中文(简体)[Industrial Application] Flexible Crystalline COF Film Promotes the Development of Wearable Devices
Date: May 18, 2024
Source: Advanced Materials Information
The team from Nanjing University of Posts and Telecommunications, inspired by biological systems, has developed an interface pre assembly oriented growth (IPOG) strategy and successfully prepared large-area flexible crystalline COF films, bringing new opportunities for the development of flexible electronic products.
Technological breakthrough:
The team prepared flexible crystalline COF films with a thickness of 100-300 nanometers and an area of 20cm ² by introducing functional hydrophilic/hydrophobic chains to regulate the pre assembly behavior of molecules at the oil-water interface. By introducing flexible side chains to extend the interlayer spacing from 3.52 Å to 4.01 Å, the luminescence quenching phenomenon was effectively suppressed, resulting in a 60 fold increase in the luminescence quantum yield of the solid-state film.
Application prospects:
The COF based flexible OLED prototype device constructed based on this film has a photoelectric conversion efficiency that reaches the level of similar devices, and the emission color can be continuously changed from deep blue to white light through voltage regulation. This technology is expected to be applied to the next generation of foldable display devices and flexible sensors.
market prediction:
According to industry analysis, the size of the flexible electronics market is expected to reach 30.9 billion US dollars by 2027, with a compound annual growth rate of 21.6%. The demand for COF materials in this field will continue to grow.
