We are an interdisciplinary research group at the Department of Mechanical Engineering, The University of Hong Kong. Our research focuses on the study and development of optoelectronic materials, including organic semiconductors, perovskites and two-dimensional nanostructures. By studying the basic properties of these materials, we aim to promote their application in practical and innovative devices to meet the demands of sustainable development. Examples include building-integrated photovoltaics (BIPV) for solar energy harvesting, self-powered and flexible photodetectors for IoT applications, low-cost and eco-friendly lighting, radiative cooling, among other applications.