Remarkable nonlinear optical response of excess electron compounds: theoretically designed alkali-doped aziridine M–(C2NH5)n

2017 ◽  
Vol 19 (35) ◽  
pp. 23951-23959 ◽  
Author(s):  
Bo Li ◽  
Chao Xu ◽  
Xuan Xu ◽  
Chaoyuan Zhu ◽  
Feng Long Gu

Newly theoretically designed alkali-doped aziridine M–(C2NH5)4 shows a remarkable NLO response and its first hyperpolarizability is 10 to 100 times larger than those of M@Calix[4]pyrrole.

CrystEngComm ◽  
2021 ◽  
Vol 23 (13) ◽  
pp. 2509-2512
Author(s):  
Wen-Tao Xu ◽  
Jun-Chao Liu ◽  
Yu-Ling Zeng ◽  
Hua Zhang ◽  
Zhong-Xia Wang

An organic molecular-ionic crystal of (TPPO–H)2SO4 exhibits moderate NLO response which is twice that of KDP and competing hydrogen-bonding interactions triggered high-Tc phase transition.


2019 ◽  
Vol 7 (3) ◽  
pp. 645-653 ◽  
Author(s):  
Hui-Min He ◽  
Josep M. Luis ◽  
Wei-Hong Chen ◽  
Dan Yu ◽  
Ying Li ◽  
...  

The endohedral all-metal electride cages 2e−Mg2+(M@E12)2−Ca2+ (M = Ni, Pd, and Pt; E = Ge, Sn, and Pb) exhibit a better NLO response.


2015 ◽  
Vol 44 (9) ◽  
pp. 4207-4214 ◽  
Author(s):  
Jia-Jun Wang ◽  
Zhong-Jun Zhou ◽  
Yang Bai ◽  
Hui-Min He ◽  
Di Wu ◽  
...  

A new strategy of utilizing the cage size effect for simultaneously enhancing the β0 and the VIP.


2018 ◽  
Vol 17 (05) ◽  
pp. 1850033 ◽  
Author(s):  
Hui-Ying Wang ◽  
Li-Xue Jing ◽  
Jin-Ting Ye ◽  
Hong-Qiang Wang ◽  
Yong-Qing Qiu

In this paper, a series of cationic iridium complexes [(2-phenylpyridine)2(2,2[Formula: see text]-bipyridine)Ir][Formula: see text] which substituted phenyl on different ligands position have been systematically investigated by density functional theory (DFT) method. Significantly, the first hyperpolarizability [Formula: see text] values can be enhanced by introducing phenyl on 2-phenylpyridine ligands R1 or R2, whereas substituting phenyl on 2,2[Formula: see text]-bipyridine ligands R3 result in a decreasing [Formula: see text] values. The [Formula: see text] values exhibit obvious connection with the corresponding HOMO and LUMO energy gap. Furthermore, the time-dependent (TD) DFT calculations suggest that the enhanced [Formula: see text] values are related to obvious charge transfer from 2-phenylpyridine ligands to 2,2[Formula: see text]-bipyridine ligands. The investigation of frequency-dependent first hyperpolarizability [Formula: see text] ([Formula: see text]; [Formula: see text], 0) and [Formula: see text] ([Formula: see text]; [Formula: see text], [Formula: see text]) shown less dispersion effect at the low-frequency region for all of the studied complexes. Overall, tuning phenyl on the different ligands position can be seen as an effective strategy to modulate the second-order nonlinear optical response for these iridium complexes, which is benefit to theoretical and experimental further investigation.


2018 ◽  
Vol 47 (25) ◽  
pp. 8292-8300 ◽  
Author(s):  
Claus Hierlinger ◽  
David B. Cordes ◽  
Alexandra M. Z. Slawin ◽  
Alessia Colombo ◽  
Claudia Dragonetti ◽  
...  

A novel cationic Ir(iii) complex, characterized by a large NLO response, can be incorporated into a polymeric film leading to a good second-harmonic generation.


RSC Advances ◽  
2022 ◽  
Vol 12 (1) ◽  
pp. 365-377
Author(s):  
Atazaz Ahsin ◽  
Ahmed Bilal Shah ◽  
Khurshid Ayub

Herein, the geometric, electronic, and nonlinear optical properties of excess electron zintl clusters Ge5AM3, Ge9AM5, and Ge10AM3 (AM = Li, Na, and K) are investigated.


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