CAS OpenIR  > 中科院上海应用物理研究所2011-2019年
Pressure-Induced Reversible Phase Transformation in Nanostructured Bi2Te3 with Reduced Transition Pressure
Xiao, GJ; Wang, K; Zhu, L; Tan, X; Qiao, YC; Yang, K; Ma, YM; Liu, BB; Zheng, WT; Zou, B
2015
Source PublicationJOURNAL OF PHYSICAL CHEMISTRY C
Volume119Issue:7Pages:3843—3848
Subtype期刊文献
AbstractHigh-pressure research on nanostructured materials has been of considerable interest owing to the quantum confinement effect and intrinsic defects in the nanocrystals. Here, we report a pressure-induced reversible structural phase transition in nanostructured Bi(2)Te3 hierarchical architectures (HAs) that were prepared via a facile solution-phase method. Therein, distinct phases I-IV by respectively adopting crystal structures of rhombohedral (I), monoclinic (II, III), and cubic (IV) were experimentally identified with increasing pressure up to 20.2 GPa in a diamond anvil cell (DAC). It is worthwhile to notice that nanostructured Bi2Te3 HAs ultimately evolved into a fascinating Bi-Te substitutional nonmetallic alloy at pressure even as low as 15.0 GPa, approximately 10 GPa lower than that of the corresponding bulk counterpart. The synergistic effect involving large volume collapse and the unique one-dimensional nanostructures with intrinsic antisite defects was proposed to be responsible for the reduction of transition pressure that is contrary to the general model for most nanomaterials. Our findings may pave a potential pathway for developing future multifunctional nanoalloys that are composed of nonmetallic elements.
KeywordTopological Insulators Structural Stability Single-crystal Nanocrystals Nanowires Stress Wurtzite Superconductivity Thermoelectricity Temperature
Indexed BySCI
Language英语
Document Type期刊论文
Identifierhttp://ir.sinap.ac.cn/handle/331007/24545
Collection中科院上海应用物理研究所2011-2019年
Recommended Citation
GB/T 7714
Xiao, GJ,Wang, K,Zhu, L,et al. Pressure-Induced Reversible Phase Transformation in Nanostructured Bi2Te3 with Reduced Transition Pressure[J]. JOURNAL OF PHYSICAL CHEMISTRY C,2015,119(7):3843—3848.
APA Xiao, GJ.,Wang, K.,Zhu, L.,Tan, X.,Qiao, YC.,...&Zou, B.(2015).Pressure-Induced Reversible Phase Transformation in Nanostructured Bi2Te3 with Reduced Transition Pressure.JOURNAL OF PHYSICAL CHEMISTRY C,119(7),3843—3848.
MLA Xiao, GJ,et al."Pressure-Induced Reversible Phase Transformation in Nanostructured Bi2Te3 with Reduced Transition Pressure".JOURNAL OF PHYSICAL CHEMISTRY C 119.7(2015):3843—3848.
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