China-based Wuxi Utmost Light Technology (UtmoLight) has announced that it has reached a new world record of 20.5% power conversion efficiency for its perovskite mini-module with a designated area of 63.98 cm2. The result was reportedly certified by the internationally recognized test center – Japan Electrical Safety & Environment Technology Laboratories (JET).

UtmoLight plans to build production lines for manufacturing large-area perovskite solar modules to accelerate the commercialization of its perovskite photovoltaic technology.

Even though the efficiency of perovskite solar cells is fairly close to that of the crystalline silicon solar cells, its efficiency drops rapidly as module size increases, mainly due to the difficulty of preparing high-quality perovskite films over large areas by using conventional methods. UtmoLight has stated that it has mastered a large-area perovskite preparation technology which enables large-area module production without sacrificing high conversion efficiency.