BPBiPA
CAS Number 1256723-60-0
Electron Injection Layer Materials, Electron Transport Layer Materials, High Purity Sublimed Materials, Materials, OLED Materials, Semiconducting Molecules,
Anthracene Based Electron Transport Layer (ETL)
High purity ETL / HBL material, 9,10-Bis(4-(2-phenyl-1H-benzo[d]imidazol-1-yl)phenyl)anthracene, sublimed ≥99%
Specifications | MSDS | Literature and Reviews
BPBiPA is anisotropic electron transporting layer (ETL) material with high electron mobility of 8.4 × 10−4 cm2 V−1 s−1 in the solid state. Developed for perovskite light-emitting diodes (PeLEDs) to enhance light outcoupling efficiency, BPBiPA has an anthracene core with 2-phenyl-1H-benzo[d]imidazole attached on each end, bridged by two phenyl linkers. The 2-phenyl-1H-benzo[d]imidazole end groups can help to reduce the trap state at the interface of ETL and emitting layer due to their strong nucleophilic property.
The anisotropic molecular orientations of BPBiPA gives a low refractive index which effectively enhances the photon extraction efficiency in waveguide mode thereby improves the light outcoupling efficiency of PeLEDs. Also, with high electron mobility, BPBiPA can facilitate balanced carrier injection in PeLEDs. Green PeLEDs with BPBiPA ETL shows a record high external quantum efficiency of 32.1% and a current efficiency of 111.7 cd A−1.
General Information
| CAS Number | 1256723-60-0 |
|---|---|
| Chemical Formula | C52H34N4 |
| Molecular Weight | 714.85 g/mol |
| Absorption | λmax 350 - 400 nm (in Toluene) |
| Photoluminescence | λem 480 nm (in Toluene) |
| HOMO/LUMO | HOMO = - 5.77 eV, LUMO = - 2.70 eV |
| Synonyms | 9,10-Bis(4-(2-phenyl-1H-benzo[d]imidazol-1-yl)phenyl)anthracen |
| Classification or Family | Anthracene derivative, Sublimed materials, Electron transport layer (ETL), Hole blocking layer (HBL), OLEDs |
Product Details
| Purity | Sublimed ≥99% |
|---|---|
| Melting Point | Tg = 180 °C, Td = 465 °C (5% weight loss) |
| Appearance | Yellow powder/crystals |
Chemical Structure
MSDS Documentation
BPBiPA MSDS SheetLiterature and Reviews
- D. Zhang et al. (2017); Sterically Shielded Electron Transporting Material with Nearly 100% Internal Quantum Efficiency and Long Lifetime for Thermally Activated Delayed Fluorescent and Phosphorescent OLEDs, ACS Appl. Mater. Interfaces, 9, 22, 19040–19047; DOI: 10.1021/acsami.7b04391.
- S. Sun et al. (2024); Enhancing Light Outcoupling Efficiency via Anisotropic Low Refractive Index Electron Transporting Materials for Efficient Perovskite Light-Emitting Diodes, Adv. Mater., 36 (24), 2400421; DOI: 10.1002/adma.202400421.
- L. Cai et al. (2020); Dual Functionalization of Electron Transport Layer via Tailoring Molecular Structure for High-Performance Perovskite Light-Emitting Diode, ACS Appl. Mater. Interfaces, 12, 33, 37346–37353; DOI: 10.1021/acsami.0c09642.