87 windows, EV cars, and indoor markets. Prof. Yan and his team continue to push the boundaries of technology — they broke the world record of tandem OPV efficiency and realized a certified 16.4% efficient single-junction OPV device in 2019. With funding support of HK$1.2 million from the Technology StartUp Support Scheme for Universities (TSSSU), provided by the Innovation and Technology Commission in 2019-2021, the company is due to take its research breakthroughs closer to real-world application. The mass-produced polymer photovoltaic films Prof. Yan has pioneered are the next generation for solar cells and will have a far-reaching impact on the sustainability of our planet. The recognition and awards he has received thus far barely scratch the surface of what he has achieved. In the near future, we will be thanking Prof. Yan for playing an important part in the global effort toward the sustainable development of society.