1
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Dold K, Cordova DLM, Singsen S, Nguyen JQ, Milligan GM, Marracci M, Yao ZF, Ziller JW, Fishman DA, Lee EMY, Arguilla MQ. GaSI: A Wide-Gap Non-centrosymmetric Helical Crystal. J Am Chem Soc 2024; 146:22881-22886. [PMID: 39038204 PMCID: PMC11345776 DOI: 10.1021/jacs.4c06487] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2024] [Revised: 07/15/2024] [Accepted: 07/17/2024] [Indexed: 07/24/2024]
Abstract
The complex non-centrosymmetric and chiral nature of helical structures endow materials that possess such motifs with unusual properties. However, despite their ubiquity in biological and organic systems, there is a severe lack of inorganic crystals that display helicity in extended lattices, where these unusual properties are expected to be most pronounced. Here, we report a new inorganic helical structure, gallium sulfur iodide (GaSI), within the exfoliable class of III-VI-VII (1:1:1) one-dimensional (1D) van der Waals (vdW) crystals. Through detailed structural analyses, including single-crystal X-ray diffraction, electron microscopy, and density functional theory (DFT), we elucidate the apparent noncrystallographic screw axis and the first example of an atomic scale helical structure bearing a "squircular" cross-section in GaSI. Crystallizing in the non-centrosymmetric P4̅ space group, we found that GaSI crystals exhibit pronounced second-harmonic generation. From diffuse reflectance spectroscopy, GaSI displays a sizeable bandgap of 3.69 eV, owing tostrong covalent interactions arising from the smaller sulfur atoms within the helix core. These results position GaSI as a promising exfoliable nonlinear optical material across a broad optical window.
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Affiliation(s)
- Kaitlyn
G. Dold
- Department
of Chemistry, University of California, Irvine, California 92697, United States
| | | | - Sirisak Singsen
- Department
of Materials Science and Engineering, University
of California, Irvine, California 92697, United States
| | - Joseph Q. Nguyen
- Department
of Chemistry, University of California, Irvine, California 92697, United States
| | - Griffin M. Milligan
- Department
of Chemistry, University of California, Irvine, California 92697, United States
| | - Marcus Marracci
- Department
of Chemistry, University of California, Irvine, California 92697, United States
| | - Ze-Fan Yao
- Department
of Chemical and Biomolecular Engineering, University of California, Irvine, California 92697, United States
| | - Joseph W. Ziller
- Department
of Chemistry, University of California, Irvine, California 92697, United States
| | - Dmitry A. Fishman
- Department
of Chemistry, University of California, Irvine, California 92697, United States
| | - Elizabeth M. Y. Lee
- Department
of Materials Science and Engineering, University
of California, Irvine, California 92697, United States
- Department
of Chemical and Biomolecular Engineering, University of California, Irvine, California 92697, United States
| | - Maxx Q. Arguilla
- Department
of Chemistry, University of California, Irvine, California 92697, United States
- Department
of Chemical and Biomolecular Engineering, University of California, Irvine, California 92697, United States
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2
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Cordova DLM, Chua K, Kerr TA, Aoki T, Knez D, Skorupskii G, Lopez D, Ziller J, Fishman DA, Arguilla MQ. Atomically precise inorganic helices with a programmable irrational twist. NATURE MATERIALS 2024:10.1038/s41563-024-01963-4. [PMID: 39060470 DOI: 10.1038/s41563-024-01963-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/20/2022] [Accepted: 07/02/2024] [Indexed: 07/28/2024]
Abstract
Helicity in solids often arises from the precise ordering of cooperative intra- and intermolecular interactions unique to natural, organic or molecular systems. This exclusivity limited the realization of helicity and its ensuing properties in dense inorganic solids. Here we report that Ga atoms in GaSeI, a representative III-VI-VII one-dimensional (1D) van der Waals crystal, manifest the rare Boerdijk-Coxeter helix motif. This motif is a non-repeating geometric pattern characterized by 1D face-sharing tetrahedra whose adjacent vertices are rotated by an irrational angle. Using InSeI and GaSeI, we show that the modularity of 1D van der Waals lattices accommodates the systematic twisting of a periodic tetrahelix with a 41 screw axis in InSeI to an infinitely extending Boerdijk-Coxeter helix in GaSeI. GaSeI crystals are non-centrosymmetric, optically active and exfoliable to a single chain. These results present a materials platform towards understanding the origin and physical manifestation of aperiodic helicity in low-dimensional solids.
