Correlation between structure and intervalence charge-transfer transitions in nanocrystallineCoFe2−xMxO4(M=Mn,Al,Sc)thin films

2003 ◽  
Vol 68 (2) ◽  
Author(s):  
Biao Zhou ◽  
Ya-Wen Zhang ◽  
Yue-Jun Yu ◽  
Chun-Sheng Liao ◽  
Chun-Hua Yan ◽  
...  
Keyword(s):  
Thin Films ◽  
Charge Transfer ◽  
Charge Transfer Transitions ◽  
Intervalence Charge Transfer

scholarly journals Exploiting exciton coupling of ligand radical intervalence charge transfer transitions to tune NIR absorption

2018 ◽  
Vol 9 (6) ◽  
pp. 1610-1620 ◽  
Author(s):  
Ryan M. Clarke ◽  
Tiffany Jeen ◽  
Serena Rigo ◽  
John R. Thompson ◽  
Loren G. Kaake ◽  
...  
Keyword(s):  
Charge Transfer ◽  
Rational Design ◽  
Near Infrared ◽  
Relative Orientation ◽  
Exciton Coupling ◽  
Salen Complexes ◽  
Nir Absorption ◽  
Charge Transfer Transitions ◽  
Intervalence Charge Transfer

We detail the rational design of a series of bimetallic bis-ligand radical Ni salen complexes in which the relative orientation of the ligand radical chromophores provides a mechanism to tune the energy of intense intervalence charge transfer (IVCT) bands in the near infrared (NIR) region.

Self-calibrated optical thermometer LuNbO4:Pr3+/Tb3+ based on intervalence charge transfer transitions

2018 ◽  
Vol 5 (10) ◽  
pp. 2456-2461 ◽  
Author(s):  
Yanfang Wu ◽  
Hao Suo ◽  
Xiaoqi Zhao ◽  
Ziwei Zhou ◽  
Chongfeng Guo
Keyword(s):  
Charge Transfer ◽  
High Sensitivity ◽  
Charge Transfer Transitions ◽  
Intervalence Charge Transfer ◽  
Optical Thermometer

High sensitivity thermometer LuNbO4:Pr3+/Tb3+ based on intervalence charge transfer transitions.

A New Mixed Valent Europium Chloride: Na5Eu7Cl22

2002 ◽  
Vol 57 (8) ◽  
pp. 901-907 ◽  
Author(s):  
Claudia Wickleder
Keyword(s):  
Charge Transfer ◽  
Crystal Field ◽  
Lower Energy ◽  
Coordination Polyhedra ◽  
Coordination Numbers ◽  
Charge Transfer Transitions ◽  
Intervalence Charge Transfer ◽  
Unknown Structure ◽  
Europium Chloride ◽  
The Eu

The reaction of NaCl, EuCl2 and EuCl3 yields violet crystals of the new mixed valent chloride Na5Eu7Cl22 which crystallizes with a hitherto unknown structure (orthorhombic, Pmmn, Z = 2, a = 2525.9(4), b=846.91(9), c = 781.72(8) pm). The structure contains four crystallographically different europiumions,which can be attributed toEu2+ or Eu3+ with respect to their coordination numbers and Eu-Cl distances. The [EuClx] coordination polyhedra are connected to chains along the [001] direction. Absorption spectra show transitions which can be assigned either to Eu3+ or Eu2+ ions or to intervalence charge transfer transitions (IVCT). The latter are at lower energy compared to other mixed valent europium chlorides. The occurence of IVCT and the number of the crystal field levels of the Eu3+ ions reveal that the sites of the europium ions are occupied for a small amount by ions of the respective other valence.

Sign in / Sign up

Export Citation Format

Share Document