g/mol |
| Absorption | 350 nm in THF |
| Fluorescence | 415 nm in THF |
| HOMO/LUMO | HOMO = 6.1 eV, LUMO = 3.0 eV [1] |
| Full name | 2,7-Bis(9,9-spirobifluoren-2-yl)-9,9-spirobifluorene |
| Synonyms | 2,2'':7'',2''''-Ter-9,9'-spirobi[9H-fluorene] |
| Classification / Family | Spirobifluorene, Blue emitter, Fluorescent host materials, Electron transport layer (ETL), OLED materials, OFET materials, Laser diodes, Materials science |
Product Details
| Purity | >99% (sublimed) |
|---|---|
| Melting point | 457 °C (DSC, lit.), Tg = 231 °C (lit.) |
| Appearance | White to off-white powder/crystals |
*Sublimation is a technique used to obtain ultra pure-grade chemicals. For more details about sublimation, please refer to the Sublimed Materials.
MSDS Documentation
TSBF MSDS sheetPricing
| Grade | Order Code | Quantity | Price |
|---|---|---|---|
| Sublimed (>99% purity) | M2213A1 | 500 mg | £290 |
| Sublimed (>99% purity) | M2213A1 | 1 g | £460 |
Literature and Reviews
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Optical Properties of Oligo(9,9-diarylfluorene) Derivatives in Thin Films and Their Application for Organic Light-Emitting Field-Effect Transistors,
T. Oyamada et al., J. Phys. Chem. C 2007, 111, 1, 108-115 (2007); doi: 10.1021/jp0654056. - Low amplified spontaneous emission threshold and suppression of electroluminescence efficiency roll-off in layers doped with ter(9,9′-spirobifluorene), M. Inoue et al., Appl. Phys. Lett. 108, 133302 (2016); dio: 10.1063/1.4945596.
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Ter(9,9-diarylfluorene)s: Efficient Blue Emitter with High Electrochemical,
Morphological and Thermal Stability, K. Wong et al., J. Am. Chem. Soc., 124, 39, 11576-11577 (2002); doi: 10.1021/ja0269587.