Alkali Metal Doped Organic Molecules on Insulators: Charge Impact on the Optical Properties

2010 ◽  
Vol 22 (36) ◽  
pp. 4064-4070 ◽  
Author(s):  
Thomas Dienel ◽  
Andreas Krause ◽  
Ronald Alle ◽  
Roman Forker ◽  
Klaus Meerholz ◽  
...  
2020 ◽  
Vol 751 ◽  
pp. 137467 ◽  
Author(s):  
Hao Zhang ◽  
Yunqing Tang ◽  
Zhixiang Liu ◽  
Zhi Zhu ◽  
Xu Tang ◽  
...  

ChemPhysChem ◽  
2009 ◽  
Vol 10 (2) ◽  
pp. 427-435 ◽  
Author(s):  
Kancharlapally Srinivasu ◽  
Kuttay R. S. Chandrakumar ◽  
Swapan K. Ghosh

1994 ◽  
Vol 49 (10) ◽  
pp. 7012-7025 ◽  
Author(s):  
L. Degiorgi ◽  
E. J. Nicol ◽  
O. Klein ◽  
G. Grüner ◽  
P. Wachter ◽  
...  

2009 ◽  
Vol 246 (11-12) ◽  
pp. 2693-2698 ◽  
Author(s):  
Christian Kramberger ◽  
Hendrik Rauf ◽  
Martin Knupfer ◽  
Hidetsugu Shiozawa ◽  
David Batchelor ◽  
...  

Crystals ◽  
2021 ◽  
Vol 11 (6) ◽  
pp. 608
Author(s):  
Xiao-Lin Wu ◽  
Ren-Shu Wang ◽  
Hui Yang ◽  
Jie Zhang ◽  
Ming-An Fu ◽  
...  

The development of potential magnetic materials in metal-doped polycyclic aromatic hydrocarbons has been a research hotspot in recent years. Here we have successfully synthesized stable potassium-doped 2,3-dimethylnaphthalene samples. The combination of first-principles calculations and XRD results identifies that doping of potassium into 2,3-dimethylnaphthalene forms a monoclinic structure with a molar ratio of 1:2 between potassium and molecule. The red shifts in the Raman spectra indicate that potassium 4s electrons are transferred to the organic molecules. The magnetic measurements show that the doped materials exhibit a temperature-independent magnetization in the temperature region of 1.8–300 K, which is consistent with the Pauli paramagnetic behavior. This is distinct from the diamagnetism of pristine material. Compared to the previous focus on benzene ring structure, our study of aromatic hydrocarbon derivatives of benzene ring opens a new route for the development of this field.


2009 ◽  
Vol 79-82 ◽  
pp. 1245-1248 ◽  
Author(s):  
Pei Lin Han ◽  
Xiao Jing Wang ◽  
Yan Hong Zhao ◽  
Chang He Tang

Electronic structure and optical properties of non-metals (N, S, F, P, Cl) -doped cubic NaTaO3 were investigated systematically by density functional theory (DFT). The results showed that the substitution of (N, S, P, Cl) for O in NaTaO3 was effective in narrowing the band-gap relative to the F-doped NaTaO3. The larger red shift of the absorption edge and the higher visible light absorption at about 520 nm were found for the (N and P)-doped NaTaO3. The excitation from the impurity states to the conduction band may account for the red shift of the absorption edge in an electron-deficiency non-metal doped NaTaO3. The obvious absorption in the visible light region for (N and P)-doped NaTaO3 provides an important guidance for the design and preparation of the visible light photoactive materials.


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