Pressure induced transformation and subsequent amorphization of monoclinic Nb2O5 and its effect on optical properties

doi:10.1088/1361-648X/aaf9bd

This content will become publicly available on December 19, 2019

Title: Pressure induced transformation and subsequent amorphization of monoclinic Nb ₂O ₅ and its effect on optical properties

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Abstract

Pressure-induced phase transitions of monoclinic H-Nb ₂O ₅ have been studied here by in situ synchrotron x-ray diffraction, pair distribution function (PDF) analysis, and Raman and optical transmission spectroscopy. The initial monoclinic phase is found to transform into an orthorhombic phase at ~9 GPa and then change to an amorphous form above 21.4 GPa. The PDF data reveal that the amorphization is associated with disruptions of the long-range order of the NbO ₆ octahedra and the NbO ₇ pentagonal bipyramids, whereas the local edge-shares of octahedra and the local linkages of pentagonal bipyramids are largely preserved in their nearest neighbors. Upon compression, the transmittance of the sample in a region from visible to near infrared (450–1000 nm) starts to increase above 8.0 GPa and displays a dramatic enhancement above 22.2 GPa, indicating that the amorphous form has a high transmittance. The pressure-induced amorphous form is found to be recoverable under pressure release, and maintain high optical transmittance property at ambient conditions. The recoverable pressure induced amorphous material promises for applications in multifunctional materials.

Authors:

Guan, Zhou ^[1];

^[2]; Zhang, Huafang ^[1]; Shen, Pengfei ^[1]; Zheng, Lirong ^[3]; Chu, Shengqi ^[3];

^[4]; Hong, Xinguo ^[5]; Liu, Ran ^[1]; Wang, Peng ^[1];

^[1];

^[6]

Jilin Univ., Changchun (China). State Key Lab. of Superhard Materials
Jilin Univ., Changchun (China). State Key Lab. of Superhard Materials; Carnegie Inst. of Washington, Argonne, IL (United States). High Pressure Collaborative Access Team (HPCAT). Geophysical Lab.
Chinese Academy of Sciences (CAS), Beijing (China). Beijing Synchrotron Radiation Facility. Inst. of High Energy Physics
Carnegie Inst. of Washington, Argonne, IL (United States). High Pressure Collaborative Access Team (HPCAT). Geophysical Lab.
Center for High Pressure Science and Technology Advanced Research, Beijing (China)
Carnegie Inst. of Washington, Argonne, IL (United States). High Pressure Collaborative Access Team (HPCAT). Geophysical Lab.; Argonne National Lab. (ANL), Argonne, IL (United States). X-ray Science Division

Publication Date:: 2018-12-19

Research Org.:: Argonne National Lab. (ANL), Argonne, IL (United States); Carnegie Inst. of Washington, Argonne, IL (United States); Jilin Univ., Changchun (China); Chinese Academy of Sciences (CAS), Beijing (China)

Sponsoring Org.:: USDOE Office of Science (SC), Basic Energy Sciences (BES) (SC-22); USDOE National Nuclear Security Administration (NNSA); National Natural Science Foundation of China (NNSFC); National Basic Research Program of China; Program for Changjiang Scholars and Innovative Research Team in University (China); China Scholarship Council; Cheung Kong Scholars Programme of China

OSTI Identifier:: 1495700

Grant/Contract Number:: AC02-06CH11357; FG02-99ER45775; NA0001974; 11374120; 11604116; 51320105007; 2011CB808200; IRT1132

Resource Type:: Accepted Manuscript

Journal Name:: Journal of Physics. Condensed Matter

Additional Journal Information:: Journal Volume: 31; Journal Issue: 10; Journal ID: ISSN 0953-8984

Publisher:: IOP Publishing

Country of Publication:: United States

Language:: English

Subject:: 36 MATERIALS SCIENCE; 75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY

Citation Formats


                    Guan, Zhou, Li, Quanjun, Zhang, Huafang, Shen, Pengfei, Zheng, Lirong, Chu, Shengqi, Park, Changyong, Hong, Xinguo, Liu, Ran, Wang, Peng, Liu, Bingbing, and Shen, Guoyin. Pressure induced transformation and subsequent amorphization of monoclinic Nb2O5 and its effect on optical properties.  United States: N. p., 2018. 
        Web.  doi:10.1088/1361-648X/aaf9bd.

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                    Guan, Zhou, Li, Quanjun, Zhang, Huafang, Shen, Pengfei, Zheng, Lirong, Chu, Shengqi, Park, Changyong, Hong, Xinguo, Liu, Ran, Wang, Peng, Liu, Bingbing, & Shen, Guoyin. Pressure induced transformation and subsequent amorphization of monoclinic Nb2O5 and its effect on optical properties.  United States.  doi:10.1088/1361-648X/aaf9bd.

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                    Guan, Zhou, Li, Quanjun, Zhang, Huafang, Shen, Pengfei, Zheng, Lirong, Chu, Shengqi, Park, Changyong, Hong, Xinguo, Liu, Ran, Wang, Peng, Liu, Bingbing, and Shen, Guoyin. Wed .  
        "Pressure induced transformation and subsequent amorphization of monoclinic Nb2O5 and its effect on optical properties".  United States.  doi:10.1088/1361-648X/aaf9bd.

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@article{osti_1495700,

  title        = {Pressure induced transformation and subsequent amorphization of monoclinic Nb2O5 and its effect on optical properties},

  author       = {Guan, Zhou and Li, Quanjun and Zhang, Huafang and Shen, Pengfei and Zheng, Lirong and Chu, Shengqi and Park, Changyong and Hong, Xinguo and Liu, Ran and Wang, Peng and Liu, Bingbing and Shen, Guoyin},

  abstractNote = {Pressure-induced phase transitions of monoclinic H-Nb2O5 have been studied here by in situ synchrotron x-ray diffraction, pair distribution function (PDF) analysis, and Raman and optical transmission spectroscopy. The initial monoclinic phase is found to transform into an orthorhombic phase at ~9 GPa and then change to an amorphous form above 21.4 GPa. The PDF data reveal that the amorphization is associated with disruptions of the long-range order of the NbO6 octahedra and the NbO7 pentagonal bipyramids, whereas the local edge-shares of octahedra and the local linkages of pentagonal bipyramids are largely preserved in their nearest neighbors. Upon compression, the transmittance of the sample in a region from visible to near infrared (450–1000 nm) starts to increase above 8.0 GPa and displays a dramatic enhancement above 22.2 GPa, indicating that the amorphous form has a high transmittance. The pressure-induced amorphous form is found to be recoverable under pressure release, and maintain high optical transmittance property at ambient conditions. The recoverable pressure induced amorphous material promises for applications in multifunctional materials.},

  doi          = {10.1088/1361-648X/aaf9bd},

  journal      = {Journal of Physics. Condensed Matter},

  number       = 10,

  volume       = 31,

  place        = {United States},

  year         = {2018},

  month        = {12}

}

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This content will become publicly available on December 19, 2019

Title: Pressure induced transformation and subsequent amorphization of monoclinic Nb 2O 5 and its effect on optical properties

Abstract

Citation Formats

Title: Pressure induced transformation and subsequent amorphization of monoclinic Nb ₂O ₅ and its effect on optical properties