Enhanced Structural Stability of Sb2Se3 via Pressure-Induced Alloying and Amorphization

Cheng，Hu1,2,3; Zhang，Junran1,6; Yu，Pengfei4; Gu，Chao2; Ren，Xiangting2,3; Lin，Chuanlong5; Li，Xiaodong1; Zhao，Yusheng2; Wang，Shanmin2; Li，Yanchun1

2020-02-06

10.1021/acs.jpcc.9b11520

Journal of Physical Chemistry C   影响因子和分区

1932-7447

1932-7455

In this work, we revealed that SbSe has one second-order isostructural phase transitions before it eventually transformed into a site-disordered alloy during compression. Then, a rare amorphization of alloy was discovered with decreasing pressure in SbSe by performing in situ high-pressure X-ray diffraction (XRD) and Raman experiments, which may be owed to the significant difference in atomic electronegativity of SbSe. Compared to the original structure, the amorphous phase of SbSe is more stable at high pressure. Surprisingly, the structural stability of amorphous SbSe at varying temperatures was also significantly improved via recompression. Our findings will provide insight into the formation mechanism of the bcc alloys and amorphization in AB (A = Sb, Bi; B = S, Se, Te) compounds and, especially, offer a new way to prepare amorphous materials.

SCI ; EI

英语

通讯

National Natural Science Foundation of China[] ; National Natural Science Foundation of China[11474280]

Chemistry ; Science & Technology - Other Topics ; Materials Science

Chemistry, Physical ; Nanoscience & Nanotechnology ; Materials Science, Multidisciplinary

WOS:000512222000072

American Chemical Society

20200908217354

Chemical bonds ; Electronegativity ; Selenium compounds ; Stability ; Tellurium compounds

Physical Chemistry:801.4 ; Electrochemistry:801.4.1 ; Chemical Operations:802.3

2-s2.0-85079774406

Scopus

1.Multidiscipline Research Center,Institute of High Energy Physics,Chinese Academy of Science,Beijing,100049,China
2.Department of Physics,Southern University of Science and Technology,Shenzhen,518055,China
3.Department of Physics,Wuhan University,Wuhan,430072,China
4.State Key Laboratory of Metastable Materials Science and Technology,Yanshan University,Qinhuangdao,066004,China
5.Center for High Pressure Science and Technology Advanced Research (HPSTAR),Beijing,100094,China
6.University of Chinese Academy of Sciences,Beijing,100049,China

Cheng，Hu,Zhang，Junran,Yu，Pengfei,et al. Enhanced Structural Stability of Sb2Se3 via Pressure-Induced Alloying and Amorphization[J]. Journal of Physical Chemistry C,2020,124(5):3421-3428.

Cheng，Hu.,Zhang，Junran.,Yu，Pengfei.,Gu，Chao.,Ren，Xiangting.,...&Li，Yanchun.(2020).Enhanced Structural Stability of Sb2Se3 via Pressure-Induced Alloying and Amorphization.Journal of Physical Chemistry C,124(5),3421-3428.

Cheng，Hu,et al."Enhanced Structural Stability of Sb2Se3 via Pressure-Induced Alloying and Amorphization".Journal of Physical Chemistry C 124.5(2020):3421-3428.