In a collaborative effort, led by Professor Jiwoong Yang of DGIST and Professor Moon Kee Choi of UNIST, researchers have achieved a significant breakthrough in wearable display technology. By focusing on high-efficiency, skin-attachable perovskite pure red light-emitting devices, the team has overcome previous limitations in stability and electrical properties associated with red perovskite materials. Through innovative surface modification techniques, substituting iodine with bromine, the team has enhanced the stability and electrical performance of perovskite light-emitting layers, leading to an external quantum efficiency (EQE) of up to 19.8%.
Professor Yang emphasizes the commercial potential of this advancement, bringing pure red perovskite displays closer to reality. Professor Choi highlights the broad applicability of these newly developed devices, not only in perovskite LED-based displays but also in emerging technologies such as VR, AR, and smart wearables. Supported by the Ministry of Science and ICT, the National Research Foundation of Korea, and the Pohang Accelerator Laboratory, this research signifies a significant stride forward in the realm of wearable technology and is published in the esteemed journal "Materials Today."
