1. Product Overview & Specifications

Chemical Name: 4,4′,4”-Tris(carbazol-9-yl)-triphenylamine

CAS Number: 139092-78-7

Synonyms: Tris(4-carbazol-9-ylphenyl)amine; TCTA

Physical Properties:

• Molecular Weight: 765.88 g/mol
• Melting Point: 298-300°C
• Density: 1.234 g/cm³
• Refractive Index: 1.718

2. Key Applications

• OLED Fabrication: Hole-transport layer (HTL) material for organic light-emitting diodes.
• Exciplex Systems: Paired with electron-deficient materials (e.g., APDC-tPh) to generate near-infrared (NIR) emissions (700-730 nm).
• Research & Development: Used in optoelectronic studies for energy-level tuning and charge transport optimization.

3. Performance Comparison

Note: EQE = External Quantum Efficiency

4. Use Cases in OLED Technology

Case 1: NIR OLED Development

TCTA was combined with APDC-tPh to create an exciplex-based OLED emitting at 730 nm. While efficiency remains low (0.1% EQE), this system demonstrates potential for non-invasive biomedical imaging devices.

Case 2: Hole-Transport Layer Optimization

In multilayer OLED stacks, TCTA improves hole injection efficiency by 18% compared to conventional materials, reducing operating voltage by 0.3V.

5. Client Success Stories

PhotonTech Innovations (Shenzhen, China)

Integrated TCTA into flexible OLED prototypes, achieving a 15% improvement in device lifetime under high humidity (85% RH).

Luminex Display Solutions (Seoul, South Korea)

Utilized TCTA as a host material in blue OLEDs, achieving a color purity of 98.5% NTSC and power efficiency of 12 lm/W.

6. Request a Quote

For pricing, technical datasheets, or custom synthesis inquiries:

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