Scalable, anisotropic transparent paper directly from wood for light management in solar cells

We demonstrated a highly simple yet efficient “top-down” method for fabricating anisotropic transparent paper by directly shear pressing the delignified wood. The anisotropic paper with both high transmittance of ~90% and high haze of ~90% can be used as a light management coating layer to significantly improve the energy conversion efficiency of GaAs solar cells.311