1
|
Mondal NS, Mondal R, Bedamani Singh N, Nath S, Jana D. Electric field modulated electronic, thermoelectric and transport properties of 2D tetragonal silicene and its nanoribbons. JOURNAL OF PHYSICS. CONDENSED MATTER : AN INSTITUTE OF PHYSICS JOURNAL 2024; 36:385301. [PMID: 38897193 DOI: 10.1088/1361-648x/ad59eb] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/15/2024] [Accepted: 06/19/2024] [Indexed: 06/21/2024]
Abstract
Using both first principles and analytical approaches, we investigate the role of a transverse electric field in tuning the electrical, thermoelectric, optical and transport properties of a buckled tetragonal silicene (TS) structure. The transverse electric field transforms the linear spectrum to parabolic at the Fermi level and opens a band gap. The gap is similar at the two Dirac points present in the irreducible Brillouin zone of the TS structure and increases in proportion to the applied field strength. However, a sufficiently strong electric field converts the system into a metallic one. A comparable band opening is also seen in the TS nanoribbons. Electric field-induced semiconducting nature improves its thermoelectric properties. Estimated Debye temperature reveals its superiority over graphene in terms of thermoelectric performance. The optical response of the structures is very asymmetric. Large values of imaginary and real components of the dielectric function are seen. The absorption frequency lies in the UV region. Plasma frequencies are identified and are red-shifted with the applied field. The current-voltage characteristics of the symmetric type nanoribbons show oscillation in current whereas the voltage-rectifying capability of anti-symmetric type nanoribbons under a transverse electric field is interesting.
Collapse
Affiliation(s)
| | - Rajkumar Mondal
- Department of Physics, Nabadwip Vidyasagar College, Nabadwip 741302, India
| | - N Bedamani Singh
- Department of Physics, Nagaland University, Nagaland 797004, India
| | - Subhadip Nath
- Department of Physics, Krishnagar Government College, Krishnagar 741101, India
| | - Debnarayan Jana
- Department of Physics, University of Calcutta, 92 A. P. C. Road, Kolkata 700009, India
| |
Collapse
|
2
|
Lakhera S, Devlal K, Rana M, Dhuliya V. Influence of the substitution of different functional groups on the gas sensing and light harvesting efficiency of zero-dimensional coronene quantum dot: A first principle DFT study. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2024; 308:123737. [PMID: 38064960 DOI: 10.1016/j.saa.2023.123737] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/28/2023] [Revised: 12/01/2023] [Accepted: 12/03/2023] [Indexed: 01/13/2024]
Abstract
The present study accounts for the structural and electronic properties of a zero-dimensional coronene quantum dot (QD) and its substituted structures with seven different functional groups. The substitution of functional groups lead to the alteration of the centrosymmetric geometry of the coronene flake and thus, incredible properties were observed for the functionalized QDs. The increment in the band gap after the substitution of the functional groups was responsible for the increase in the chemical stability. The cohesive energy however decreased for the functional QDs. Fourier transform Infrared spectra were traced for all the QDs to confirm the availability of the functional groups and their participation in the chemical reactivity. After the substitution of functional groups, the extremely enhanced light harvesting efficiency of functionalized QDs was obtained. Furthermore, the sensing capability of the functionalized QDs for CO, CO2, and NH3 was also calculated and it was found that C-cyano, C-nitro, C-nitroso, C-pyrrolidine, and C-thionyl QDs have better sensing capabilities for CO2 molecules. C-pyrrolidine had the highest value of light harvesting efficiency of about 96%. This reflects the potential photosensitive candidature of C-pyrrolidine. Therefore, the present study sets a perfect benchmark for designing and fabricating efficient photosensitive materials and gas-sensing devices using the introduced QDs in the near future.
Collapse
Affiliation(s)
- Shradha Lakhera
- Department of Physics, School of Sciences, Uttarakhand Open University, Haldwani 263139, Uttarakhand, India
| | - Kamal Devlal
- Department of Physics, School of Sciences, Uttarakhand Open University, Haldwani 263139, Uttarakhand, India
| | - Meenakshi Rana
- Department of Physics, School of Sciences, Uttarakhand Open University, Haldwani 263139, Uttarakhand, India.
| | - Vivek Dhuliya
- Department of Physics, Gurukula Kangri (Deemed to be University), Haridwar 249404, Uttarakhand, India
| |
Collapse
|
3
|
Utility of hexagonal boron carbide nanosheets for removing harmful dyes: electronic study via DFT. INORG CHEM COMMUN 2022. [DOI: 10.1016/j.inoche.2022.110322] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
|
4
|
Nosheen U, Jalil A, Ilyas SZ, Illahi A, Khan SA, Hassan A. First-Principles Insight into a B 4C 3 Monolayer as a Promising Biosensor for Exhaled Breath Analysis. JOURNAL OF ELECTRONIC MATERIALS 2022; 51:6568-6578. [PMID: 36160759 PMCID: PMC9484337 DOI: 10.1007/s11664-022-09898-9] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 06/14/2022] [Accepted: 08/19/2022] [Indexed: 06/16/2023]
Abstract
Nanomaterial-based room temperature gas sensors are used as a screening tool for diagnosing various diseases through breath analysis. The stable planar structure of boron carbide (B4C3) is utilized as a base material for adsorption of human breath exhaled VOCs, namely formaldehyde, methanol, acetone, toluene along, with interfering gases of carbon dioxide and water. The adsorption energy, charge density, density of states, energy band gap variation, recovery time, sensitivity, and work function of adsorbed molecules on pristine B4C3 are analyzed by density functional theory. The computed adsorption energies of VOC are in the range of - 0.176 to - 0.238 eV, and a larger interaction distance validate the physisorption behavior of these VOCs biomarkers on pristine boron carbide monolayer. Minute changes are determined from the electronic band structure of all adsorbed systems conserving the semiconducting nature of the B4C3 monolayer. The band gap variation upon adsorption of VOCs and interfering gases is examined between 0.05 and 0.52%. The 13.63 × 10-9 s recovery time of methanol is slower among VOCs, and 0.556 × 10-9 s of carbon dioxide (CO2) is faster for desorption. The results reveal that boron carbide can be utilized as a biosensor at room temperature for the analysis of exhaled VOCs from human breath.
