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In contrast to the unique properties and great potential of phosphorene, which distinguish it from other 2D materials, phosphorene remains unstable under atmospheric conditions, for example, in the presence of oxygen, water, and light, due to the non-bonding pairs of electrons present at its surface [27, 63]. The unprotected surface of phosphorene develops significant roughness, causing important changes and consequent degradation in the compositional and physical features of the material. In some cases, the degradation poses a serious performance problem of phosphorene-based devices [64].