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Chinese Physics C> 2005, Vol. 29> Issue(S1) : 93-96 

EXAFS Study the Local Structure of Nanocrystalline Lu2O3:Eu

  •  Department of Physics, USTC, Hefei 230026, China2 National Synchrotron Radiation Laboratory, USTC, Hefei 230029, China3 Institute of High Energy Physics, CAS, Beijing 100049, China

  • A series of nanocrystalline Lu2O3:Eu(10%) with different sizes was studied by EXAFS. The result shows that the first coordination shells Lu-O and Eu-O have bigger coordination number and longer coordination distance with the size decreasing. The linear relation between nearest coordination distance and reciprocal value of particle diameter suggests that the system have two kinds of local structure state. One of them is noncrystal structure, which has big coordination number and long coordination distance comparing with the crystal situation. The component of noncrystal phase increases with the decreasing size and causes abnormal physical behavior such as novel luminescence property.
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LIU Miao, QI Ze-Ming, SHI Chao-Shu, XU Mei, ZHANG Wei-Ping, LIU Tao and XIE Ya-Ning. EXAFS Study the Local Structure of Nanocrystalline Lu2O3:Eu[J]. Chinese Physics C, 2005, 29(S1): 93-96.
LIU Miao, QI Ze-Ming, SHI Chao-Shu, XU Mei, ZHANG Wei-Ping, LIU Tao and XIE Ya-Ning. EXAFS Study the Local Structure of Nanocrystalline Lu2O3:Eu[J]. Chinese Physics C, 2005, 29(S1): 93-96. shu
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Received: 2005-10-31
Revised: 1900-01-01
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EXAFS Study the Local Structure of Nanocrystalline Lu2O3:Eu

    Corresponding author: SHI Chao-Shu,
  • Department of Physics, USTC, Hefei 230026, China2 National Synchrotron Radiation Laboratory, USTC, Hefei 230029, China3 Institute of High Energy Physics, CAS, Beijing 100049, China
  • Received Date: 2005-10-31
  • Accepted Date: 1900-01-01
  • Available Online: 2005-01-02

Abstract: A series of nanocrystalline Lu2O3:Eu(10%) with different sizes was studied by EXAFS. The result shows that the first coordination shells Lu-O and Eu-O have bigger coordination number and longer coordination distance with the size decreasing. The linear relation between nearest coordination distance and reciprocal value of particle diameter suggests that the system have two kinds of local structure state. One of them is noncrystal structure, which has big coordination number and long coordination distance comparing with the crystal situation. The component of noncrystal phase increases with the decreasing size and causes abnormal physical behavior such as novel luminescence property.

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