Collapse
Affiliation(s)
- Uzma Nosheen
- Department of Physics, Allama Iqbal Open University, Islamabad, Pakistan
| | - Abdul Jalil
- Department of Physics, Allama Iqbal Open University, Islamabad, Pakistan
| | - Syed Zafar Ilyas
- Department of Physics, Allama Iqbal Open University, Islamabad, Pakistan
| | - Ahsan Illahi
- Research in Modeling and Simulation Group (RIMS), Department of Physics, COMSATS University, Islamabad, Pakistan
| | - Sayed Ali Khan
- Department of Chemistry and Chemical, Rutgers, The State University of New Jersey, Jersey, NJ 08854 USA
| | - Ather Hassan
- Department of Physics, Allama Iqbal Open University, Islamabad, Pakistan
| |
Collapse
|
5
|
Density-functional-theory simulations of the water and ice adhesion on silicene quantum dots. Sci Rep 2022; 12:8537. [PMID: 35595838 PMCID: PMC9122909 DOI: 10.1038/s41598-022-11943-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2022] [Accepted: 04/01/2022] [Indexed: 11/08/2022] Open
Abstract
The absorption of water and ice on silicon is important to understand for many applications and safety concerns for electronic devices as most of them are fabricated using silicon. Meanwhile, recently silicene nanostructures have attracted much attention due to their potential applications in electronic devices such as gas or humidity sensors. However, for the moment, the theoretical study of the interaction between water molecules and silicene nanostructures is still rare although there is already theoretical work on the effect of water molecules on the silicene periodic structure. The specific conditions such as the finite size effect, the edge saturation of the silicene nanostructure, and the distance between the water/ice and the silicene at the initial onset of the contact have not been carefully considered before. Here we have modelled the absorption of a water molecule and a square ice on the silicene nanodot by using hybrid-exchange density-functional theory, complemented by the Van der Waals forces correction. Three different sizes of silicene nanodots have been chosen for simulations, namely \documentclass[12pt]{minimal}
\usepackage{amsmath}
\usepackage{wasysym}
\usepackage{amsfonts}
\usepackage{amssymb}
\usepackage{amsbsy}
\usepackage{mathrsfs}
\usepackage{upgreek}
\setlength{\oddsidemargin}{-69pt}
\begin{document}$$3\times 3$$\end{document}3×3, \documentclass[12pt]{minimal}
\usepackage{amsmath}
\usepackage{wasysym}
\usepackage{amsfonts}
\usepackage{amssymb}
\usepackage{amsbsy}
\usepackage{mathrsfs}
\usepackage{upgreek}
\setlength{\oddsidemargin}{-69pt}
\begin{document}$$4\times 4$$\end{document}4×4, and \documentclass[12pt]{minimal}
\usepackage{amsmath}
\usepackage{wasysym}
\usepackage{amsfonts}
\usepackage{amssymb}
\usepackage{amsbsy}
\usepackage{mathrsfs}
\usepackage{upgreek}
\setlength{\oddsidemargin}{-69pt}
\begin{document}$$5\times 5$$\end{document}5×5, with and without the hydrogen saturation on the edge. Our calculations suggest that the silicene nanodots chosen here are both hydrophilic and ice-philic. The water molecule and the square ice have tilted angles towards the silicene nanodot plane at ~ 70º and ~ 45º, respectively, which could be owing to the zig–zag structure on silicene. The absorption energies are size dependent for unsaturated silicene nanodots, whereas almost size independent for the hydrogen saturated cases. Our work on the single water molecule absorption energy on silicene nanodots is qualitatively in agreement with the previous theoretical and experimental work. However, the ice structure on silicene is yet to be validated by the relevant experiments. Our calculation results not only further complement the current paucity of water-to-silicene-nanostructure contact mechanisms, but also lead to the first study of square-ice contact mechanisms for silicene. Our findings presented here could be useful for the future design of semiconducting devices based on silicene nanostructures, especially in the humid and low-temperature environments.
Collapse
|
6
|
Tsai HS, Wang Y, Liu C, Wang T, Huo M. The elemental 2D materials beyond graphene potentially used as hazardous gas sensors for environmental protection. JOURNAL OF HAZARDOUS MATERIALS 2022; 423:127148. [PMID: 34537634 DOI: 10.1016/j.jhazmat.2021.127148] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/05/2021] [Revised: 08/23/2021] [Accepted: 09/03/2021] [Indexed: 06/13/2023]
Abstract
The intrinsic and electronic properties of elemental two-dimensional (2D) materials beyond graphene are first introduced in this review. Then the studies concerning the application of gas sensing using these 2D materials are comprehensively reviewed. On the whole, the carbon-, nitrogen-, and sulfur-based gases could be effectively detected by using most of them. For the sensing of organic vapors, the borophene, phosphorene, and arsenene may perform it well. Moreover, the G-series nerve agents might be efficiently monitored by the bismuthene. So far, there is still challenge on the material preparation due to the instability of these 2D materials under atmosphere. The synthesis or growth of materials integrated with the technique of surface protection should be associated with the device fabrication to establish a complete process for particular application. This review provides a complete and methodical guideline for scientists to further research and develop the hazardous gas sensors of these 2D materials in order to achieve the purpose of environmental protection.
