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Issue 15, 2019
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Highly stable phosphorene isomers based on a buckled honeycomb lattice

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Abstract

Due to their high stabilities and tuneable electronic structures, two dimensional isomers of black phosphorene (BP) have drawn great attention recently. By carefully considering the bonding characteristics of phosphorus atoms, we propose a buckled honeycomb lattice strategy to search for possible highly stable phosphorene isomers. As an example, phosphorene isomers with a unit cell size no larger than 8 atoms are fully explored and 14 isomers, including the well-known α-, β-, γ-, δ-, and ε-phosphorene, are discovered and named from P-I to P-XIV in the order of their relative stabilities. Among these isomers, P-II and P-III are two newly found isomers with superior stability comparable to BP, whose formation energies are just 0.01 and 0.03 eV per atom higher than that of BP (α-phosphorene), respectively, and both are more stable than the well-known blue phosphorene (β-phosphorene). These new phosphorene isomers exhibit a wide range of medium energy band gaps from 0.30 to 2.66 eV, various HOMO/LUMO energy levels and, therefore, can be used for various optoelectronic and device applications.

Graphical abstract: Highly stable phosphorene isomers based on a buckled honeycomb lattice

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Publication details

The article was received on 30 Jan 2019, accepted on 21 Mar 2019 and first published on 21 Mar 2019


Article type: Communication
DOI: 10.1039/C9NR00974D
Nanoscale, 2019,11, 7135-7139

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    Highly stable phosphorene isomers based on a buckled honeycomb lattice

    L. Qiu, J. Dong and F. Ding, Nanoscale, 2019, 11, 7135
    DOI: 10.1039/C9NR00974D

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