A dTech Co., Ltd. announced that it will launch a Zoom seminar titled “Development of Module Materials for Perovskite Solar Cells and Ensuring Long-Term Reliability” as part of its R&D development support lecture series, featuring leading experts in perovskite solar cells. For perovskite solar cells, which are expected to become next-generation photovoltaic technology, practical deployment requires both improved power conversion efficiency and long-term durability. The seminar will explain reliability technologies from two perspectives: internal “interface control” within the device and external “barrier structures.” Internal measures will cover the latest knowledge on preventing device degradation through interface treatment, optimization of crystal growth, defect passivation, and suppression of ion migration. External measures will focus on barrier technologies essential for lightweight and flexible devices, including wet-process technologies approaching vacuum deposition performance and trends in barrier films with practical examples such as Konica Minolta. The seminar will present concrete strategies for securing product lifetime through both internal and external approaches. The course is scheduled for June 23, 2026, and will be delivered live via Zoom. The theme is “Development of Module Materials for Perovskite Solar Cells and Ensuring Long-Term Reliability.” It will be held on Tuesday, June 23, 2026, from 13:00 to 17:15. The participation fee is 55,000 yen including tax, with materials expected to be distributed electronically. The program consists of three sessions. Part 1, “Key Components for Improving Reliability and Preventing Degradation in Perovskite Solar Cells,” will be presented by Kazushi Ikegami, Professor at the Faculty of Biomedical Engineering, Toin University of Yokohama. Part 2, “Development of Coating-Type High-Barrier Structures for Cost Reduction in Solar Cells,” will be presented by Yoshiyuki Suzuri, Deputy Director and Professor at the R