Collapse
Affiliation(s)
- Hsu-Sheng Tsai
- Laboratory for Space Environment and Physical Sciences, Harbin Institute of Technology, 150001 Harbin, China; School of Physics, Harbin Institute of Technology, 150001 Harbin, China.
| | - You Wang
- School of Materials Science and Engineering, Harbin Institute of Technology, 150001 Harbin, China
| | - Chaoming Liu
- Laboratory for Space Environment and Physical Sciences, Harbin Institute of Technology, 150001 Harbin, China; School of Materials Science and Engineering, Harbin Institute of Technology, 150001 Harbin, China
| | - Tianqi Wang
- Laboratory for Space Environment and Physical Sciences, Harbin Institute of Technology, 150001 Harbin, China
| | - Mingxue Huo
- Laboratory for Space Environment and Physical Sciences, Harbin Institute of Technology, 150001 Harbin, China
| |
Collapse
|
7
|
Rajput K, He J, Frauenheim T, Roy DR. Monolayer PC 3: A promising material for environmentally toxic nitrogen-containing multi gases. JOURNAL OF HAZARDOUS MATERIALS 2022; 422:126761. [PMID: 34418836 DOI: 10.1016/j.jhazmat.2021.126761] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/15/2020] [Revised: 04/19/2021] [Accepted: 07/26/2021] [Indexed: 06/13/2023]
Abstract
Carbon and its analogous nanomaterials are beneficial for toxic gas sensors since they are used to increase the electrochemically active surface region and improve the transmission of electrons. The present article addresses a detailed investigation on the potential of the monolayer PC3 compound as a possible sensor material for environmentally toxic nitrogen-containing gases (NCGs), namely NH3, NO, and NO2. The entire work is carried out under the frameworks of density functional theory, ab-initio molecular dynamics simulations, and non-equilibrium Green's function approaches. The monolayer-gas interactions are studied with the van der Waals dispersion correction. The stability of pristine monolayer PC3 is confirmed through dynamical, mechanical, and thermal analyses. The mobility and relaxation time of 2D PC3 sensor material with NCGs are obtained in the range of 101-104 cm2 V-1 s-1 and 101-103 fs for armchair and zigzag directions, respectively. Out of six possible adsorption sites for toxic gases on the PC3 surface, the most prominent site is identified with the highest adsorption energy for all the NCGs. Considering the most stable configuration site of the NCGs, we have obtained relevant electronic properties by utilizing the band unfolding technique. The considerable adsorption energies are obtained for NO and NO2 compared to NH3. Although physisorption is observed for all the NCGs on the PC3 surface, NO2 is found to convert into NO and O at 5.05 ps (at 300 K) under molecular dynamics simulation. The maximum charge transfer (0.31e) and work function (5.17 eV) are observed for the NO2 gas molecule in the series. Along with the considerable adsorption energies for NO and NO2 gas molecules, their shorter recovery time (0.071 s and 0.037 s, respectively) from the PC3 surface also identifies 2D PC3 as a promising sensor material for those environmentally toxic gases. The experimental viability and actual implications for PC3 monolayer as NCGs sensor material are also confirmed by examining the humidity effect and transport properties with modeled sensor devices. The transport properties (I-V characteristics) reflect the significant sensitivity of PC3 monolayer toward NO and NO2 molecules. These results certainly confirm PC3 monolayer as a promising sensor material for NO and NO2 NCG molecules.
Collapse
Affiliation(s)
- Kaptan Rajput
- Materials and Biophysics Group, Department of Applied Physics, Sardar Vallabhbhai National Institute of Technology, Surat, India
| | - Junjie He
- Bremen Center for Computational Materials Science, University of Bremen, 28359 Bremen, Germany; Department of Physical and Macromolecular Chemistry & Charles University Centre of Advanced Materials, Faculty of Science, Charles University in Prague, Hlavova 8, Prague 2 128 43, Czech Republic
| | - Thomas Frauenheim
- Bremen Center for Computational Materials Science, University of Bremen, 28359 Bremen, Germany; Computational Science Research Center (CSRC) Beijing and Computational Science and Applied Research (CSAR) Institute, Shenzhen, Beijing 100193, China.
| | - Debesh R Roy
- Materials and Biophysics Group, Department of Applied Physics, Sardar Vallabhbhai National Institute of Technology, Surat, India; Bremen Center for Computational Materials Science, University of Bremen, 28359 Bremen, Germany; Hanse-Wissenschaftskolleg (HWK), Lehmkuhlenbusch 4, 27753 Delmenhorst, Germany.
| |
Collapse
|
8
|
Walia GK, Randhawa DKK, Malhi KS. Rise of silicene and its applications in gas sensing. J Mol Model 2021; 27:277. [PMID: 34482432 DOI: 10.1007/s00894-021-04892-0] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2021] [Accepted: 08/25/2021] [Indexed: 10/20/2022]
Abstract
Reviewing a subject is done to provide an insight into theoretical and conceptual background of the study. Looking back into the history of an emerging field and summarizing it in a few pages is a herculean task. Anyway, it was imperative to write a few words about the rise of silicene, its properties, and its applications as gas sensors. Currently, silicene is a growing field of interest. It is probably one of the most studied materials nowadays and scientists and researchers are studying it because of its intriguing electronic properties and potential applications in nanoelectronics. Various experimental and theoretical investigations are going on worldwide to explore the various aspects of this field. It is essential to review the literature based on investigations by various scientists in this field.