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Affiliation(s)
| | - Kenneth Chua
- Department of Chemistry, University of California Irvine, Irvine, CA, USA
| | - Tyler A Kerr
- Department of Chemistry, University of California Irvine, Irvine, CA, USA
| | - Toshihiro Aoki
- Irvine Materials Research Institute, University of California Irvine, Irvine, CA, USA
| | - David Knez
- Department of Chemistry, University of California Irvine, Irvine, CA, USA
| | | | - Diana Lopez
- Department of Chemistry, University of California Irvine, Irvine, CA, USA
| | - Joseph Ziller
- Department of Chemistry, University of California Irvine, Irvine, CA, USA
| | - Dmitry A Fishman
- Department of Chemistry, University of California Irvine, Irvine, CA, USA
| | - Maxx Q Arguilla
- Department of Chemistry, University of California Irvine, Irvine, CA, USA.
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3
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Cordova DLM, Zhou Y, Milligan GM, Cheng L, Kerr T, Ziller J, Wu R, Arguilla MQ. Sensitive Thermochromic Behavior of InSeI, a Highly Anisotropic and Tubular 1D van der Waals Crystal. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2024; 36:e2312597. [PMID: 38301612 DOI: 10.1002/adma.202312597] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/23/2023] [Revised: 01/08/2024] [Indexed: 02/03/2024]
Abstract
Thermochromism, the change in color of a material with temperature, is the fundamental basis of optical thermometry. A longstanding challenge in realizing sensitive optical thermometers for widespread use is identifying materials with pronounced thermometric optical performance in the visible range. Herein, it is demonstrated that single crystals of indium selenium iodide (InSeI), a 1D van der Waals (vdW) solid consisting of weakly bound helical chains, exhibit considerable visible range thermochromism. A strong temperature-dependent optical band edge absorption shift ranging from 450 to 530 nm (2.8 to 2.3 eV) over a 380 K temperature range with an experimental (dEg/dT)max value extracted to be 1.26 × 10-3 eV K-1 is shown. This value lies appreciably above most dense conventional semiconductors in the visible range and is comparable to soft lattice solids. The authors further seek to understand the origin of this unusually sensitive thermochromic behavior and find that it arises from strong electron-phonon interactions and anharmonic phonons that significantly broaden band edges and lower the Eg with increasing temperature. The identification of structural signatures resulting in sensitive thermochromism in 1D vdW crystals opens avenues in discovering low-dimensional solids with strong temperature-dependent optical responses across broad spectral windows, dimensionalities, and size regimes.
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Affiliation(s)
| | - Yinong Zhou
- Department of Physics and Astronomy, University of California, Irvine, CA, 92697, USA
| | - Griffin M Milligan
- Department of Chemistry, University of California, Irvine, CA, 92697, USA
| | - Leo Cheng
- Department of Chemistry, University of California, Irvine, CA, 92697, USA
| | - Tyler Kerr
- Department of Chemistry, University of California, Irvine, CA, 92697, USA
| | - Joseph Ziller
- Department of Chemistry, University of California, Irvine, CA, 92697, USA
| | - Ruqian Wu
- Department of Physics and Astronomy, University of California, Irvine, CA, 92697, USA
| | - Maxx Q Arguilla
- Department of Chemistry, University of California, Irvine, CA, 92697, USA
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4
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Zhu Z, Zhao S, Yao X, Hu C. Lone-pair-induced formation of intrinsic one-dimensional SbSX (X = Cl, Br, I) helix chain materials. Phys Chem Chem Phys 2023; 25:31747-31753. [PMID: 37964736 DOI: 10.1039/d3cp00061c] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2023]
Abstract
Intrinsic one-dimensional (1D) helix chain materials are extremely rare in inorganic chemistry due to their novel structural features and complex syntheses. Herein, we report a class of inborn 1D helix chains, namely 1D SbSX (X = Cl, Br, I), that can exist stably. Through ab initio calculations, we demonstrate that the formation of this helical feature is facilitated by the lone pairs in antimony atoms. Owing to the different chemical bonds induced by the lone pairs, a phase transition between different helix chain phases can occur by applying extra elongation strain. More importantly, 1D SbSX helix chains possess superior flexibility. Under large elongation strains, the elastic energy is stored via bond angle redistributions, while the average bond lengths can remain invariant. Our work not only enriches the family of intrinsic 1D helical materials, but also provides a novel avenue for the diversification of low-dimensional phase change and flexible materials.
