Fullerene Superlattices Containing Charge Transfer Complexes for Enhanced Nonlinear Optical Performance

Nanoscale ◽  
2022 ◽  
Author(s):  
Jinrui Li ◽  
Hongguang Li ◽  
Jingcheng Hao

To improve the nonlinear optical (NLO) properties of fullerene C60, chemical modifications are normally needed to construct donor-π-acceptor (D-π-A) system, which needs tedious and time-consuming synthetic procedures. In addition, the...

2018 ◽  
Vol 105 ◽  
pp. 94-101 ◽  
Author(s):  
M.C. Divyasree ◽  
K. Vasudevan ◽  
K.K. Abdul Basith ◽  
P. Jayakrishnan ◽  
M.T. Ramesan ◽  
...  

2017 ◽  
Vol 5 (10) ◽  
pp. 2559-2565 ◽  
Author(s):  
Fukun Ma ◽  
Mengxia Wang ◽  
Yongliang Shao ◽  
Lijuan Wang ◽  
Yongzhong Wu ◽  
...  

A novel ‘thermal substitution’ method is used to prepare BCN nanosheets and the as-obtained nanosheets show controllable NLO properties.


2008 ◽  
Vol 80 (3) ◽  
pp. 475-484 ◽  
Author(s):  
Tien-Yau Luh ◽  
Hsin-Chieh Lin ◽  
Chih-Ming Chou

By employing the furan annulation protocol, a new series of furan-containing teraryl [n.2]cyclophenes (n = 2-6 and 12) are prepared. These cyclophenes exhibit charge-transfer character in the absorption spectra and unusually large Stokes shifts in the emission spectra. They have neither particularly strong electron-donating moieties nor electron-withdrawing groups, but exhibit unusual second-order nonlinear optical (NLO) properties. The π-systems in teraryl system and in the bridging double bond are highly twisted. Interaction between these twisted π-systems may account for the significant enhancement in hyperpolarizability. Thiophene analog behaved similarly. The five-membered heteroaromatic rings may not only serve as electron donors, but also may accommodate the appropriate geometry to enable the interactions between the oligoaryl systems and the double bond leading to unusual photophysical and NLO properties.


1992 ◽  
Vol 247 ◽  
Author(s):  
Hailing Ddan ◽  
Dwaine O. Cohan ◽  
Theodore O. Poehler

ABSTRACTIn order to obtain desired switching and memory properties by carrying out chemical modifications on CuTCNQ-type charge-transfer complexes, systematic explorations on various donor and acceptor reactivities are necessary. Thus, the reactivities of thirty-three different metals with TCNQ and four organo-acceptors with Cu in an CH3CN solution were qualitatively studied, as well as the solvent effects on the complex film formation. Uniform coverage of Metallo-organic complex films were obtained (in the order of reactivities) on TCNQ complexes of Tl, Ca, Mg, Cu, Ag, Mn and Cd, as well as on Cu complexes of TCNQ(OET)2, BTCNQ and TCNQ(i-Pr)2. The donor reactivity is affected by its surface immunity (behavior) towards the acceptor attack and the solubility of the formed charge-transfer complex in the chosen solvent. The acceptor reactivity is affected mainly by a steric effect, followed by an inductive effect of the substituents. The complex film morphology and quality could be optimized by matching the relative reactivity of donor vs. acceptor and by choosing the appropriate solvent with proper solubility of the formed complex.


Author(s):  
Jidong Jia ◽  
Xingzhi Wu ◽  
Xueru Zhang ◽  
Yuxiao Wang ◽  
Junyi Yang ◽  
...  

Intramolecular charge transfer (ICT) is an important factor in the nonlinear optical (NLO) properties of organic molecules. In order to study the effect of ICT on two-photon absorption (TPA) and...


2016 ◽  
Vol 62 ◽  
pp. 80-89 ◽  
Author(s):  
Meenakshi Rana ◽  
Nidhi Singla ◽  
Amrita Chatterjee ◽  
Abhishek Shukla ◽  
Papia Chowdhury

1997 ◽  
Vol 90 (3) ◽  
pp. 407-413
Author(s):  
MARC KELEMEN ◽  
CHRISTOPH WACHTER ◽  
HUBERT WINTER ◽  
ELMAR DORMANN ◽  
RUDOLF GOMPPER ◽  
...  

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