Collapse
Affiliation(s)
- Gurleen Kaur Walia
- School of Electronics and Electrical Engineering, Lovely Professional University, Punjab, Phagwara, India.
| | - Deep Kamal Kaur Randhawa
- Department of Electronics and Communication Engineering, Guru Nanak Dev University, Regional Campus, Jalandhar, India
| | - Kanwalpreet Singh Malhi
- Department of Computer Science and Engineering, UIET, Panjab University, Swami Sarvanand Giri Regional Centre, Hoshiarpur, Punjab, India
| |
Collapse
|
9
|
Younas F, Mehboob MY, Ayub K, Hussain R, Umar A, Khan MU, Irshad Z, Adnan M. Efficient Cu Decorated Inorganic B 12P 12 Nanoclusters for Sensing Toxic COCl 2 Gas: A Detailed DFT Study. JOURNAL OF COMPUTATIONAL BIOPHYSICS AND CHEMISTRY 2020. [DOI: 10.1142/s273741652150006x] [Citation(s) in RCA: 24] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Abstract
Gas sensing materials have been widely explored recently owing to their versatile environmental and agriculture monitoring applications. Phosgene (COCl2) is a toxic and harmful gas, therefore, a reliable and sensitive technique is required for monitoring its quantity in the atmosphere. In this study, pure as well as copper decorated B[Formula: see text]P[Formula: see text](Cu-BP) nanoclusters were analyzed using DFT method to investigate their specific potential for phosgene gas adsorption. Cu interaction resulted in three optimized geometries S1, S2 and S3 with interaction energies of [Formula: see text]234.52[Formula: see text]kJ/mol, [Formula: see text]214.59[Formula: see text]kJ/mol and [Formula: see text]266.45[Formula: see text]kJ/mol, respectively. In all these three cases, the COCl2 prefers to interact at the top of the cage. The phosgene molecule (COCl2) interacts with bare nanocage at a distance of 3.22[Formula: see text]Å with interaction energy of [Formula: see text]6.22[Formula: see text]kJ/mol, while the observed interaction energies of phosgene at Cu decorated B[Formula: see text]P[Formula: see text] are [Formula: see text]76.90[Formula: see text]kJ/mol, [Formula: see text]119.03[Formula: see text]kJ/mol and [Formula: see text]29.60[Formula: see text]kJ/mol, respectively. To observe the variations in electronic structure, fermi level, molecular electrostatic potential (MEP), frontier molecular orbitals (FMOs), natural bonding orbital ([Formula: see text]), softness, hardness, chemical potential and electrophilicity are calculated before and after phosgene adsorption. Energy gap reduce significantly after phosgene adsorption from 2.31[Formula: see text]eV, 2.05[Formula: see text]eV and 2.46[Formula: see text]eV to 1.54[Formula: see text]eV, 1.57[Formula: see text]eV and 2.45[Formula: see text]eV, respectively. Results of all analysis suggested that decoration of Cu significantly enhanced the adsorption power of B[Formula: see text]P[Formula: see text] nan-cluster for COCl2 molecule. Therefore, the Cu-decorated B[Formula: see text]P[Formula: see text] nanocages are considered as potential candidates for application in COCl2 sensors.
Collapse
Affiliation(s)
- Faiza Younas
- Department of Chemistry, University of Okara, Okara-56300, Pakistan
| | | | - Khurshid Ayub
- Department of Chemistry, COMSATS University, Abbottabad Campus, Abbottabad 22060, Pakistan
| | - Riaz Hussain
- Department of Chemistry, University of Okara, Okara-56300, Pakistan
| | - Ali Umar
- Department of Chemistry, University of Okara, Okara-56300, Pakistan
| | | | - Zobia Irshad
- Graduate School, Department of Chemistry, Chosun University, Gwangju 501-759, Republic of Korea
| | - Muhammad Adnan
- Graduate School, Department of Chemistry, Chosun University, Gwangju 501-759, Republic of Korea
| |
Collapse
|
10
|
Enhancing the Sensing Performance of Zigzag Graphene Nanoribbon to Detect NO, NO 2, and NH 3 Gases. SENSORS 2020; 20:s20143932. [PMID: 32679692 PMCID: PMC7412460 DOI: 10.3390/s20143932] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/23/2020] [Revised: 04/03/2020] [Accepted: 04/04/2020] [Indexed: 01/19/2023]
Abstract
In this article, a zigzag graphene nanoribbon (ZGNR)-based sensor was built utilizing the Atomistic ToolKit Virtual NanoLab (ATK-VNL), and used to detect nitric oxide (NO), nitrogen dioxide (NO2), and ammonia (NH3). The successful adsorption of these gases on the surface of the ZGNR was investigated using adsorption energy (Eads), adsorption distance (D), charge transfer (∆Q), density of states (DOS), and band structure. Among the three gases, the ZGNR showed the highest adsorption energy for NO with −0.273 eV, the smallest adsorption distance with 2.88 Å, and the highest charge transfer with −0.104 e. Moreover, the DOS results reflected a significant increase of the density at the Fermi level due to the improvement of ZGNR conductivity as a result of gas adsorption. The surface of ZGNR was then modified with an epoxy group (-O-) once, then with a hydroxyl group (-OH), and finally with both (-O-) and (-OH) groups in order to improve the adsorption capacity of ZGNR. The adsorption parameters of ZGNR were improved significantly after the modification. The highest adsorption energy was found for the case of ZGNR-O-OH-NO2 with −0.953 eV, while the highest charge transfer was found for the case of ZGNR-OH-NO with −0.146 e. Consequently, ZGNR-OH and ZGNR-O-OH can be considered as promising gas sensors for NO and NO2, respectively.