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Affiliation(s)
- Ziye Zhu
- School of Engineering, Westlake University, Hangzhou 310030, China.
- School of Materials Science and Engineering, Zhejiang University, Hangzhou 310027, China
| | - Shu Zhao
- School of Engineering, Westlake University, Hangzhou 310030, China.
- School of Materials Science and Engineering, Zhejiang University, Hangzhou 310027, China
| | - Xiaoping Yao
- School of Engineering, Westlake University, Hangzhou 310030, China.
- School of Materials Science and Engineering, Zhejiang University, Hangzhou 310027, China
| | - Cong Hu
- School of Engineering, Westlake University, Hangzhou 310030, China.
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5
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Yu R, Xiao F, Lei W, Wang W, Ma Y, Gong X, Ming X. Emerging quasi-one-dimensional material NbS 4 with high carrier mobility and good visible-light adsorption performance for nanoscale applications. Phys Chem Chem Phys 2023; 25:30066-30078. [PMID: 37906277 DOI: 10.1039/d3cp03676f] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/02/2023]
Abstract
Due to their unique structure, abundant properties and potential applications, low-dimensional materials with covalently bonded building blocks through van der Waals (vdW) interactions have sparked widespread interest. Recently, the bulk phase NbS4 consisting of one-dimensional (1D) chains has been synthesized successfully, adding a new member to the group V metallic polychalcogenide family. In the present study, based on density functional theory calculations, we obtained a better understanding of the stability, mechanical properties, electronic structures, transport properties and optical performances of the bulk phase NbS4. Furthermore, the possibility of exfoliating 1D single-chain nanowires from the bulk phase was uncovered. Both bulk phase and 1D nanowires show dynamic, thermal, and mechanical stabilities. The bulk phase possesses an indirect band gap of 1.39 eV with high anisotropic carrier mobilities of 471.814 cm2 s-1 v-1 for electrons (along the b axis direction) and 546.92 cm2 s-1 v-1 for holes (along the a axis direction). The single-chain nanowire exhibits remarkable flexibility and can resist 24% tensile strain along the chain direction. The decreased dimension from the bulk phase to the individual 1D chain not only makes the band gap increase to 1.81 eV but also results in an indirect-to-direct band gap transition, indicating a strong quantum confinement effect. The 1D single-chain nanowire also shows high carrier mobilities of 111.91 cm2 s-1 v-1 for electrons and 316.63 cm2 s-1 v-1 for holes along the chain direction. In addition, both bulk phase and 1D nanowire display excellent visible light absorption performance along the chain direction and the absorption coefficients reach the order of 106 and 105 cm-1. These promising properties render quasi 1D NbS4 as candidate materials for nanoscale applications in high-performance optoelectronic and nanoelectronic devices. The predicted unconventional properties of NbS4 not only provide a meaningful complement to the fascinating quasi 1D material family, but also will attract extensive interest from a wide audience to explore unanticipated properties and design new nanoscale devices based on NbS4.
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Affiliation(s)
- Ru Yu
- College of Science, Guilin University of Technology, Guilin 541004, P. R. China.
| | - Feng Xiao
- College of Science, Guilin University of Technology, Guilin 541004, P. R. China.
- School of Physics, Sun Yat-Sen University, Guangzhou, 510275, P. R. China
| | - Wen Lei
- Key Laboratory of Artificial Micro- and Nano-Structures of Ministry of Education and School of Physics and Technology, Wuhan University, Wuhan 430072, P. R. China
| | - Wei Wang
- School of Materials Science and Engineering, Beihang University, Beijing 100191, P. R. China
| | - Yiping Ma
- College of Science, Guilin University of Technology, Guilin 541004, P. R. China.
| | - Xujia Gong
- College of Science, Guilin University of Technology, Guilin 541004, P. R. China.
| | - Xing Ming
- College of Science, Guilin University of Technology, Guilin 541004, P. R. China.
