Stimulating intra- and intermolecular charge transfer and nonlinear optical response for biphenalenyl biradicaloid dimer under an external electric field

2018 ◽  
Vol 20 (27) ◽  
pp. 18699-18706 ◽  
Author(s):  
Feng-Wei Gao ◽  
Hong-Liang Xu ◽  
Shabbir Muhammad ◽  
Zhong-Min Su

External electric fields were found to induce intra- and intermolecular charge transfer and strengthen the second-order nonlinear optical responses of π-dimers.

2017 ◽  
Vol 19 (47) ◽  
pp. 31958-31964 ◽  
Author(s):  
Feng-Wei Gao ◽  
Hong-liang Xu ◽  
Zhong-Min Su

Different strengths of external electric fields enhance the stability, control the inter-molecular charge transfer and strengthen the nonlinear optical responses of a π-dimer.


2021 ◽  
Vol 23 (1) ◽  
pp. 405-414
Author(s):  
Li Wang ◽  
Yan-Li Liu ◽  
Sheng-Hui Chen ◽  
De He ◽  
Quan-Jiang Li ◽  
...  

The convex–convex interaction was shown to be helpful for producing more obvious intermolecular charge transfer and a larger nonlinear optical response than the concave–convex interaction.


1994 ◽  
Vol 08 (20n21) ◽  
pp. 2921-2933 ◽  
Author(s):  
L. W. ZHOU ◽  
J. F. YE ◽  
R. B. TAO ◽  
Y. TANG ◽  
J. F. PENG ◽  
...  

Linear and nonlinear optical study on electrorheological (ER) fluids is reported. The ER fluids under the investigation were glass beads, zeolite and ferroelectrics. The linear optical response of some ER fluids showed sharp changes near critical electric fields. An enhancement of electric field induced second harmonic generations (EFISH) was observed as the function of E2, where E is the external electric field. The said enhancement is considered to be corresponding to a modulation of the material's refractive index associated with the electric field induced polarization of the delocalized electrons. The enhanced nonlinear optical response on the transition between liquid and solid states can be related to the phase transition in ER fluids.


2020 ◽  
Author(s):  
Paolo Raiteri ◽  
Peter Kraus ◽  
Julian Gale

Molecular dynamics simulations of the liquid-liquid interface between water and 1,2-Dichloroethane in the presence of weak external electric fields.<div>The effect of the use of 3D periodic Ewald summation and the effect of the simulation setup are discussed.</div><div>A new simple geometric method for designing the simulation cell is proposed. This method was thoroughly tested shown that it mitigates any artefacts to the use of 3D Ewald summation with external electric field.</div>


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