Journal ArticleDOI
Semiconducting Group 15 Monolayers: A Broad Range of Band Gaps and High Carrier Mobilities
Shengli Zhang,Meiqiu Xie,Fengyu Li,Zhong Yan,Yafei Li,Erjun Kan,Wei Liu,Zhongfang Chen,Haibo Zeng +8 more
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TLDR
A broad range of band gaps and high mobilities of a 2D semiconductor family, composed of monolayer of Group 15 elements (phosphorene, arsenene, antimonene, bismuthene).Abstract:
Optoelectronic applications require materials both responsive to objective photons and able to transfer carriers, so new two-dimensional (2D) semiconductors with appropriate band gaps and high mobilities are highly desired. A broad range of band gaps and high mobilities of a 2D semiconductor family, composed of monolayer of Group 15 elements (phosphorene, arsenene, antimonene, bismuthene) is presented. The calculated binding energies and phonon band dispersions of 2D Group 15 allotropes exhibit thermodynamic stability. The energy band gaps of 2D semiconducting Group 15 monolayers cover a wide range from 0.36 to 2.62 eV, which are crucial for broadband photoresponse. Significantly, phosphorene, arsenene, and bismuthene possess carrier mobilities as high as several thousand cm2 V−1 s−1. Combining such broad band gaps and superior carrier mobilities, 2D Group 15 monolayers are promising candidates for nanoelectronics and optoelectronics.read more
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Journal ArticleDOI
Two-dimensional antimonene single crystals grown by van der Waals epitaxy.
Jianping Ji,Xiufeng Song,Jizi Liu,Zhong Yan,Chengxue Huo,Shengli Zhang,Meng Su,Lei Liao,Wenhui Wang,Zhenhua Ni,Yufeng Hao,Haibo Zeng +11 more
TL;DR: The van der Waals epitaxy growth of few-layer antimonene monocrystalline polygons, their atomical microstructure and stability in ambient condition are reported, showing high electrical conductivity up to 104 S m−1 and good optical transparency in the visible light range, promising in transparent conductive electrode applications.
Journal ArticleDOI
Nanomaterials: a review of synthesis methods, properties, recent progress, and challenges
TL;DR: Nanomaterials have emerged as an amazing class of materials that consists of a broad spectrum of examples with at least one dimension in the range of 1 to 100 nm as discussed by the authors.
Journal ArticleDOI
2D Monoelemental Arsenene, Antimonene, and Bismuthene: Beyond Black Phosphorus
Martin Pumera,Zdeněk Sofer +1 more
TL;DR: The area of exponentially increasing research in arsenene, antimonene, and bismuthene, which belong to the fifth main group of elements, the so-called pnictogens, is provided.
Journal ArticleDOI
Mechanical Isolation of Highly Stable Antimonene under Ambient Conditions.
Pablo Ares,Fernando Aguilar-Galindo,David Rodríguez-San-Miguel,Diego A. Aldave,Sergio Díaz-Tendero,Manuel Alcamí,Manuel Alcamí,Fernando Martín,Fernando Martín,Julio Gómez-Herrero,Félix Zamora,Félix Zamora +11 more
TL;DR: Density functional theory confirms the experiments and predicts an electronic gap of ≈1 eV that highlights the use of antimonene for optoelectronics applications.
Journal ArticleDOI
Black Phosphorus Rediscovered: From Bulk Material to Monolayers
TL;DR: This Review begins with the origin of the BP story, following the path from a bulk material to modern few/single layers, and the state-of-the-art of BP applications highlighted.
References
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TL;DR: With steady improvement in fabrication techniques and using graphene’s springboard, van der Waals heterostructures should develop into a large field of their own.
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TL;DR: In this article, a few-layer black phosphorus crystals with thickness down to a few nanometres are used to construct field effect transistors for nanoelectronic devices. But the performance of these materials is limited.
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Graphene photonics and optoelectronics
TL;DR: Graphene has high mobility and optical transparency, in addition to flexibility, robustness and environmental stability as discussed by the authors, and its true potential lies in photonics and optoelectronics, where the combination of its unique optical and electronic properties can be fully exploited, even in the absence of a bandgap, and the linear dispersion of the Dirac electrons enables ultrawideband tunability.
Journal ArticleDOI
High-mobility transport anisotropy and linear dichroism in few-layer black phosphorus
TL;DR: A detailed theoretical investigation of the atomic and electronic structure of few-layer black phosphorus (BP) is presented to predict its electrical and optical properties, finding that the mobilities are hole-dominated, rather high and highly anisotropic.
Journal ArticleDOI
Two-dimensional material nanophotonics
TL;DR: In this article, the optical properties and applications of various two-dimensional materials including transition metal dichalcogenides are reviewed with an emphasis on nanophotonic applications, and two different approaches for enhancing their interactions with light: through their integration with external photonic structures, and through intrinsic polaritonic resonances.