- MOE Key Laboratory of New Processing Technology for Nonferrous Metal and Materials, Key Laboratory of Low-dimensional Structural Physics and Application, Education Department of Guangxi Zhuang Autonomous Region, Guilin University of Technology, Guilin 541004, P. R. China
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6
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Gao W, Yu M, Wang B, Yin H. Strong spin-orbital coupling induced tunable electronic structures and enhanced visible-light absorption in one-dimensional RhTe 6I 3 systems. Phys Chem Chem Phys 2023; 25:28402-28411. [PMID: 37843509 DOI: 10.1039/d3cp02874g] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2023]
Abstract
Considering the demand for device miniaturization, low-dimensional materials have been widely employed in various fields due to their unique and fascinating physical and chemical properties. Here, based on first-principles calculations, we predict a novel one-dimensional (1D) RhTe6I3 chain system. Our calculations indicate that a 1D RhTe6I3 single chain can be prepared from its bulk counterpart by an exfoliation method and exists stably at room temperature. The 1D RhTe6I3 single chain is a direct semiconductor with a moderate bandgap of 1.75 eV under a strong spin-orbital coupling (SOC) effect dominated by Te. This bandgap can be modulated by the chain number and the application of external strain. Notably, the 1D RhTe6I3 single chain has a high electron mobility (1093 cm2 V-1 s-1), which is one to two orders of magnitude higher than those of most previously reported 1D materials. The strong SOC effect can also enhance the visible-light absorption capacity of the 1D RhTe6I3 single chain. The moderate direct bandgap, high electron mobility, excellent visible-light absorption, and strong spin-orbital coupling make 1D RhTe6I3 systems ideal candidates in electronic and optoelectronic devices.
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Affiliation(s)
- Wenjiang Gao
- Institute for Computational Materials Science, Joint Center for Theoretical Physics, and International Joint Research Laboratory of New Energy Materials and Devices of Henan Province, School of Physics and Electronics, Henan University, Kaifeng 475004, China.
| | - Meiyang Yu
- Institute for Computational Materials Science, Joint Center for Theoretical Physics, and International Joint Research Laboratory of New Energy Materials and Devices of Henan Province, School of Physics and Electronics, Henan University, Kaifeng 475004, China.
| | - Bing Wang
- Institute for Computational Materials Science, Joint Center for Theoretical Physics, and International Joint Research Laboratory of New Energy Materials and Devices of Henan Province, School of Physics and Electronics, Henan University, Kaifeng 475004, China.
| | - Huabing Yin
- Institute for Computational Materials Science, Joint Center for Theoretical Physics, and International Joint Research Laboratory of New Energy Materials and Devices of Henan Province, School of Physics and Electronics, Henan University, Kaifeng 475004, China.
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7
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Qiao Y, Yin H. Ferromagnetic and half-metallic phase transition by doping in a one-dimensional narrow-bandgap W 6PCl 17 semiconductor. NANOSCALE 2023; 15:9835-9842. [PMID: 37212729 DOI: 10.1039/d3nr01717f] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
Abstract
Based on first-principles calculations, we predict a one-dimensional (1D) semiconductor with cluster-type structure, namely phosphorus-centered tungsten chloride W6PCl17. The corresponding single-chain system can be prepared from its bulk counterpart by an exfoliation method and it exhibits good thermal and dynamical stability. 1D single-chain W6PCl17 is a narrow direct semiconductor with a bandgap of 0.58 eV. The unique electronic structure endows single-chain W6PCl17 with the p-type transport characteristic, manifested as a large hole mobility of 801.53 cm2 V-1 s-1. Remarkably, our calculations show that electron doping can easily induce itinerant ferromagnetism in single-chain W6PCl17 due to the extremely flat band feature near the Fermi level. Such ferromagnetic phase transition expectedly occurs at an experimentally achievable doping concentration. Importantly, a saturated magnetic moment of 1μB per electron is obtained over a large range of doping concentrations (from 0.02 to 5 electrons per formula unit), accompanied by the stable existence of half-metallic characteristics. A detailed analysis of the doping electronic structures indicates that the doping magnetism is mainly contributed by the d orbitals of partial W atoms. Our findings demonstrate that single-chain W6PCl17 is a typical 1D electronic and spintronic material expected to be synthesized experimentally in the future.
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Affiliation(s)
- Yusen Qiao
- Joint Center for Theoretical Physics, Institute for Computational Materials Science, School of Physics and Electronics, Henan University, Kaifeng 475004, China.