Collapse
|
11
|
Ghadiri M, Ghashghaee M, Ghambarian M. Mn-Doped black phosphorene for ultrasensitive hydrogen sulfide detection: periodic DFT calculations. Phys Chem Chem Phys 2020; 22:15549-15558. [PMID: 32608400 DOI: 10.1039/d0cp02013c] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
Abstract
This paper addresses the comparative detection capabilities of pristine (BP) and Mn-doped (MP1) black phosphorene sensors toward the noxious H2S molecule within a periodic density functional framework. The most stable configuration of the H2S molecule on MP1 preferred the placement of an S-H bond on top of the Mn dopant, while the H-S-H plane was slightly tilted with respect to the surface. The formation of the Mn-modified phosphorene sensor was found to be highly favorable (-3.79 eV), which also enhanced the stabilization of the H2S molecule (-0.85 eV at HSE06/TZVP). The electronic band structures revealed a direct-to-indirect transition and the observation of an n-type semiconductor through Mn doping. The results indicated that the pristine phosphorene could be converted into an ultrasensitive reusable H2S nanosensor in terms of both electric conductance (3747) and work function (11 times more sensitive) through Mn doping. The new sensor was also highly selective, with a sensitivity ratio of at least 52.6 with respect to the air components. The recovery time of the Mn-doped material (2.7 s at ambient temperature) was more promising than that of BP from a practical point of view. More discussion of the material is presented with the electronic properties, frontier molecular orbitals, and density of states at rest and under operating conditions.
Collapse
Affiliation(s)
- Mahdi Ghadiri
- Informetrics Research Group, Ton Duc Thang University, Ho Chi Minh City, Vietnam
| | | | | |
Collapse
|
12
|
Zhao Z, Yong Y, Zhou Q, Kuang Y, Li X. Gas-Sensing Properties of the SiC Monolayer and Bilayer: A Density Functional Theory Study. ACS OMEGA 2020; 5:12364-12373. [PMID: 32548420 PMCID: PMC7271371 DOI: 10.1021/acsomega.0c01084] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 03/11/2020] [Accepted: 05/11/2020] [Indexed: 06/11/2023]
Abstract
Using density functional theory calculations, the adsorption of gaseous molecules (NO, NO2, NH3, SO2, CO, HCN, O2, H2, N2, CO2, and H2O) on the graphitic SiC monolayer and bilayer has been investigated to explore the possibilities in gas sensors for NO, NO2, and NH3 detection. The strong adsorption of NO2 and SO2 on the SiC monolayer precludes its applications in nitride gas sensors. The nitride gases (NO, NO2, and NH3) are chemisorbed on the SiC bilayer with moderate adsorption energies and apparent charge transfer, while the other molecules are all physisorbed. Further, the bilayer can effectively weaken the adsorption strength of NO2 and SO2 molecules, that is, NO2 molecules are only weakly chemisorbed on the SiC bilayer with an E ads of -0.62 eV, while SO2 are physisorbed on the bilayer. These results indicate that the SiC bilayer can serve as a gas sensor to detect NO, NO2, and NH3 gases with excellent performance (high sensitivity, high selectivity, and rapid recovery time). Moreover, compared with other molecular adsorptions, the adsorption of NH3 molecules significantly changes the work function of the SiC monolayer and bilayer, indicating that they can be used as optical gas sensors for NH3 detection.
Collapse
Affiliation(s)
- Zijia Zhao
- School of Physics
and Engineering, Henan Key Laboratory of Photoelectric Energy Storage
Materials and Applications, Henan University
of Science and Technology, Luoyang 471023, China
| | - Yongliang Yong
- School of Physics
and Engineering, Henan Key Laboratory of Photoelectric Energy Storage
Materials and Applications, Henan University
of Science and Technology, Luoyang 471023, China
| | - Qingxiao Zhou
- School of Physics
and Engineering, Henan Key Laboratory of Photoelectric Energy Storage
Materials and Applications, Henan University
of Science and Technology, Luoyang 471023, China
| | - Yanmin Kuang
- Institute
of Photobiophysics, School of Physics and Electronics, Henan University, Kaifeng 475004, China
| | - Xiaohong Li
- School of Physics
and Engineering, Henan Key Laboratory of Photoelectric Energy Storage
Materials and Applications, Henan University
of Science and Technology, Luoyang 471023, China
| |
Collapse
|
13
|
Aldahhak H, Powroźnik P, Pander P, Jakubik W, Dias FB, Schmidt WG, Gerstmann U, Krzywiecki M. Toward Efficient Toxic-Gas Detectors: Exploring Molecular Interactions of Sarin and Dimethyl Methylphosphonate with Metal-Centered Phthalocyanine Structures. THE JOURNAL OF PHYSICAL CHEMISTRY. C, NANOMATERIALS AND INTERFACES 2020; 124:6090-6102. [PMID: 32952768 PMCID: PMC7497713 DOI: 10.1021/acs.jpcc.9b11116] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/28/2019] [Revised: 02/11/2020] [Indexed: 05/03/2023]
Abstract
The rapid and reliable detection of lethal agents such as sarin is of increasing importance. Here, density-functional theory (DFT) is used to compare the interaction of sarin with single-metal-centered phthalocyanine (MPc) and MPc layer structures to a benign model system, i.e., the adsorption of dimethyl methylphosphonate (DMMP). The calculations show that sarin and DMMP behave nearly identical to the various MPcs studied. Among NiPc, CuPc, CoPc, and zinc phthalocyanine (ZnPc), we find the interaction of both sarin and DMMP to be the strongest with ZnPc, both in terms of interaction energy and adsorption-induced work function changes. ZnPc is thus proposed as a promising sensor for sarin detection. Using X-ray photoelectron spectroscopy, the theoretically predicted charge transfer from DMMP to ZnPc is confirmed and identified as a key component in the sensing mechanism.
