scholarly journals Quantum effects in energy and charge transfer in an artificial photosynthetic complex

2011 ◽  
Vol 134 (24) ◽  
pp. 244103 ◽  
Author(s):  
Pulak Kumar Ghosh ◽  
Anatoly Yu. Smirnov ◽  
Franco Nori
RSC Advances ◽  
2016 ◽  
Vol 6 (62) ◽  
pp. 57293-57305 ◽  
Author(s):  
Jian-Yong Liu ◽  
Xue-Ni Hou ◽  
Ye Tian ◽  
Lizhi Jiang ◽  
Shuiquan Deng ◽  
...  

The bis(triphenylamine)–BODIPY–C60 artificial photosynthetic system has been prepared and studied for its photoinduced transfer processes in polar and nonpolar solvents using various steady-state and time-resolved spectroscopic techniques.


2018 ◽  
Vol 122 (14) ◽  
pp. 4131-4140 ◽  
Author(s):  
Christopher McCleese ◽  
Zhanqian Yu ◽  
Nopondo N. Esemoto ◽  
Charles Kolodziej ◽  
Buddhadev Maiti ◽  
...  

2016 ◽  
Vol 18 (16) ◽  
pp. 10964-10975 ◽  
Author(s):  
Eugeny A. Ermilov ◽  
Jian-Yong Liu ◽  
Roel Menting ◽  
Ying-Si Huang ◽  
Beate Röder ◽  
...  

A molecular triad of boron dipyrromethene and phthalocyanine has been prepared which absorbs widely in the UV-Vis region and undergoes efficient energy and charge transfer processes, allowing it to serve as an artificial photosynthetic model.


ACS Photonics ◽  
2015 ◽  
Vol 2 (7) ◽  
pp. 987-992 ◽  
Author(s):  
Vikram Kulkarni ◽  
Alejandro Manjavacas

2017 ◽  
Vol 82 (19) ◽  
pp. 10350-10359 ◽  
Author(s):  
Kateřina Bártová ◽  
Lucie Čechová ◽  
Eliška Procházková ◽  
Ondřej Socha ◽  
Zlatko Janeba ◽  
...  

Author(s):  
J. Taft∅

It is well known that for reflections corresponding to large interplanar spacings (i.e., sin θ/λ small), the electron scattering amplitude, f, is sensitive to the ionicity and to the charge distribution around the atoms. We have used this in order to obtain information about the charge distribution in FeTi, which is a candidate for storage of hydrogen. Our goal is to study the changes in electron distribution in the presence of hydrogen, and also the ionicity of hydrogen in metals, but so far our study has been limited to pure FeTi. FeTi has the CsCl structure and thus Fe and Ti scatter with a phase difference of π into the 100-ref lections. Because Fe (Z = 26) is higher in the periodic system than Ti (Z = 22), an immediate “guess” would be that Fe has a larger scattering amplitude than Ti. However, relativistic Hartree-Fock calculations show that the opposite is the case for the 100-reflection. An explanation for this may be sought in the stronger localization of the d-electrons of the first row transition elements when moving to the right in the periodic table. The tabulated difference between fTi (100) and ffe (100) is small, however, and based on the values of the scattering amplitude for isolated atoms, the kinematical intensity of the 100-reflection is only 5.10-4 of the intensity of the 200-reflection.


Author(s):  
Yimei Zhu ◽  
J. Tafto

The electron holes confined to the CuO2-plane are the charge carriers in high-temperature superconductors, and thus, the distribution of charge plays a key role in determining their superconducting properties. While it has been known for a long time that in principle, electron diffraction at low angles is very sensitive to charge transfer, we, for the first time, show that under a proper TEM imaging condition, it is possible to directly image charge in crystals with a large unit cell. We apply this new way of studying charge distribution to the technologically important Bi2Sr2Ca1Cu2O8+δ superconductors.Charged particles interact with the electrostatic potential, and thus, for small scattering angles, the incident particle sees a nuclei that is screened by the electron cloud. Hence, the scattering amplitude mainly is determined by the net charge of the ion. Comparing with the high Z neutral Bi atom, we note that the scattering amplitude of the hole or an electron is larger at small scattering angles. This is in stark contrast to the displacements which contribute negligibly to the electron diffraction pattern at small angles because of the short g-vectors.


2020 ◽  
Vol 8 (40) ◽  
pp. 20963-20969 ◽  
Author(s):  
Wei Chen ◽  
Guo-Bo Huang ◽  
Hao Song ◽  
Jian Zhang

An efficient charge transfer channel for improving the photocatalytic water splitting activity and durability of CdS without sacrificial agents.


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