Description

N2,N7-Di-1-Naphthalenyl-N2,N7-Diphenyl-9,9'-Spirobi[9H-Fluorene]-2,7-Diamine is a high-performance organic semiconductor material belonging to the spirobifluorene-diamine class. This compound matters for its exceptional hole-transport properties, thermal stability, and morphological stability, which are critical for enhancing device efficiency and longevity. It is primarily needed by manufacturers in the organic light-emitting diode (OLED) and organic photovoltaic (OPV) industries for use in display technologies, lighting, and energy conversion applications.

Application

• Hole-Transport Layer (HTL) Material in OLED devices for displays and lighting.
• Host Material in phosphorescent OLED (PHOLED) emissive layers.
• Donor Material in the active layer of organic solar cells (OPVs).
• Key Component in the research and development of next-generation organic electronic devices.
• Charge Transport Material in organic field-effect transistors (OFETs).
• Intermediate for synthesizing more complex organic semiconducting polymers and small molecules.

Basic Information

Item	Details
Product Name	N2,N7-Di-1-Naphthalenyl-N2,N7-Diphenyl-9,9'-Spirobi[9H-Fluorene]-2,7-Diamine
CAS No.	932739-76-9
Molecular Formula	C65H40N2
Molecular Weight	849.02 g/mol
Synonyms	Spiro-NPB; 2,7-Bis[N,N-di(1-naphthyl)amino]-9,9'-spirobifluorene; 2,7-Bis[N-(1-naphthyl)-N-phenylamino]-9,9'-spirobifluorene; 2,7-Bis[N,N-di(1-naphthyl)amino]-9,9'-spirobifluorene; 2,7-Bis[N-(1-naphthyl)-N-phenylamino]-9,9'-spirobi[9H-fluorene]; N2,N7-Di-1-naphthyl-N2,N7-diphenyl-9,9'-spirobi[9H-fluorene]-2,7-diamine; Spiro-TAD (common industry abbreviation); 2,7-Bis(di-1-naphthylamino)-9,9'-spirobifluorene
EINECS	Contact for details

Quality Control

Our N2,N7-Di-1-Naphthalenyl-N2,N7-Diphenyl-9,9'-Spirobi[9H-Fluorene]-2,7-Diamine is produced under strict quality management systems to ensure batch-to-batch consistency and high purity, meeting the stringent requirements of the optoelectronics industry. Each lot is accompanied by a comprehensive Certificate of Analysis (COA) detailing purity and key performance indicators. We support customer audits and can provide material tailored to specific device performance and purity specifications.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry place at room temperature (15-25°C) under an inert atmosphere (e.g., nitrogen or argon) to prevent oxidation. Keep away from heat and incompatible materials.

Specification

Item	Specification
Appearance	Yellow to greenish-yellow powder or crystalline solid
Identification (IR)	Conforms to structure
Purity (HPLC)	≥ 99.5% (Area %)
Glass Transition Temperature (Tg)	> 150 °C
Thermal Decomposition Temperature (Td)	> 400 °C
Residual Solvents (GC)	Meet ICH guidelines
Heavy Metals	< 10 ppm

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