Collapse
Affiliation(s)
- Hazem Aldahhak
- Lehrstuhl
für Theoretische Materialphysik, Universität Paderborn, 33095 Paderborn, Germany
- E-mail:
| | - Paulina Powroźnik
- Lehrstuhl
für Theoretische Materialphysik, Universität Paderborn, 33095 Paderborn, Germany
- Institute
of Physics—Center for Science and Education, Silesian University of Technology, S. Konarskiego Str. 22B, 44-100 Gliwice, Poland
| | - Piotr Pander
- Department
of Physics, Durham University, South Road, Durham DH1 3LE, United
Kingdom
| | - Wiesław Jakubik
- Institute
of Physics—Center for Science and Education, Silesian University of Technology, S. Konarskiego Str. 22B, 44-100 Gliwice, Poland
| | - Fernando B. Dias
- Department
of Physics, Durham University, South Road, Durham DH1 3LE, United
Kingdom
| | - Wolf Gero Schmidt
- Lehrstuhl
für Theoretische Materialphysik, Universität Paderborn, 33095 Paderborn, Germany
| | - Uwe Gerstmann
- Lehrstuhl
für Theoretische Materialphysik, Universität Paderborn, 33095 Paderborn, Germany
| | - Maciej Krzywiecki
- Institute
of Physics—Center for Science and Education, Silesian University of Technology, S. Konarskiego Str. 22B, 44-100 Gliwice, Poland
- E-mail:
| |
Collapse
|
14
|
Sagiv A, Mansour E, Semiat R, Haick H. Quantitative Measures of Reliability and Sensitivity of Nanoparticle-Based Sensors in Detecting Volatile Organic Compounds. ACS OMEGA 2019; 4:19983-19990. [PMID: 31788632 PMCID: PMC6882141 DOI: 10.1021/acsomega.9b02929] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 09/09/2019] [Accepted: 10/10/2019] [Indexed: 06/10/2023]
Abstract
We herein provide quantitative measures of sensors' reliability and sensitivity as a function of the sensor's capacity (maximum detection signal or saturation state) in addition to other adsorption-desorption parameters that define the detection signals toward volatile organic compounds (VOCs). The measures we have developed show differentiation between irregular dispersed points of sensors with low and high capacities. We show that the sharpest capacity that separates between the two types of distribution points, viz the reliability limit (RL), is tightly linked with the desorption constant k d. Less sharp RLs give interpretations of other reliability indicators. RL also provides information about the reliability of detecting signals of VOCs for a given sensor and sensors for a particular VOC. We show that sensors with high capacities are more reliable and sensitive to detecting signals of VOCs than sensors with lower capacities.
Collapse
|
15
|
|
16
|
Zhou S, Pei W, Zhao J, Du A. Silicene catalysts for CO 2 hydrogenation: the number of layers controls selectivity. NANOSCALE 2019; 11:7734-7743. [PMID: 30949654 DOI: 10.1039/c9nr01336a] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
Hydrogenation of carbon dioxide (CO2) is among the most promising approaches for reclaiming the major greenhouse gases to produce fuels and chemicals. Developing catalysts composed of natural abundant, economical and eco-friendly elements is critical for the industrialization of this technology. Silicon satisfies all these requirements but lacks activity. Using first-principles calculations, we show for the first time that the two-dimensional phase of silicon, i.e., mono- and few-layer silicene supported by a Ag(111) substrate, exhibits superior catalytic activity for CO2 hydrogenation, with selectivity being intrinsically controlled by the number of layers. The supported silicene monolayer as a catalyst leads to the formation of carbon monoxide, formic acid and formaldehyde, while the formation of methanol and methane is favored on bilayer silicene on the Ag substrate. The key parameters governing activity and selectivity are the densities and energy levels of surface dangling bond states, which in turn are mediated by the substrate coupling and covalent interaction between silicene layers. These theoretical results elucidate the fundamental principles for tailoring the catalytic properties of non-metal materials by controlling the number of layers and manipulating the surface states and will advance the development of silicon-based catalysts for renewable energy technologies.
