1,3-Bis(N-carbazolyl)benzene (mCP) for OLEDs and Organic Electronics

Introduction of mCP

1,3-Bis(N-carbazolyl)benzene, also known as mCP or 1,3-Bis(triphenylbenzene), is an organic compound consisting of a central benzene ring connected to two carbazolyl groups. It is commonly used as a hole transporting material in organic light-emitting diodes (OLEDs) due to its high thermal stability and excellent charge transport properties. The carbazolyl groups in the molecule help to facilitate the movement of positive charge carriers (holes) within the device, leading to efficient light emission.

Physicochemical Properties of mCP

• Chemical formula: C₃₀H₂₀N₂
• Appearance: White powder
• Molecular weight: 404.48 g/mol
• Absorption: λmax 292, 338 nm (in THF)
• Fluorescence: λem 345, 360 nm (in THF)
• HOMO/LUMO: HOMO = 5.9 eV, LUMO = 2.4 eV
• Melting point: 173-178 °C (lit.)
• Density: The density of 1,3-Bis(N-carbazolyl)benzene is about 1.23 g/cm³.

Applications of mCP

mCP is a popular organic semiconductor material used in various applications in the field of organic electronics. Some of the common applications of 1,3-Bis(N-carbazolyl)benzene (mCP) include:

• OLEDs (Organic Light Emitting Diodes): mCP is commonly used as a host material in OLED devices. It helps in transporting charges and improving the efficiency and stability of OLEDs.
• OLED Displays: mCP is used in the fabrication of OLED displays, including OLED TVs, smartphones, and wearable devices. Its properties make it suitable for achieving high-performance displays with vibrant colors and low power consumption.
• Hole-transport Material: In addition to its role as a host material, mCP can also function as a hole-transport material in OLED devices. It enables efficient hole injection and transport, promoting balanced charge carrier distribution within the device.
• Organic Photovoltaics: mCP is used in organic photovoltaic devices to improve charge transport and enhance the efficiency of the solar cells. It helps in converting sunlight into electricity efficiently.
• Organic Field-Effect Transistors (OFETs): mCP is used as a semiconductor material in OFETs. It enables the transport of charges in the devices, leading to the development of flexible and lightweight electronic devices.
• Organic Photoconductors: mCP is used in the fabrication of organic photoconductors, which are essential components in photocopiers, laser printers, and other optical devices. It helps in detecting light and converting it into electrical signals.
• Sensors: mCP has been explored for use in chemical and biological sensors due to its high sensitivity and selectivity. It can be employed in various sensor applications for detecting specific analytes.

Overall, 1,3-Bis(N-carbazolyl)benzene (mCP) is a versatile material with promising properties for various organic electronic applications, contributing to the advancement of technology in areas such as displays, lighting, energy harvesting, and sensing.