SiDBFCz
CAS Number 1234996-95-2
High Purity Sublimed Materials, Materials, OLED Materials, Semiconducting Molecules, TADF Host Materials, TADF Materials
Silane Based PHOLED Bipolar Host
High purity PHOLED bipolar host material, sublimed ≥99%
Specifications | MSDS | Literature and Reviews
SiDBFCz is a silane-based bipolar host with high triplet energy developed for highly efficient deep-blue phosphorescent OLEDs. SiDBFCz consists of a dibenzo[b,d]furan centre with a carbazole and a triphenylsilane substituents at 2,4-positions of dibenzo[b,d]furan centre. SiDBFCz is characterized with high triplet energy over 2.9 eV and known to enhance the device operational stability dramatically due to the bond dissociation energy and the activation energy for the bond dissociation reaction in the triplet excited state.
External quantum efficiency over 19 % without any microcavity optimization is achieved for deep-blue PHOLED based on Ir(cb)3 doped SiDBFCz. The device lifetime of the SiDBFCz based PHOLED is dramatically improved for more than 1000 %, compared to the most commonly used host materials for deep-blue PHOLEDs, i.e. mCP and TSPO1, at an initial luminance of 500 cd m−2.
General Information
| CAS Number | 1234996-95-2 |
|---|---|
| Chemical Formula | C42H29NOSi |
| Molecular Weight | 591.77 g/mol |
| Absorption | λmax 310 - 360 nm (in toluene) |
| Photoluminescence | λem 373 nm (in toluene) |
| HOMO/LUMO | HOMO = - 5.64 eV, LUMO = - 2.24 eV (T1 = 2.9 eV) |
| Synonyms | 9-[4-(Triphenylsilyl)-2-dibenzofuranyl]-9H-carbazole |
| Classification or Family | Dibenzo[b,d]furan derivative, Bipolar host, Sublimed materials, PHOLEDs |
Product Details
| Purity | Sublimed ≥99% |
|---|---|
| Melting Point | Tg = 226.21 °C, Td = 337.48 °C (5% weight loss) |
| Appearance | White to light-yellow powder/crystals |
Chemical Structure
Device Structure(s)
| Device Structure | ITO (30 nm)/ BCFN:NDP9 (10 nm: 5 wt.%)/BCFN (120 nm)/Ir(dpbic)3 (10 nm)/Ir(cb)3:SiDBFCz:Ir(dpbic)3 (30 nm)/ SiDBFCz (5 nm)/ TPBi (25 nm)/ Liq (1.5 nm)/ Mg:Ag (9:1, 100 nm)[2] |
|---|---|
| Color |
 Blue light emission |
| CIE Coordinates | (0.15, 0.17) |
| Max EQE | 14.4% |
| LT50 | 13,830 h |
MSDS Documentation
SiDBFCz MSDS SheetLiterature and Reviews
- S. Ko et al. (2020); A Silane-Based Bipolar Host with High Triplet Energy for High Efficiency Deep-Blue Phosphorescent OLEDs with Improved Device Lifetime, Chem. Eur. J., 26 (35), 7767-7773; DOI: 10.1002/chem.202000018.
- K. Kim et al. (2022); Unprecedentedly Long Lifetime Over 13,000 H for Multiple Energy Transfer Channels in Deep Blue Phosphorescence Organic Light-Emitting Diodes with IR Complex Under Ciey of 0.17, Available at SSRN; DOI: 10.2139/ssrn.4065678.