Finley-Freundlich Red-Shift Hypothesis

1954 ◽  
Vol 96 (1) ◽  
pp. 224-225 ◽  
Author(s):  
H. L. Helfer
Keyword(s):  
1967 ◽  
Vol 155 (5) ◽  
pp. 1412-1413 ◽  
Author(s):  
Gerald D. Blum ◽  
Rainer Weiss

Nature ◽  
1962 ◽  
Vol 196 (4852) ◽  
pp. 367-368 ◽  
Author(s):  
R. A. ALPHER

Molecules ◽  
2020 ◽  
Vol 25 (18) ◽  
pp. 4230
Author(s):  
Andreas Windischbacher ◽  
Luca Steiner ◽  
Ritesh Haldar ◽  
Christof Wöll ◽  
Egbert Zojer ◽  
...  

In recent years, the photophysical properties of crystalline metal-organic frameworks (MOFs) have become increasingly relevant for their potential application in light-emitting devices, photovoltaics, nonlinear optics and sensing. The availability of high-quality experimental data for such systems makes them ideally suited for a validation of quantum mechanical simulations, aiming at an in-depth atomistic understanding of photophysical phenomena. Here we present a computational DFT study of the absorption and emission characteristics of a Zn-based surface-anchored metal-organic framework (Zn-SURMOF-2) containing anthracenedibenzoic acid (ADB) as linker. Combining band-structure and cluster-based simulations on ADB chromophores in various conformations and aggregation states, we are able to provide a detailed explanation of the experimentally observed photophysical properties of Zn-ADB SURMOF-2: The unexpected (weak) red-shift of the absorption maxima upon incorporating ADB chromophores into SURMOF-2 can be explained by a combination of excitonic coupling effects with conformational changes of the chromophores already in their ground state. As far as the unusually large red-shift of the emission of Zn-ADB SURMOF-2 is concerned, based on our simulations, we attribute it to a modification of the exciton coupling compared to conventional H-aggregates, which results from a relative slip of the centers of neighboring chromophores upon incorporation in Zn-ADB SURMOF-2.


2004 ◽  
Vol 279 (23) ◽  
pp. 24906
Author(s):  
Kenji Inaba ◽  
Yoh-hei Takahashi ◽  
Nobutaka Fujieda ◽  
Kenji Kano ◽  
Hideto Miyoshi ◽  
...  
Keyword(s):  

2021 ◽  
Vol 12 (4) ◽  
pp. 1228-1235
Author(s):  
Kamal K. Mishra ◽  
Kshetrimayum Borish ◽  
Gulzar Singh ◽  
Prakash Panwaria ◽  
Surajit Metya ◽  
...  
Keyword(s):  

Author(s):  
Francesco Ciaccia ◽  
Ivan Romero ◽  
Rene Serral-Gracia ◽  
Mario Nemirovsky
Keyword(s):  

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