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Electron Transport Layer Materials
Electron transport layer (ETL) materials are used within electronic devices to promote electron movement. Also referred to as hole blocking layer materials, their molecular structure and electronic properties ensure the selective transport of charge carriers. These semiconducting materials facilitate efficient charge transport and reduce recombination losses by aligning their energy levels with other device components. Consequently, ETL materials significantly enhance overall device performance.
The key features of electron transport layer materials include:
LUMO energy level alignment
Excellent electron mobility
Hole-blocking capability
The popular ETL material bathocuproine (BCP) has a wide bandgap, offering excellent exciton blocking properties. Selecting an electron transport layer material with the appropriate LUMO energy level, which aligns well with the cathode, is crucial to maximise charge transport efficiency.
Browse our range of high purity electron transport layer materials including TPBi, BPhen and Alq3, for highly stable and efficient devices.
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LUMO energy level alignment
