Mediated Charge Transfer at Nanoelectrodes: A New Approach to Electrochemical Reactivity Mapping and Nanosensing

Author(s):  
Koushik Barman ◽  
Xiang Wang ◽  
Rui Jia ◽  
Michael V. Mirkin
2020 ◽  
Vol 22 (39) ◽  
pp. 22190-22194
Author(s):  
Andrei V. Afonin ◽  
Danuta Rusinska-Roszak

We report a new approach to quantify the push–pull effect in molecules with internal charge transfer.


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

2018 ◽  
Vol 242 ◽  
pp. 8-16
Author(s):  
Nuno A. Barbosa ◽  
Kamil Wójcik ◽  
Robert Wieczorek ◽  
Maria Grzeszczuk

2012 ◽  
Vol 1414 ◽  
Author(s):  
Arash Takshi ◽  
Houman Yaghoubi ◽  
Daniel Jun ◽  
Rafael Saer ◽  
Ali Mahmoudzadeh ◽  
...  

ABSTRACTReaction centers (RCs) from natural photosynthetic cells are photoactive proteins, which generate electron-hole pairs in presence of light. In a new approach presented in this work, a solution of suspended RCs with mediators has been applied as the electrolyte to build electrochemical based photovoltaic (PV) devices. In this approach, the mediators transfer charges from the RCs to the electrodes (indirect charge transfer). Various metallic and wide bandgap semiconducting materials, including Carbon, Au, Indium Tin Oxide (ITO), SnO2, WO3, have been tested as the electrodes. Among all WO3, which is a semiconductor, have shown the largest photocurrent density with an amount of ∼5.1 μA/cm2. The results show that the material of the electrode can affect the rates of the reactions in the cell. Choosing an appropriate material for the electrode, the charge transfer from the mediators to the electrode would be rectified to achieve a large photocurrent.


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