中国物理B ›› 2021, Vol. 30 ›› Issue (6): 68102-068102.doi: 10.1088/1674-1056/abf12c

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Synthesis and characterizations of boron and nitrogen co-doped high pressure and high temperature large single-crystal diamonds with increased mobility

Xin-Yuan Miao(苗辛原)1,†, Hong-An Ma(马红安)2, Zhuang-Fei Zhang(张壮飞)3, Liang-Chao Chen(陈良超)3, Li-Juan Zhou(周丽娟)1, Min-Si Li(李敏斯)1, and Xiao-Peng Jia(贾晓鹏)2   

  1. 1 College of Physics, Guangxi University of Science and Technology, Liuzhou 545006, China;
    2 State Key Laboratory of Superhard Materials, College of Physics, Jilin University, Changchun 130012, China;
    3 Key Laboratory of Material Physics of Ministry of Education, and School of Physical Engineering, Zhengzhou University, Zhengzhou 450052, China
  • 收稿日期:2021-01-23 修回日期:2021-03-19 接受日期:2021-03-24 出版日期:2021-05-18 发布日期:2021-05-20
  • 通讯作者: Xin-Yuan Miao E-mail:miaoxy@gxust.edu.cn
  • 基金资助:
    Project supported by the National Natural Science Foundation of China (Grant Nos. 51772120, 11704340, 11604246, and 11865005), the Scientific and Technological Project in Henan Province, China (Grant No. 202102210198), the Natural Science Foundation of Guangxi (China) (Grant No. 2018GXNS-FAA281024), and Doctor Start-up Foundation of Guangxi University of Science and Technology (Grant No. 20Z38).

Synthesis and characterizations of boron and nitrogen co-doped high pressure and high temperature large single-crystal diamonds with increased mobility

Xin-Yuan Miao(苗辛原)1,†, Hong-An Ma(马红安)2, Zhuang-Fei Zhang(张壮飞)3, Liang-Chao Chen(陈良超)3, Li-Juan Zhou(周丽娟)1, Min-Si Li(李敏斯)1, and Xiao-Peng Jia(贾晓鹏)2   

  1. 1 College of Physics, Guangxi University of Science and Technology, Liuzhou 545006, China;
    2 State Key Laboratory of Superhard Materials, College of Physics, Jilin University, Changchun 130012, China;
    3 Key Laboratory of Material Physics of Ministry of Education, and School of Physical Engineering, Zhengzhou University, Zhengzhou 450052, China
  • Received:2021-01-23 Revised:2021-03-19 Accepted:2021-03-24 Online:2021-05-18 Published:2021-05-20
  • Contact: Xin-Yuan Miao E-mail:miaoxy@gxust.edu.cn
  • Supported by:
    Project supported by the National Natural Science Foundation of China (Grant Nos. 51772120, 11704340, 11604246, and 11865005), the Scientific and Technological Project in Henan Province, China (Grant No. 202102210198), the Natural Science Foundation of Guangxi (China) (Grant No. 2018GXNS-FAA281024), and Doctor Start-up Foundation of Guangxi University of Science and Technology (Grant No. 20Z38).

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摘要： We synthesized and investigated the boron-doped and boron/nitrogen co-doped large single-crystal diamonds grown under high pressure and high temperature (HPHT) conditions (5.9 GPa and 1290℃). The optical and electrical properties and surface characterization of the synthetic diamonds were observed and studied. Incorporation of nitrogen significantly changed the growth trace on surface of boron-containing diamonds. X-ray photoelectron spectroscopy (XPS) measurements showed good evident that nitrogen atoms successfully incorporate into the boron-rich diamond lattice and bond with carbon atoms. Raman spectra showed differences on the as-grown surfaces and interior between boron-doped and boron/nitrogen co-doped diamonds. Fourier transform infrared spectroscopy (FTIR) measurements indicated that the nitrogen incorporation significantly decreases the boron acceptor concentration in diamonds. Hall measurements at room temperature showed that the carriers concentration of the co-doped diamonds decreases, and the mobility increases obviously. The highest hole mobility of sample BNDD-1 reached 980 cm2·V-1·s-1, possible reasons were discussed in the paper.

关键词: high pressure and high temperature (HPHT), diamond, growth of crystal, boron and nitrogen co-doped diamond

Abstract: We synthesized and investigated the boron-doped and boron/nitrogen co-doped large single-crystal diamonds grown under high pressure and high temperature (HPHT) conditions (5.9 GPa and 1290℃). The optical and electrical properties and surface characterization of the synthetic diamonds were observed and studied. Incorporation of nitrogen significantly changed the growth trace on surface of boron-containing diamonds. X-ray photoelectron spectroscopy (XPS) measurements showed good evident that nitrogen atoms successfully incorporate into the boron-rich diamond lattice and bond with carbon atoms. Raman spectra showed differences on the as-grown surfaces and interior between boron-doped and boron/nitrogen co-doped diamonds. Fourier transform infrared spectroscopy (FTIR) measurements indicated that the nitrogen incorporation significantly decreases the boron acceptor concentration in diamonds. Hall measurements at room temperature showed that the carriers concentration of the co-doped diamonds decreases, and the mobility increases obviously. The highest hole mobility of sample BNDD-1 reached 980 cm2·V-1·s-1, possible reasons were discussed in the paper.

Key words: high pressure and high temperature (HPHT), diamond, growth of crystal, boron and nitrogen co-doped diamond

中图分类号:  (Growth from melts; zone melting and refining)

  • 81.10.Fq
61.72.S- (Impurities in crystals) 64.70.dg (Crystallization of specific substances) 07.57.Ty (Infrared spectrometers, auxiliary equipment, and techniques)