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Open AccessArticle

Pressure-Induced Dimerization of C60 at Room Temperature as Revealed by an In Situ Spectroscopy Study Using an Infrared Laser

1
College of Physics, Changchun Normal University, Changchun 130032, China
2
College of Physical Science and Technology, Yangzhou University, Yangzhou 225002, China
3
Department of Physics, HYU High Pressure Research Center, Hanyang University, Seoul 04763, Korea
4
Center for High Pressure Science and Technology Advanced Research (HPSTAR), Shanghai 201203, China
5
Institute of High Energy Physics, Chinese Academy of Sciences (CAS), Beijing 100049, China
6
Spallation Neutron Source Science Center, Dongguan 523803, China
7
School of Physical Science and Technology, ShanghaiTech University, Shanghai 201210, China
8
Center for High Pressure Science (CHiPS), State Key Laboratory of Metastable Materials Science and Technology, Yanshan University, Qinhuangdao 066004, China
*
Author to whom correspondence should be addressed.
Crystals 2020, 10(3), 182; https://doi.org/10.3390/cryst10030182
Received: 19 January 2020 / Revised: 24 February 2020 / Accepted: 28 February 2020 / Published: 7 March 2020
(This article belongs to the Special Issue Pressure-Induced Phase Transformations)
Using in situ high-pressure Raman spectroscopy and X-ray diffraction, the polymerization and structure evaluation of C60 were studied up to 16 GPa at room temperature. The use of an 830 nm laser successfully eliminated the photo-polymerization of C60, which has interfered with the pressure effect in previous studies when a laser with a shorter wavelength was used as excitation. It was found that face-centered cubic (fcc) structured C60 transformed into simple cubic (sc) C60 due to the hint of free rotation for the C60 at 0.3 GPa. The pressure-induced dimerization of C60 was found to occur at about 3.2 GPa at room temperature. Our results suggest the benefit and importance of the choice of the infrared laser as the excitation laser. View Full-Text
Keywords: fullerenes; polymerization; pressure-induced; Raman; infrared laser fullerenes; polymerization; pressure-induced; Raman; infrared laser
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MDPI and ACS Style

Li, B.; Zhang, J.; Yan, Z.; Feng, M.; Yu, Z.; Wang, L. Pressure-Induced Dimerization of C60 at Room Temperature as Revealed by an In Situ Spectroscopy Study Using an Infrared Laser. Crystals 2020, 10, 182. https://doi.org/10.3390/cryst10030182

AMA Style

Li B, Zhang J, Yan Z, Feng M, Yu Z, Wang L. Pressure-Induced Dimerization of C60 at Room Temperature as Revealed by an In Situ Spectroscopy Study Using an Infrared Laser. Crystals. 2020; 10(3):182. https://doi.org/10.3390/cryst10030182

Chicago/Turabian Style

Li, Bing; Zhang, Jinbo; Yan, Zhipeng; Feng, Meina; Yu, Zhenhai; Wang, Lin. 2020. "Pressure-Induced Dimerization of C60 at Room Temperature as Revealed by an In Situ Spectroscopy Study Using an Infrared Laser" Crystals 10, no. 3: 182. https://doi.org/10.3390/cryst10030182

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