International Collaboration Activity Index: Case study of dye-sensitized solar cells
We develop the index of ICAI to comprehensively measure the international collaboration active degree. We take the dye-sensitized solar cells (DSSCs) as an empirical object. An International Collaboration Map is formed by displaying the international collaboration network geographically. Three groups, each with unique collaboration features, are formed among the 84 countries or regions.
international collaboration activity index dye-sensitized solar cells international collaboration network cluster analysis inter-country collaboration intra-continent collaboration