Collapse
Affiliation(s)
- Si Zhou
- Key Laboratory of Materials Modification by Laser, Ion and Electron Beams, Ministry of Education, Dalian University of Technology, Dalian 116024, China.
| | | | | | | |
Collapse
|
17
|
Osborne DA, Morishita T, Tawfik SA, Yayama T, Spencer MJS. Adsorption of toxic gases on silicene/Ag(111). Phys Chem Chem Phys 2019; 21:17521-17537. [PMID: 31198924 DOI: 10.1039/c9cp01901d] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Silicene/Ag(111) demonstrates many unique properties, and shows potential in sensing and storage applications of toxic gases such as SO2, NO2 and H2S.
Collapse
Affiliation(s)
| | - Tetsuya Morishita
- Research Center for Computational Design of Advanced Functional Materials (CD-FMat)
- National Institute of Advanced Industrial Science and Technology (AIST)
- Tsukuba 305-8568
- Japan
- Mathematics for Advanced Materials Open Innovation Laboratory (MathAM-OIL)
| | | | - Tomoe Yayama
- Research Center for Computational Design of Advanced Functional Materials (CD-FMat)
- National Institute of Advanced Industrial Science and Technology (AIST)
- Tsukuba 305-8568
- Japan
| | | |
Collapse
|
18
|
Individual Gas Molecules Detection Using Zinc Oxide–Graphene Hybrid Nanosensor: A DFT Study. C — JOURNAL OF CARBON RESEARCH 2018. [DOI: 10.3390/c4030044] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
Surface modification is a reliable method to enhance the sensing properties of pristine graphene by increasing active sites on its surface. Herein, we investigate the interactions of the gas molecules such as NH3, NO, NO2, H2O, and H2S with a zinc oxide (ZnO)–graphene hybrid nanostructure. Using first-principles density functional theory (DFT), the effects of gas adsorption on the electronic and transport properties of the sensor are examined. The computations show that the sensitivity of the pristine graphene to the above gas molecules is considerably improved after hybridization with zinc oxide. The sensor shows low sensitivity to the NH3 and H2O because of the hydrogen-bonding interactions between the gas molecules and the sensor. Owing to observable alterations in the conductance, large charge transfer, and high adsorption energy; the sensor possesses extraordinary potential for NO and NO2 detection. Interestingly, the H2S gas is totally dissociated through the adsorption process, and a large number of electrons are transferred from the molecule to the sensor, resulting in a substantial change in the conductance of the sensor. As a result, the ZnO–graphene nanosensor might be an auspicious catalyst for H2S dissociation. Our findings open new doors for environment and energy research applications at the nanoscale.
Collapse
|
19
|
Gas-sensing properties of armchair silicene nanoribbons towards carbon-based gases with single-molecule resolution. Struct Chem 2018. [DOI: 10.1007/s11224-018-1170-9] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
|
20
|
Zhou Q, Yong Y, Su X, Ju W, Fu Z, Wang C, Li X. Adsorption sensitivity of defected graphene towards NO molecule: a DFT study. JOURNAL OF THE IRANIAN CHEMICAL SOCIETY 2018. [DOI: 10.1007/s13738-018-1373-4] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
|
21
|
Walia GK, Randhawa DKK. Adsorption and dissociation of sulfur-based toxic gas molecules on silicene nanoribbons: a quest for high-performance gas sensors and catalysts. J Mol Model 2018; 24:94. [DOI: 10.1007/s00894-018-3631-x] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2017] [Accepted: 03/06/2018] [Indexed: 11/28/2022]
|
22
|
Rad AS, Aghaei SM, Pazoki H, Binaeian E, Mirzaei M. Surface interaction of H2
O and H2
S onto Ca12
O12
nanocluster: Quantum-chemical analyses. SURF INTERFACE ANAL 2018. [DOI: 10.1002/sia.6382] [Citation(s) in RCA: 40] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Ali Shokuhi Rad
- Department of Chemical Engineering; Qaemshahr Branch, Islamic Azad University; Qaemshahr Iran
| | - Sadegh Mehdi Aghaei
- Quantum Electronic Structures Technology Laboratory, Department of Electrical and Computer Engineering; Florida International University; Miami FL 33174 USA
| | - Hossein Pazoki
- Department of Chemical Engineering; Qaemshahr Branch, Islamic Azad University; Qaemshahr Iran
| | - Ehsan Binaeian
- Department of Chemical Engineering; Qaemshahr Branch, Islamic Azad University; Qaemshahr Iran
| | - Mahmoud Mirzaei
- Bioinformatics Research Center, School of Pharmacy and Pharmaceutical Sciences; Isfahan University of Medical Sciences; Isfahan Iran
| |
Collapse
|
23
|
Mykhailenko OV, Prylutskyy YI, Кomarov IV, Strungar AV. Structure and Thermal Stability of Co- and Fe - Intercalated Double Silicene Layers. NANOSCALE RESEARCH LETTERS 2017; 12:110. [PMID: 28209028 PMCID: PMC5307399 DOI: 10.1186/s11671-017-1874-6] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/15/2016] [Accepted: 01/27/2017] [Indexed: 06/06/2023]
Abstract
The arrangement of Fe and Co atoms between two silicene planes was theoretically investigated. The research has shown that below 500 K Co atoms form stable lattices-"hexagonal" (with the lattice parameters 0.635 nm of AB configuration) and cubic (with the lattice parameter of 0.244 nm), whereas Fe atoms form cubic lattices only (with the lattice parameter of 0.281 nm). The system intercalated with Co atoms is stable enough at high temperatures up to ~625 K, while the Fe-silicene system is stable only at ~770 K. The silicene UV-spectrum depending on the intercalate concentration and association constant of the "silicene-intercalate" system was calculated.
