2AMPP2

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2AMPP (2-Alkyl-1,4-Naphthalenediimidebenzo-Bisimidazole) is a highly efficient organic photoelectron transfer material developed in recent years. It has great potential in the field of organic optoelectronic materials due to its excellent performance in photon-to-carrier generation. In this article, we will discuss the application field and working principle of 2AMPP.

Application Field

2AMPP is mainly used in organic optoelectronic materials and devices. It is used as a hole transport layer (HTL) and light-harvesting layer (LHL) in a variety of optoelectronic devices such as polymer solar cells, organic light-emitting diodes (OLEDs) and organic photodetectors. In addition, it can also be used as an electron-transport layer (ETL) in organic photovoltaic devices.

2AMPP is also used in high efficiency organic electroluminescence devices. It is used as an electron injection layer to inject the electrons from the cathode into the emissive layer to form more efficient and stable electroluminescence emission. Moreover, 2AMPP can also be used as an electron transporting layer in organic field-effect transistors (FETs) to enhance electron transport.

Working Principle

2-Alkyl-1,4-Naphthalenediimidebenzo-Bisimidazole (2AMPP) is a strong electron donor, and its highly conjugated surface makes it capable to absorb light and convert it to electrons. When photons warp around the 2AMPP molecules, electrons are excited from lower energy conduction band and transferred to higher valance band. These electrons can then be used to form charge carriers for devices such as OLEDs and photovoltaics.

The ability of 2AMPP to transfer electrons at relatively large distances makes it an efficient electron transport material. Its electron transport mechanism involves two steps. Firstly, light absorption creates an ‘excited state’ which consists of an exciton, and an electron-hole pair. Secondly, the electron-hole pair is dissociated, generating pairs of free holes and electrons. These free electrons and holes can then be used to drive the device.

Conclusion

2AMPP is a highly efficient organic photoelectron transfer material which has a wide range of applications in the field of organic optoelectronic materials. It is mainly used as an electron transporting layer in devices such as OLEDs, photodetectors, solar cells and field-effect transistors. Its working principle involves the absorption of photons which leads to excitons that are dissociated to generate free electrons and holes which can be used to drive the device.

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