Description

2,2',7,7'-Tetrakis(Diphenylamino)-9,9'-Spirobifluorene is a high-performance organic semiconductor material belonging to the spirobifluorene family. This compound matters for its exceptional hole-transport properties and high thermal stability, making it a critical component in advanced optoelectronic devices. It is primarily needed by manufacturers in the electronics and display technology sectors for developing next-generation organic light-emitting diodes (OLEDs) and other photonic applications.

Application

• Hole-Transport Layer (HTL) in OLEDs: A key material in the fabrication of efficient and stable OLED displays and lighting panels.
• Organic Photovoltaics (OPVs): Used as a donor or hole-transport material in organic solar cells to improve charge separation and device efficiency.
• Organic Field-Effect Transistors (OFETs): Serves as an active semiconducting layer due to its favorable charge carrier mobility.
• Perovskite Solar Cells: Employed as a hole-transport material to enhance the performance and longevity of perovskite-based photovoltaic devices.
• Electroluminescent Devices: A fundamental building block in the research and development of novel light-emitting electrochemical cells (LECs).
• Chemical Sensing: Utilized in the development of fluorescent sensors and probes due to its tunable photophysical properties.
• Advanced Material Research: Serves as a precursor or core structure for synthesizing more complex organic electronic materials.

Basic Information

Product Name	2,2',7,7'-Tetrakis(Diphenylamino)-9,9'-Spirobifluorene
CAS No.	189363-47-1
Molecular Formula	C72H52N4
Molecular Weight	997.21 g/mol
Synonyms	Spiro-TAD; 2,2',7,7'-Tetrakis(N,N-diphenylamino)-9,9'-spirobifluorene; 9,9'-Spirobi[9H-fluorene]-2,2',7,7'-tetrayltetrakis[N,N-diphenylamine]; TAD; N4,N4,N4',N4',N4'',N4'',N4''',N4'''-Octaphenyl-9,9'-spirobi[9H-fluorene]-2,2',7,7'-tetramine; Hole Transport Material 1 (HTM1); Spiro-TTB.
EINECS	Contact for details

Quality Control

Our 2,2',7,7'-Tetrakis(Diphenylamino)-9,9'-Spirobifluorene is produced under strict quality management protocols to ensure batch-to-batch consistency and high purity, critical for optoelectronic performance. Products undergo rigorous analytical testing including HPLC, NMR, and elemental analysis. Certificates of Analysis (COA) detailing purity, identity, and key specifications are available upon request to support your quality assurance and R&D processes.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry place at room temperature (15-25°C). This material is light-sensitive and should be handled under inert atmosphere when appropriate to prevent degradation.

Specification

Item	Specification
Appearance	Yellow to orange powder or crystalline solid
Identification (IR)	Conforms to structure
Purity (HPLC)	≥ 98.0% (Standard Grade)
Melting Point	Contact for details
Residue on Ignition	< 0.1%
Heavy Metals	< 10 ppm

Note: Specifications can be tailored. Please contact us for the detailed technical data sheet of a specific grade.