Prof. Michael Grätzel, the inventor of dye-sensitized solar cells (DSCs), visited the R&D center in Dalian HeptaChroma on 25th August. Our Board Chairman Yang Xichuan had a comprehensive communication and a deep discussion with him about the DSC technology and future development. Prof. Michael Grätzel gave a high appraisal of our research work on the DSCs, and showed a special interest in our FTO product. Prof. Michael Grätzel expressed that he believe that HeptaChroma will make further great progress on the development of DSCs and will accelerate the industrialization process of DSCs in China.