singlet transition
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scholarly journals Spin-Singlet Transition in the Magnetic Hybrid Compound from a Spin-Crossover Fe(III) Cation and π-Radical Anion

Inorganics ◽  
2017 ◽  
Vol 5 (3) ◽  
pp. 54 ◽  
Author(s):  
Kazuyuki Takahashi ◽  
Takahiro Sakurai ◽  
Wei-Min Zhang ◽  
Susumu Okubo ◽  
Hitoshi Ohta ◽  
...  
Keyword(s):  
Radical Anion ◽  
Spin Crossover ◽  
Hybrid Compound ◽  
Spin Singlet ◽  
Singlet Transition

scholarly journals Entanglement properties of the antiferromagnetic-singlet transition in the Hubbard model on bilayer square lattices

2014 ◽  
Vol 90 (15) ◽  
Author(s):  
Chia-Chen Chang ◽  
Rajiv R. P. Singh ◽  
Richard T. Scalettar
Keyword(s):  
Hubbard Model ◽  
Singlet Transition

Axial ligand effects on the diradical characters and second hyperpolarizabilities of open-shell singlet transition-metal dinuclear complexes

2014 ◽  
Vol 608 ◽  
pp. 68-73 ◽  
Author(s):  
Taishi Yamada ◽  
Shota Takamuku ◽  
Hiroshi Matsui ◽  
Benoît Champagne ◽  
Masayoshi Nakano
Keyword(s):  
Transition Metal ◽  
Open Shell ◽  
Axial Ligand ◽  
Dinuclear Complexes ◽  
Ligand Effects ◽  
Singlet Transition

Spectroscopic Properties Calculation of some 1, 8-Naphthalimide Derivatives

2013 ◽  
Vol 760-762 ◽  
pp. 724-727
Author(s):  
Qi Qi ◽  
Fan Qi ◽  
Yu Qiao Wang ◽  
Zheng Jian Qi ◽  
Yue Ming Sun
Keyword(s):  
Density Functional Theory ◽  
Density Functional ◽  
Emission Spectra ◽  
Spectroscopic Properties ◽  
Time Dependent ◽  
Functional Theory ◽  
Absorption And Emission ◽  
Absorption And Emission Spectra ◽  
Dependent Density ◽  
Singlet Transition

The absorption and emission spectra of 1,8-naphthalimide derivatives have been calculated by time-dependent density functional theory. Their lowest singlet transition states can be described as the promotion of electrons from the HOMO to the LUMO. Substituents on naphthalimic ring seldom extend the conjugation of the central naphthalimic system.

Enhancement of the Third-Order Nonlinear Optical Properties in Open-Shell Singlet Transition-Metal Dinuclear Systems: Effects of the Group, of the Period, and of the Charge of the Metal Atom

2012 ◽  
Vol 116 (22) ◽  
pp. 5501-5509 ◽  
Author(s):  
Hitoshi Fukui ◽  
Yudai Inoue ◽  
Taishi Yamada ◽  
Soichi Ito ◽  
Yasuteru Shigeta ◽  
...  
Keyword(s):  
Optical Properties ◽  
Transition Metal ◽  
Metal Atom ◽  
Nonlinear Optical ◽  
Open Shell ◽  
Nonlinear Optical Properties ◽  
Third Order ◽  
The Third ◽  
Singlet Transition

Origin of the Enhancement of the Second Hyperpolarizabilities in Open-Shell Singlet Transition-Metal Systems with Metal–Metal Multiple Bonds

2011 ◽  
Vol 2 (16) ◽  
pp. 2063-2066 ◽  
Author(s):  
Hitoshi Fukui ◽  
Masayoshi Nakano ◽  
Yasuteru Shigeta ◽  
Benoît Champagne
Keyword(s):  
Transition Metal ◽  
Open Shell ◽  
Multiple Bonds ◽  
Metal Metal ◽  
Singlet Transition

Triplet to singlet transition induced low efficiency roll-off in green phosphorescent organic light-emitting diodes

2011 ◽  
Vol 519 (8) ◽  
pp. 2540-2543 ◽  
Author(s):  
Zisheng Su ◽  
Wenlian Li ◽  
Bei Chu ◽  
Shuanghong Wu
Keyword(s):  
Light Emitting Diodes ◽  
Organic Light Emitting Diodes ◽  
Light Emitting ◽  
Organic Light ◽  
Low Efficiency ◽  
Singlet Transition

scholarly journals Report on Optical Absorption, Steady-state Emission and Time-resolved Emission Spectroscopy of Carbazole-based Conjugated Polymers

2010 ◽  
Vol 3 (1) ◽  
pp. 13
Author(s):  
R. K. Dey ◽  
M. A. H. Chowdury ◽  
N. Chawdhury ◽  
A. P. Monkman
Keyword(s):  
Conjugated Polymers ◽  
Emission Spectroscopy ◽  
Decay Kinetics ◽  
Triplet Energy ◽  
Time Resolved ◽  
Transition Energies ◽  
Energy Gaps ◽  
Triplet Excited States ◽  
Kinetics Of ◽  
Singlet Transition

Opto-electronic properties of three new carbazole based co-polymers were investigated. The decay kinetics of triplet emission of the co-polymers was observed. Several findings such as optical band-gap, singlet to singlet transition energies, triplet to singlet transition energies, exchange energies (?EST) have been presented. In comparison to the other material carbazole-oxadiazole based polymer with OMe, P1, H21C10, P2 and H12C10O, P3 exchange energy is below 0.5 eV and triplet energy is significantly higher. The energy gaps between singlet and triplet excited states are 0.44-0.47 eV. From decay kinetics the triplet excited state life-times were found to be several orders of ms at 10-13 K that reduces to less than 3 ms at room temperature.Keywords: Time resolved emission spectroscopy; Carbazole; Conjugated polymers.© 2011 JSR Publications. ISSN: 2070-0237 (Print); 2070-0245 (Online). All rights reserved.doi:10.3329/jsr.v3i1.4666                J. Sci. Res. 3 (1), 13-24 (2011)

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