Traditional 1D bar codes (with printed bars and spaces) are giving way to 2D bar codes that also include dots, hexagons, and even colors to encode more data. Bar-code scanners read 1D bar codes.

The group described its work in “Achieving 31.16 % efficiency in perovskite solar cells via synergistic Dion-Jacobson 2D-3D layer design,” pubished in Journal of Alloys and Compounds.

Jun 06, 2024: Molecular templating converts 2D metal halide perovskites to 1D nanowires (Nanowerk News) Purdue University engineers have developed a patent-pending method to synthesize high-quality, ...