Intense Red Emissive Organic Crystals with Elastic Bending Ability and Optical Waveguiding Behaviour

CrystEngComm ◽  
2021 ◽  
Author(s):  
Lifu Cao ◽  
Baolei Tang ◽  
Xu Yu ◽  
Kaiqi Ye ◽  
Hongyu Zhang

Orange (Cry-1O) and red (Cry-1R) emissive crystals with mechanical brittleness and elasticity, respectively, were obtained by modifying the crystallization conditions based on a green emissive molecule. Light transducing capability of...

2021 ◽  
Author(s):  
Hongyu Zhang ◽  
Linfeng Lan ◽  
Huapeng Liu ◽  
Xu Yu ◽  
Xiaokong Liu

2019 ◽  
Vol 55 (98) ◽  
pp. 14749-14752 ◽  
Author(s):  
Khushboo Yadava ◽  
Xian Qin ◽  
Xiaogang Liu ◽  
Jagadese J. Vittal

Of the three different types of crystal morphologies of trans-pab, the bent nature is attributed to the small amount of cis-form in the packing of trans-pab, while the elastic bending is due to anisotropic crystal packing.


Author(s):  
E. Knapek ◽  
H. Formanek ◽  
G. Lefranc ◽  
I. Dietrich

A few years ago results on cryoprotection of L-valine were reported, where the values of the critical fluence De i.e, the electron exposure which decreases the intensity of the diffraction reflections by a factor e, amounted to the order of 2000 + 1000 e/nm2. In the meantime a discrepancy arose, since several groups published De values between 100 e/nm2 and 1200 e/nm2 /1 - 4/. This disagreement and particularly the wide spread of the results induced us to investigate more thoroughly the behaviour of organic crystals at very low temperatures during electron irradiation.For this purpose large L-valine crystals with homogenuous thickness were deposited on holey carbon films, thin carbon films or Au-coated holey carbon films. These specimens were cooled down to nearly liquid helium temperature in an electron microscope with a superconducting lens system and irradiated with 200 keU-electrons. The progress of radiation damage under different preparation conditions has been observed with series of electron diffraction patterns and direct images of extinction contours.


CICTP 2020 ◽  
2020 ◽  
Author(s):  
Zhiwei Zhu ◽  
Guofeng Zeng ◽  
Feng Ye ◽  
Guoqiang Wang ◽  
Yihong Yuan
Keyword(s):  

Author(s):  
L. N. Demianets ◽  
G. A. Emelchenko ◽  
J. Hesse ◽  
N. Karl ◽  
A. N. Lobachev ◽  
...  
Keyword(s):  

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