Phosphorene as a Superior Gas Sensor: Selective Adsorption and Distinct <i>I</i>–<i>V</i> Response

Kou, Liangzhi; Frauenheim, Thomas; Chen, Changfeng

doi:10.1021/jz501188k

Cited by 948 publications

(675 citation statements)

References 24 publications

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“…Apart from its ability to tune the band gap between the valence band and conduction band local extrema, strain also plays a significant role in tuning the effective masses, thereby affecting the exciton anisotropy and binding strength 75. The properties of BP depends on the layer thickness,42 applied strain force,45, 48, 52, 53, 64, 76 stacking order77, 78 and external electric field,79 enabling the realization of devices for different applications such as electronics,35, 37, 80, 81, 82, 83 optoelectronics,84, 85, 86 energy storage,79, 87 saturable absorbers (SA),2, 88, 89, 90, 91, 92 pulsed lasers93, 94, 95 and sensing 96…”

Section: Structure and Fundamentals Of Phosphorenementioning

confidence: 99%

Emerging Trends in Phosphorene Fabrication towards Next Generation Devices

et al. 2017

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The challenge of science and technology is to design and make materials that will dominate the future of our society. In this context, black phosphorus has emerged as a new, intriguing two‐dimensional (2D) material, together with its monolayer, which is referred to as phosphorene. The exploration of this new 2D material demands various fabrication methods to achieve potential applications— this demand motivated this review. This article is aimed at supplementing the concrete understanding of existing phosphorene fabrication techniques, which forms the foundation for a variety of applications. Here, the major issue of the degradation encountered in realizing devices based on few‐layered black phosphorus and phosphorene is reviewed. The prospects of phosphorene in future research are also described by discussing its significance and explaining ways to advance state‐of‐art of phosphorene‐based devices. In addition, a detailed presentation on the demand for future studies to promote well‐systemized fabrication methods towards large‐area, high‐yield and perfectly protected phosphorene for the development of reliable devices in optoelectronic applications and other areas is offered.

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Section: Structure and Fundamentals Of Phosphorenementioning

confidence: 99%

Emerging Trends in Phosphorene Fabrication towards Next Generation Devices

et al. 2017

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“…They are very sensitive to external perturbations, which may make them promising candidates for various types of sensor [96,[146][147][148][149][150]. The interband optical transitions of few-layer phosphorene cover a wide spectrum range from visible to midinfrared that is important for telecommunication and solar energy harvesting [132,151,152].…”

Section: Perspectives and Challengesmentioning

confidence: 99%

Emergent elemental two-dimensional materials beyond graphene

Zhang¹,

Rubio²,

Lay³

2017

J. Phys. D: Appl. Phys.

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Two-dimensional (2D) materials may offer the ultimate scaling beyond the 5 nm gate length.The difficulty of reliably opening a band gap in graphene has led to the search for alternative, semiconducting 2D materials. Emerging classes of elemental 2D materials stand out for their compatibility with existing technologies and/or for their diverse, tunable electronic structures.Among this group, black phosphorene has recently shown superior semiconductor performances. Silicene and germanene feature Dirac-type band dispersions, much like graphene. Calculations show that most group IV and group V elements have one or more stable 2D allotropes, with properties potentially suitable for electronic and optoelectronic applications. Here, we review the advances in these fascinating elemental 2D materials and discuss progress and challenges in their applications in future opto-and nano-electronic devices.

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“…Inspired by the astonishing gas sensing performance of graphene, the sensing capability of other 2D structures such as MoS 2 [26,27], WS 2 [28,29], phosphorene [30,31], boron nitride [32,33], silicene [34,35], and germanene [36] toward various gases have been investigated.…”

Section: Introductionmentioning

confidence: 99%

DFT study of adsorption behavior of NO, CO, NO2, and NH3 molecules on graphene-like BC3: A search for highly sensitive molecular sensor

Aghaei

Monshi

Torres

et al. 2018

Applied Surface Science

248

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The adsorption behavior of toxic gas molecules (NO, CO, NO 2 , and NH 3 ) on graphene-like BC 3 are investigated using first-principle density functional theory (DFT). The most stable adsorption configurations, adsorption energies, binding distances, charge transfers, electronic band structures, and the conductance modulations are calculated to deeply understand the impacts of the molecules above on the electronic and transport properties of the BC 3 monolayer. The graphene-like BC 3 monolayer is a semiconductor with a band gap of 0.733 eV. The semi-metal graphene has a low sensitivity to the abovementioned molecules. However, it is discovered that all the above gas molecules are chemically adsorbed on the BC 3 sheet with the adsorption energies less than −1 eV. The NO 2 gas molecule is totally dissociated into NO and O species through the adsorption process, while the other gas molecules retain their molecular forms. The amounts of charge transfer upon adsorption of CO and NH 3 gas molecules on BC 3 are found to be small. Hence, the band gap changes in BC 3 as a result of interactions with CO and NH 3 are only 4.63% and 16.7%, indicating that the BC 3 -based sensor has a low and moderate sensitivity to CO and NH 3 , respectively. Contrariwise, upon adsorption of NO or NO 2 on BC 3 , a significant charge is transferred from the molecules to the BC 3 sheet, causing a semiconductor-metal transition. It is found that the BC 3 -based sensor has high potential for NO detection due to the significant conductance changes, moderate adsorption energy, and short recovery time. More excitingly, the BC 3 is a likely catalyst for dissociation of the NO 2 gas molecule. Our findings divulge promising potential of the graphene-like BC 3 as a highly sensitive molecular sensor for NO and NH 3 detection and a catalyst for NO 2 dissociation.

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Phosphorene as a Superior Gas Sensor: Selective Adsorption and Distinct I–V Response

Cited by 948 publications

References 24 publications

Emerging Trends in Phosphorene Fabrication towards Next Generation Devices

Emerging Trends in Phosphorene Fabrication towards Next Generation Devices

Emergent elemental two-dimensional materials beyond graphene

DFT study of adsorption behavior of NO, CO, NO2, and NH3 molecules on graphene-like BC3: A search for highly sensitive molecular sensor

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