Here we report a 3-dimensional dye-sensitized solar cell (3D-DSSCs) and module simulating the fractal structure of the pine tree for capturing sunlight. Compared to traditional flat solar cells, this type of solar cell exhibits superiority of absorbing sunlight from all directions. The...

In this paper, heat transfer and air flow in a composite-wall solar-collector system with a porous absorber has been studied. The [`]unsteady' numerical simulation is conducted to analyze the performance of heat transfer and air flow in the composite wall. The excess heat is stored in the porous...