- International Joint Research Laboratory of New Energy Materials and Devices of Henan Province, School of Physics and Electronics, Henan University, Kaifeng 475004, China
| | - Huabing Yin
- Joint Center for Theoretical Physics, Institute for Computational Materials Science, School of Physics and Electronics, Henan University, Kaifeng 475004, China.
- International Joint Research Laboratory of New Energy Materials and Devices of Henan Province, School of Physics and Electronics, Henan University, Kaifeng 475004, China
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8
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Zhang F, Chen W, Zhang Y, Yin H. 1D group V-VI-VII ternary nanowires: moderate band gaps, easy to exfoliate from bulk, and unexpected ferroelectricity. Phys Chem Chem Phys 2023; 25:6112-6120. [PMID: 36752084 DOI: 10.1039/d2cp05581c] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
Abstract
One-dimensional nanowires have emerged as compelling ideal materials due to their characteristic structure, properties, and applications in nanodevices. Herein, based on experimental vdW-chain bulk crystals, a series of one-dimensional (1D) XVYVIZVII (X = As, Sb, Bi; Y = S, Se, Te; Z = Cl, Br, I) ternary nanowires are theoretically investigated. Such exfoliated 1D nanowires possess excellent stability and moderate band gaps (1.76-3.16 eV). The calculated electron mobilities were found to reach a magnitude of 102 cm2 V-1 s-1 and even up to 322.95 cm2 V-1 s-1 for 1D BiSeI nanowires, which are much larger than those of the previously reported 1D materials. Furthermore, the appropriate band edge alignments and considerable optical absorption endow 1D XVYVIZVII nanowires with prospective photocatalytic properties for water splitting. Notably, AsSI and AsSeI nanowires possess a unique non-centrosymmetric structure and exhibit promising 1D ferroelectricity. Large spontaneous polarization values, Ps, of 11.31 × 10-10 and 6.92 × 10-10 C m-1 are obtained for 1D AsSI and AsSeI nanowires, respectively, and such 1D ferroelectricity can be regulated by intra-chain strains. Our calculations not only broaden the family of 1D materials but also reveal their great potential applications in electronic, optoelectronic, and ferroelectric devices.
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Affiliation(s)
- Fumin Zhang
- Joint Center for Theoretical Physics, and Institute for Computational Materials Science, School of Physics and Electronics, Henan University, Kaifeng 475004, China. .,International Joint Research Laboratory of New Energy Materials and Devices of Henan Province, School of Physics and Electronics, Henan University, Kaifeng 475004, China
| | - Weizhen Chen
- Joint Center for Theoretical Physics, and Institute for Computational Materials Science, School of Physics and Electronics, Henan University, Kaifeng 475004, China. .,International Joint Research Laboratory of New Energy Materials and Devices of Henan Province, School of Physics and Electronics, Henan University, Kaifeng 475004, China
| | - Yungeng Zhang
- Joint Center for Theoretical Physics, and Institute for Computational Materials Science, School of Physics and Electronics, Henan University, Kaifeng 475004, China. .,International Joint Research Laboratory of New Energy Materials and Devices of Henan Province, School of Physics and Electronics, Henan University, Kaifeng 475004, China
| | - Huabing Yin
- Joint Center for Theoretical Physics, and Institute for Computational Materials Science, School of Physics and Electronics, Henan University, Kaifeng 475004, China. .,International Joint Research Laboratory of New Energy Materials and Devices of Henan Province, School of Physics and Electronics, Henan University, Kaifeng 475004, China
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9
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Li FY, Zhang JQ, Zhang HX, Wang J, Jia R. Theoretical Study on Zigzag Boron Nitride Nanowires. Chemphyschem 2023; 24:e202200813. [PMID: 36759326 DOI: 10.1002/cphc.202200813] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2022] [Revised: 12/15/2022] [Accepted: 02/09/2023] [Indexed: 02/11/2023]
Abstract
In this work, two kinds of BN-nanowires (BNnws): a-BNnw and d-BNnw, respectively composed of azo (N-N) and diboron (B-B) bonds, are proposed with the aid of the first-principles simulations. Their structural stabilities are carefully verified from the energetics, lattice dynamics, and thermodynamic perspectives. Similar to the other common boron nitride polymorph, the a-BNnw and d-BNnw are semiconductors with relatively wide band gaps of 3.256 and 4.631 eV at the HSE06 level, respectively. The corresponding projected DOS patterns point out that their band edges are composed of different atomic species, which can help with the separation of their excitons. The band gaps can be manipulated monotonically by axial strains within the elastic ranges. The major charge carriers are electron holes. Significantly, a-BNnw possesses very high carrier mobilities around 0.44×104 cm2 V-1 s-1 .
