The dye-sensitized solar cells progresses towards industrial realizations, it is recognized that some standards and agreements for the measurement of the solar cell performance and characterizations have to be made. This process must lead to internationally recognized standards adapted to this technology and other nano-enabled photovoltaics, such as the organic solar cells. The development of such methods may be slow but it somehow has to start. A meeting on this topic was held this week at Mt. Zao in Yanagata, Japan, organized by the KAST Academy of Science and Research Association RATO. The meeting was put together by researchers Hirosi Segawa sensei, Satosi Uchida sensei of Tokio Research Center RCAST and Katsuhiko Takagi sensei of KAST.
There is a broad basis of knowledge in the DSC area that some things have been done inadvertedly wrong in the past, such as the cell masking when measuring the power conversion efficiency under illumination, which led to erroneous determination of efficiencies. There is an understanding that crucial aspects of the solar cell characterization such as the measurement of current-voltage curve and the external quantum efficiency require special care because the DSC has a very slow dynamic response. It was recognized in the meeting that some broader understanding and sharing of information is needed about these very practical and important points. The meeting also showed the interest of several major industries in Japan for the DSC comercialization. In combination with some developments in Europe, these advances make it necessary to have some broad agreement of standards that will certify the quality of DSC products.