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Evolution of Mesoscale Clusters in Study of Defects in Lithium Niobate Crystals
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Guoqiang SHI1, Kunfeng CHEN2, Gongbin TANG2, Hui HU3, Dongfeng XUE1
Journal of the Chinese Ceramic Society | 2023, 51(6) : 1425 - 1438
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Journal of the Chinese Ceramic Society | 2023, 51(6): 1425-1438
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Evolution of Mesoscale Clusters in Study of Defects in Lithium Niobate Crystals
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Guoqiang SHI1, Kunfeng CHEN2, Gongbin TANG2, Hui HU3, Dongfeng XUE1
Affiliations
  • 1.Multiscale Crystal Materials Research Center, Shenzhen Institute of Advanced Technology, Chinese Academy of Sciences, Shenzheng 518055, Guangdong, China
  • 2.Institute of New Generation Semiconductor Materials, State Key Laboratory of Crystal Materials, Shandong University, Jinan 250100, China
  • 3.State Key Laboratory of Crystal Materials, Shandong University, Jinan 250100, China

    • SHI Guoqiang (1990-), male, Ph.D., Assistant Professor. E-mail:

About Author:

SHI Guoqiang (1990-), male, Ph.D., Assistant Professor. E-mail:

Published: 2023-06-20 doi: 10.14062/j.issn.0454-5648.20220988
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There are abundant defect structures in lithium niobate crystals, mainly including VLi, NbLi4+, VNb and VO point defects. The existence of defects greatly affects the properties of lithium niobate crystal(i.e., piezoelectric, electro-optic, ferroelectric, photorefractive, nonlinear optical properties and laser damage threshold) as well as the performance of SAW, electro-optic modulator, acousto-optic modulator, temperature/pressure/acceleration sensor and other devices. The main process of defect formation in lithium niobate crystal can be attributed to the evolution of mesoscale clusters centered on O2- ions. It is thusimportant to understand the evolution mechanism of mesoscale clusters in the defect formation process of lithium niobate crystal for defect control. This paper was to investigate the dynamic evolution process and formation mechanism of defects in lithium niobate crystal from the aspects of defect types, formation energy and mesoscale cluster model. The hybridization and rehybridization process caused by defects in lithium niobate crystal structure was analyzed, and the coupling of multiple degrees of freedom was considered, which contributes to the defect control, rapid growth and performance control of lithium niobate crystal. In addition, the correlation between the defects of lithium niobate crystal and its properties as well asfunctions was also analyzed.

lithium niobate  /  defects  /  clusters  /  mesoscale  /  dynamic evolution
史国强, 陈昆峰, 唐供宾, 胡卉, 薛冬峰. 铌酸锂晶体缺陷研究中的介尺度团簇演变. 硅酸盐学报, 2023 , 51 (6) : 1425 -1438 . DOI: 10.14062/j.issn.0454-5648.20220988
Guoqiang SHI, Kunfeng CHEN, Gongbin TANG, Hui HU, Dongfeng XUE. Evolution of Mesoscale Clusters in Study of Defects in Lithium Niobate Crystals[J]. Journal of the Chinese Ceramic Society, 2023 , 51 (6) : 1425 -1438 . DOI: 10.14062/j.issn.0454-5648.20220988
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Year 2023 volume 51 Issue 6
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Article Info
doi: 10.14062/j.issn.0454-5648.20220988
  • Receive Date：2022-11-17
  • Online Date：2026-10-20
  • Published：2023-06-20
Article Data
Affiliations
History
  • Received：2022-11-17
  • Revised：2022-12-16
Funding
Affiliations
    1.Multiscale Crystal Materials Research Center, Shenzhen Institute of Advanced Technology, Chinese Academy of Sciences, Shenzheng 518055, Guangdong, China
    2.Institute of New Generation Semiconductor Materials, State Key Laboratory of Crystal Materials, Shandong University, Jinan 250100, China
    3.State Key Laboratory of Crystal Materials, Shandong University, Jinan 250100, China

Corresponding:

XUE Dongfeng (1968-), male, Ph.D., Professor. E-mail:
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表12种不同金属材料的力学参数
科
Family		 属数
Number of
genus		 种数
Number of
species		 占总种数比例
Percentage of
total species (%)		 属
Genus		 种数
Number of
species		 占总种数比例
Percentage of total
species (%)
鹅膏菌科Amanitaceae 2 11 5.26 鹅膏菌属 Amanita 10 4.78
小菇科 Mycenaceae 2 12 5.74 丝盖伞属 Inocybe 5 2.39
多孔菌科 Polyporaceae 8 14 6.70 蜡蘑属 Laccaria 5 2.39
红菇科 Russulaceae 3 23 11.00 小皮伞属 Marasmius 6 2.87
小菇属 Mycena 11 5.26
光柄菇属 Pluteus 5 2.39
红菇属 Russula 17 8.13
栓菌属 Trametes 5 2.39
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