What is the fine-grained topic of the following text: Currently, the highest cell efficiencies reported in Europe for solution processed single (>9%), double (8.9%) and triple (9.6%) junction cells as well as the lowest water vapor transmission rates for transparent flexible barriers (WVTR 10-6 g/m2/day) were obtained by the partners of MUJULIMA. Only return the topic.
Efficiency rates and water vapor transmission rates for solution processed cells in Europe.