A Wide-Range Photosensitive Weyl Semimetal Single Crystal-TaAs

© 2018 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.

Bibliographische Detailangaben
Veröffentlicht in:Advanced materials (Deerfield Beach, Fla.). - 1998. - 30(2018), 43 vom: 04. Okt., Seite e1801372
1. Verfasser: Chi, Shumeng (VerfasserIn)
Weitere Verfasser: Li, Zhilin, Xie, Ying, Zhao, Yongguang, Wang, Zeyan, Li, Lei, Yu, Haohai, Wang, Gang, Weng, Hongming, Zhang, Huaijin, Wang, Jiyang
Format: Online-Aufsatz
Sprache:English
Veröffentlicht: 2018
Zugriff auf das übergeordnete Werk:Advanced materials (Deerfield Beach, Fla.)
Schlagworte:Journal Article TaAs Weyl semimetals mid- and long-infrared photodetection
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520 |a Mid- and even long-infrared photodetection is highly desired for various modern optoelectronic devices, and photodetectors that operate at room temperature (RT) remain challenging and are being extensively sought. Recently, the Weyl semimetal has attracted much interest, and its Lorentz invariance can be broken to have tilted chiral Weyl cones around the Fermi level, which indicates that the photocurrent can be generated by the incident photons at arbitrarily long wavelengths. Furthermore, the atypical linear dispersion bands in Weyl cones result in high carrier mobility and quadratic energy dependence of the density of states, which can enhance the efficiency of the photocurrent and suppress thermal carriers, in addition to its favorable large absorption coefficient. In this study, a Weyl semimetal TaAs photodetecting prototype is reported, which operates at RT with an outstanding response that ranges from the visible to the long-infrared range. This study indicates that the Weyl semimetal TaAs should boost the development of modern optoelectronics and photonics 
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700 1 |a Li, Zhilin  |e verfasserin  |4 aut 
700 1 |a Xie, Ying  |e verfasserin  |4 aut 
700 1 |a Zhao, Yongguang  |e verfasserin  |4 aut 
700 1 |a Wang, Zeyan  |e verfasserin  |4 aut 
700 1 |a Li, Lei  |e verfasserin  |4 aut 
700 1 |a Yu, Haohai  |e verfasserin  |4 aut 
700 1 |a Wang, Gang  |e verfasserin  |4 aut 
700 1 |a Weng, Hongming  |e verfasserin  |4 aut 
700 1 |a Zhang, Huaijin  |e verfasserin  |4 aut 
700 1 |a Wang, Jiyang  |e verfasserin  |4 aut 
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