A research team led by Professor Erik Garnett of the Center for Nanophotonics at AMOLF (FOM Institute for Atomic and Molecular Physics of the Netherlands), Professor Shannon Boettcher of the Department of Chemistry and Biochemistry at the University of Oregon, and Professor Zhiyong Fan of the Department of Electronic and Computer Engineering at HKUST (Hong Kong University of Science and Technology) reported a new efficient technique for creating functional perovskite nanowire arrays for LED and solar cell applications  using InRedox AAO membranes as an extrusion template.

The new strategy featured a simple experimental setup creating a pressure gradient to draw a perovskite solution through ALD coated 200nm InRedox AAO membranes, enabling the extrusion of free-standing nanowire arrays.  The nanowires exhibited single crystal structure and photoluminescence quantum yield as high as 29%, demonstrating the quality of the perovskite lattice.

Research on perovskite materials has increased dramatically in recent years due largely to the remarkable improvements in efficiencies of perovskite solar cells and future research is sure to build upon this exciting new technique.