Narrow-gap, semiconducting, superhard amorphous carbon with high toughness, derived from C60 fullerene

被引：33

作者：

Zhang, Shuangshuang ^{[1
]}

Wu, Yingju ^{[1
]}

Luo, Kun ^{[1
,2
]}

Liu, Bing ^{[1
]}

Shu, Yu ^{[1
]}

Zhang, Yang ^{[1
,2
]}

Sun, Lei ^{[1
]}

Gao, Yufei ^{[1
,2
]}

Ma, Mengdong ^{[1
]}

Li, Zihe ^{[1
]}

Li, Baozhong ^{[1
]}

Ying, Pan ^{[1
,2
]}

Zhao, Zhisheng ^{[1
]}

Hu, Wentao ^{[1
]}

Benavides, Vicente ^{[3
,4
]}

Chernogorova, Olga P. ^{[5
]}

Soldatov, Alexander, V ^{[1
,6
,7
]}

He, Julong ^{[1
]}

Yu, Dongli ^{[1
]}

Xu, Bo ^{[1
]}

Tian, Yongjun ^{[1
]}

机构：

[1] Yanshan Univ, Ctr High Pressure Sci CHiPS, State Key Lab Metastable Mat Sci & Technol, Qinhuangdao 066004, Hebei, Peoples R China

[2] Yanshan Univ, Sch Sci, Key Lab Microstruct Mat Phys Hebei Prov, Qinhuangdao 066004, Hebei, Peoples R China

[3] Lulea Univ Technol, Dept Engn Sci & Math, SE-97187 Lulea, Sweden

[4] Saarland Univ, Dept Mat Sci, Campus D3-3, D-66123 Saarbrucken, Germany

[5] Baikov Inst Met & Mat Sci, Moscow 119334, Russia

[6] Ctr High Pressure Sci & Technol Adv Res, Shanghai 201203, Peoples R China

[7] Harvard Univ, Dept Phys, Cambridge, MA 02136 USA

来源：

CELL REPORTS PHYSICAL SCIENCE | 2021年 / 2卷 / 09期

基金：

国家重点研发计划; 中国国家自然科学基金;

关键词：

MECHANICAL-PROPERTIES; HIGH-PRESSURE; STRUCTURAL-ANALYSIS; DIAMOND; PHASES; RAMAN; C-60; GRAPHITE; HARDNESS; FILMS;

D O I：

10.1016/j.xcrp.2021.100575

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

New carbon forms that exhibit extraordinary physicochemical properties can be generated from nanostructured precursors under extreme pressure. Nevertheless, synthesis of such fascinating materials is often not well understood. That is the case of the C-60 precursor, with irreproducible results that impede further progress in the materials design. Here, the semiconducting amorphous carbon, having band gaps of 0.1-0.3 eV and the advantages of isotropic super hardness and superior toughness over single-crystal diamond and inorganic glasses, is produced from fullerene at high pressure and moderate temperatures. A systematic investigation of the structure and bonding evolution is carried out with complementary characterization methods, which helps to build a model of the transformation that can be used in further high-pressure/high-temperature (high p,T) synthesis of novel nano-carbon systems for advanced applications. The amorphous carbon materials produced have the potential of accomplishing the demanding optoelectronic applications that diamond and graphene cannot achieve.

引用

页数：18

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