Collapse
Affiliation(s)
- O. V. Mykhailenko
- Taras Shevchenko National University of Kyiv, Volodymyrska Str., 64, 01601 Kyiv, Ukraine
| | - Yu I. Prylutskyy
- Taras Shevchenko National University of Kyiv, Volodymyrska Str., 64, 01601 Kyiv, Ukraine
| | - I. V. Кomarov
- Taras Shevchenko National University of Kyiv, Volodymyrska Str., 64, 01601 Kyiv, Ukraine
| | - A. V. Strungar
- Vernadsky National Library of Ukraine, Holosiivskyi ave., 3, 03039 Kyiv, Ukraine
| |
Collapse
|
24
|
Rad AS, Aghaei SM, Aali E, Peyravi M, Jahanshahi M. Application of chromium‐doped fullerene as a carrier for thymine and uracil nucleotides: Comprehensive density functional theory calculations. Appl Organomet Chem 2017. [DOI: 10.1002/aoc.4070] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
Affiliation(s)
- Ali Shokuhi Rad
- Department of Chemical Engineering, Qaemshahr BranchIslamic Azad University Qaemshahr Iran
| | - Sadegh Mehdi Aghaei
- Quantum Electronic Structures Technology Lab, Department of Electrical and Computer EngineeringFlorida International University Miami Florida 33174 U.S.A
| | - Elaheh Aali
- Department of Chemical Engineering, Qaemshahr BranchIslamic Azad University Qaemshahr Iran
| | - Majid Peyravi
- Faculty of Chemical EngineeringBabol University of Technology Babol Iran
| | - Mohsen Jahanshahi
- Faculty of Chemical EngineeringBabol University of Technology Babol Iran
| |
Collapse
|
25
|
Walia GK, Randhawa DKK. Electronic and transport properties of silicene-based ammonia nanosensors: an ab initio study. Struct Chem 2017. [DOI: 10.1007/s11224-017-1025-9] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
|
26
|
Shokuhi Rad A. High ozone chemisorption by using metal–cluster complexes: a DFT study on the nickel-decorated B12P12 nanoclusters. CAN J CHEM 2017. [DOI: 10.1139/cjc-2017-0204] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
In the present study, by using first-principle study within the density functional theory (DFT), we investigated the ozone (O3) chemisorption on the surface of pristine and nickel-decorated B12P12 nanoclusters. The important emphasis of this study is to follow changes in the electronic structures of the aforementioned nanoclusters upon adsorption of the O3 molecule. Although we found strong chemisorption of O3 on a pristine nanocluster (–282.7 kJ/mol), significant increases in adsorption were found by modifying the nanocluster’s surface. Firstly, we found there are three possible sites on the surface of the nanocluster for nickel (Ni) decoration. For each Ni-decorated nanocluster, we searched its potential for adsorption of O3 by using quantum chemical calculations. Depending on the location of decorated Ni, we found considerable increased values of O3 adsorption energy (–340.8, –376.8, and –382.4 kJ/mol). We carried out calculations by taking into account the values of adsorption energy, bond distance, dipole moment study, charge analysis, frontier orbital analysis, and density of states of all relaxed systems.
Collapse
Affiliation(s)
- Ali Shokuhi Rad
- Department of Chemical Engineering, Qaemshahr Branch, Islamic Azad University, Qaemshahr, Iran
- Department of Chemical Engineering, Qaemshahr Branch, Islamic Azad University, Qaemshahr, Iran
| |
Collapse
|
27
|
Rad AS, Aghaei SM, Poralijan V, Peyravi M, Mirzaei M. Application of pristine and Ni-decorated B 12 P 12 nano-clusters as superior media for acetylene and ethylene adsorption: DFT calculations. COMPUT THEOR CHEM 2017. [DOI: 10.1016/j.comptc.2017.03.030] [Citation(s) in RCA: 55] [Impact Index Per Article: 7.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
|
28
|
Monshi M, Aghaei SM, Calizo I. Edge functionalized germanene nanoribbons: impact on electronic and magnetic properties. RSC Adv 2017. [DOI: 10.1039/c6ra25083a] [Citation(s) in RCA: 41] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
The spin-polarized calculations of fluorinated a11doped with a B atom indicate that it is semiconducting in both channels with band gaps of 0.4254 and 0.3932 eV for spin-up (α) and spin-down (β) channels.
Collapse
Affiliation(s)
- M. M. Monshi
- Quantum Electronic Structures Technology Lab
- Department of Electrical and Computer Engineering
- Florida International University
- Miami
- USA
| | - S. M. Aghaei
- Quantum Electronic Structures Technology Lab
- Department of Electrical and Computer Engineering
- Florida International University
- Miami
- USA
| | - I. Calizo
- Quantum Electronic Structures Technology Lab
- Department of Electrical and Computer Engineering
- Florida International University
- Miami
- USA
| |
Collapse
|
29
|
Abstract
A total of three adsorption sites on pristine graphene surface.
Collapse
Affiliation(s)
- Hongwei Gao
- Key Laboratory of Plant Resources and Chemistry in Arid Regions
- Xinjiang Technical Institute of Physics and Chemistry
- Chinese Academy of Sciences
- Urumqi 830011
- China
| | - Zhijie Liu
- Key Laboratory of Plant Resources and Chemistry in Arid Regions
- Xinjiang Technical Institute of Physics and Chemistry
- Chinese Academy of Sciences
- Urumqi 830011
- China
| |
Collapse
|