Breakthrough Wearable Display Technology: Pure Red Perovskite Displays with Impressive EQE of 19.8%

A recent collaboration between Professor Jiwoong Yang’s team at DGIST and Professor Moon Kee Choi’s team at UNIST has resulted in significant advancements in wearable display technology. By leveraging perovskite quantum dots and employing selective surface modification techniques, the teams have overcome historical limitations of red perovskite materials, enhancing both stability and electrical properties. The substitution of iodine with bromine in the surface treatment process has played a pivotal role, enlarging perovskite structures and improving surface-to-volume ratios while maintaining crucial band gap energies. This innovation has led to the development of high-efficiency, skin-attachable perovskite pure red light-emitting devices, boasting an impressive external quantum efficiency (EQE) of up to 19.8%.

The implications of this research are vast, as it promises broader applications in fields such as virtual reality (VR), augmented reality (AR), and smart wearable devices. The development of these devices could revolutionize how we interact with technology on a daily basis, providing new opportunities for immersive experiences and smart wearables that can seamlessly integrate into our lives.

This collaborative research effort highlights the breakthrough achieved in wearable display technology through the implementation of perovskite quantum dots and selective surface modification techniques. The successful modification of red perovskite materials has led to enhanced stability and electrical properties, with the substitution of iodine with bromine playing a crucial role in enlarging perovskite structures and improving surface-to-volume ratios. The development of high-efficiency, skin-attachable perovskite pure red light-emitting devices with an impressive EQE of up to 19.8% opens up new possibilities for applications in VR, AR, and smart wearable devices.

The collaborative research effort between DGIST and UNIST not only moves us closer to the commercialization of pure red perovskite displays but also showcases the potential of perovskite materials in the realm of wearable technology. Recognized and supported by key organizations in Korea, including the Ministry of Science and ICT, the National Research Foundation