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JOURNAL OF SYNTHETIC CRYSTALS ›› 2024, Vol. 53 ›› Issue (2): 194-209.

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Synthesis of Doped Diamond by High-Pressure and High-Temperature: a Review

HAO Jinglin1,2, DENG Lifen2, WANG Kaiyue1, SONG Hui2, JIANG Nan2, KAZUHITO Nishimura2   

  1. 1. School of Materials Science and Engineering, Taiyuan University of Science and Technology, Taiyuan 030024, China;
    2. Zhejiang Key Laboratory of Marine Materials and Protective Technologies, Key Laboratory of Marine Materials and Related Technologies, Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences, Ningbo 315201, China
  • Received:2023-08-16 Online:2024-02-15 Published:2024-02-04

Abstract: Diamond possesses an ultra-high thermal conductivity and a wide band-gap. Its electrical resistance could be adjusted for the semiconductor application by increasing the electron and vacancy content introduced by doping different elements. Therefore, diamond is thought to be the final wide band-gap semiconductor materials. This paper firstly introduces the synthesis of diamond by high-pressure and high-temperature (HPHT) method, and then systematically reviews the current status and developments of diamond doping by HPHT. The effects of single-element doping, such as N, B, P, and S, as well as multi-elements co-doping in the diamond crystal growth and its electrical properties are analyzed. In additional, this paper summaries the study diamond doping using first-principle calculation. HPHT annealing could effectively change the combinations of doped elements and the associated vacancies and their distribution. This paper reviews the adjustment of nitrogen-related color centers in diamond by HPHT annealing, elucidating the formation mechanisms of various nitrogen-related color centers. Finally, This paper prospects the potential optical and electrical properties of doped diamonds, highlighting the importance of theoretical calculations and experimental methods for multi-element co-doping investigation to enhance the performance of doped diamonds.

Key words: diamond, HPHT, doping, nitrogen-vacancy center, annealing, first-principle calculation

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