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Affiliation(s)
- Feng-Yin Li
- Institute of Theoretical Chemistry, College of Chemistry, Jilin University, 130023, Changchun, P.R. China
| | - Jia-Qi Zhang
- Institute of Theoretical Chemistry, College of Chemistry, Jilin University, 130023, Changchun, P.R. China
| | - Hong-Xing Zhang
- Institute of Theoretical Chemistry, College of Chemistry, Jilin University, 130023, Changchun, P.R. China
| | - Jian Wang
- Institute of Theoretical Chemistry, College of Chemistry, Jilin University, 130023, Changchun, P.R. China
| | - Ran Jia
- Institute of Theoretical Chemistry, College of Chemistry, Jilin University, 130023, Changchun, P.R. China
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Shen H, Liu S, Qiao Y, Zhang F, Yin H, Ju L. High electron mobility and wide-bandgap properties in a novel 1D PdGeS 3 nanochain. Phys Chem Chem Phys 2022; 24:18868-18876. [PMID: 35912920 DOI: 10.1039/d2cp02732a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
As a versatile platform, one-dimensional (1D) electronic systems host plenty of excellent merits, such as high length-to-diameter ratios, flexible mechanical properties, and manageable electronic characteristics, which endow them with significant potential applications in catalysts, flexible wearable devices, and multifunctional integrated circuits. Herein, based on first-principles calculations, we propose a versatile 1D PdGeS3 nanochain system. Our calculations show that the 1D PdGeS3 nanochain can be synthesized simply from its bulk crystal by exfoliation methods and can stably exist at room temperature. The 1D PdGeS3 nanochain is an indirect semiconductor with a wide bandgap of 2.86 eV, and such a bandgap can be effectively modulated by strain. Remarkably, the electron mobility of the 1D PdGeS3 nanochain reaches as high as 1506 cm2 V-1 s-1, which is one to two orders of magnitude larger than those of most reported 1D materials and even some 2D materials. Such high electron mobility accompanied with low hole mobility endow the 1D PdGeS3 nanochain with the capacity of the separation of carriers. Our work shows that the 1D PdGeS3 nanochain is a promising candidate for applications in novel multifunctional nanoelectronic devices.
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Affiliation(s)
- Huimin Shen
- Institute for Computational Materials Science, Joint Center for Theoretical Physics (JCTP), School of Physics and Electronics, Henan University, Kaifeng 475004, China. .,International Joint Research Laboratory of New Energy Materials and Devices of Henan Province, School of Physics and Electronics, Henan University, Kaifeng 475004, China
| | - Siyuan Liu
- Institute for Computational Materials Science, Joint Center for Theoretical Physics (JCTP), School of Physics and Electronics, Henan University, Kaifeng 475004, China. .,International Joint Research Laboratory of New Energy Materials and Devices of Henan Province, School of Physics and Electronics, Henan University, Kaifeng 475004, China
| | - Yusen Qiao
- Institute for Computational Materials Science, Joint Center for Theoretical Physics (JCTP), School of Physics and Electronics, Henan University, Kaifeng 475004, China. .,International Joint Research Laboratory of New Energy Materials and Devices of Henan Province, School of Physics and Electronics, Henan University, Kaifeng 475004, China
| | - Fumin Zhang
- Institute for Computational Materials Science, Joint Center for Theoretical Physics (JCTP), School of Physics and Electronics, Henan University, Kaifeng 475004, China. .,International Joint Research Laboratory of New Energy Materials and Devices of Henan Province, School of Physics and Electronics, Henan University, Kaifeng 475004, China
| | - Huabing Yin
- Institute for Computational Materials Science, Joint Center for Theoretical Physics (JCTP), School of Physics and Electronics, Henan University, Kaifeng 475004, China. .,International Joint Research Laboratory of New Energy Materials and Devices of Henan Province, School of Physics and Electronics, Henan University, Kaifeng 475004, China
| | - Lin Ju
- School of Physics and Electrical Engineering, Anyang Normal University, Anyang 455000, China.
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