To build upon the rich structural diversity in the ever-increasing polymorphic phases of two-dimensional phosphorene, we propose different assembly methods (namely, the "bottom-up" and "top-down" approaches) that involve four commonly reported parent phases (i.e. the α-, β-, γ-, and δ-phosphorene) in combination with the lately reported remarkably low-energy one-dimensional defects in α-phosphorene. In doing so, we generate various periodically repeated phosphorene patterns in these so-called phosphorene flexagons and present their local electron density (via simulated scanning tunneling microscopy (STM) images). These interesting electron density patterns seen in the flexagons (mimicking symmetry patterns that one may typically see in a kaleidoscope) may assist as potential 2D templates where electron-density-guided nanopatterning and nanofabrication in complex organized nanoarchitectures are important.
Bibliographical noteFunding Information:
We acknowledge that this work is supported from the Basic Research Laboratory (BRL) Program by the National Research Foundation (NRF) of Korea (Grant No. 2016R1A4A1012929). Computational resources have been provided by the Korea Institute of Science and Technology Information (KISTI) supercomputing center (KSC-2017-C3-0007) and the Australian National Computational Infrastructure (NCI).
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All Science Journal Classification (ASJC) codes
- Materials Science(all)