Nanostructured heterojunction solar cells of CdS/Cu2S were grown by simple chemical ion exchange reaction by immersing the CdS thin films in Cu ion solution at room temperature. The as-grown nanostructured thin films were annealed at 250 °C in air for improving the interface and crystallinity...

The article highlights heterogeneous patterns of pastoral development in Ethiopia. The key question is to what extent current changes may be interpreted as ‘sustainable development pathways’ in which resilience of livelihoods and natural resource bases are maintained under conditions of...