Professor Kwanghee Lee's research team has developed next-generation solar cells that are 10 times larger

□ Professor Kwanghee Lee of the  Gwangju Institute of Science and Technology (GIST), under the auspices of the Ministry of Science, ICT and Future Planning (Minster Yang-hee Choi), has developed a new method to increase the size of perovskite solar cells to be more than 10 times larger without decreasing efficiency.

□ Perovskite solar cells continue to be developed around the world because of their advantages of having simple production techniques and high efficiency in converting electric energy from solar energy. To convert larger amounts of solar energy, the size of solar cells need to be increased. However, the efficiency of perovskite solar cells decreases sharply as its size increases. Professor Kwanghee Lee's research team has succeeded in fabricating perovskite solar cells area 10 times larger than existing 1 cm2 solar cells without any significant deterioration in efficiency.

□ On April 10, 2017, Advanced Materials published Professor Kwanghee Lee's research in a paper entitled "Achieving Large-Area Planar Perovskite Solar Cells by Introducing an Interfacial Compatibilizer," which was authored by Jinho Lee, Hongkyu Kang, Geunjin Kim, Hyungcheol Back, Junghwan Kim, Soonil Hong, Byoungwook Park, Eunhag Lee, and Kwanghee Lee.

□ Professor Kwanghee Lee said, "Our research was the first development of a high-performance, large-area perovskite solar cell. Because it can be manufactured in a large area through a low-cost solution process, our research can be applied to create new applications for solar cells, such as a semi-transparent solar cell glass panel for building. Our research will accelerate the commercialization of perovskite solar cells."