frequency range

terahertz thz

Journal of photochemistry and photobiology. C, Photochemistry reviews

• 2D materials for THz optoelectronic device applications were summarized. • Emerging THz optoelectronic devices based on 2D materials were presented in detail. • 2D materials based THz shielding applications were reviewed in detail. • The challenges encountered and further developments were presented. Two-dimensional (2D) materials have become a worldwide hot topic due to their fascinating properties, including high carrier mobility, tunable bandgap, ultra-broadband optical absorption and response. The versatility of 2D materials enable it hold great potential to achieve high performance Terahertz (THz) optoelectronic devices. However, the THz radiation, range from infrared to microwave, known as the THz gap, much less investigated than that of other electromagnetic wave. Motivated by this lack of knowledge, we reviewed the recent advances of research into 2D materials based THz optoelectronic devices. Firstly, we introduced the background and motivation of this review. Then, the suitable 2D material candidates are exhibited, followed by a comprehensive review of their applications in THz generation devices, modulator, THz shielding, and photodetectors. Finally, the challenges and further development directions are concluded. We believe that some milestone investigations of 2D materials based THz optoelectronic devices will emerge soon, which will bring about great industrial revelations in 2D materials-based nanodevice commercialization.

Two-dimensional materials toward Terahertz optoelectronic device applications