Electrochemical Deposition of Organic Semiconductors on High Surface Area Electrodes for Solar Cells

2000 ◽  
Vol 104 (43) ◽  
pp. 10043-10046 ◽  
Author(s):  
Arie Zaban ◽  
Yishay Diamant
2004 ◽  
Vol 126 (3) ◽  
pp. 893-897 ◽  
Author(s):  
Yishay Diamant ◽  
Arie Zaban

A new design of a high surface area solid state organic solar cell is presented. The solid cell consists of a PPEI/TiOPc junction deposited inside a nanoporous TiO2 electrode, utilizing its high surface area (where PPEI=Perylenebisphenethylimide and TiOPc=Titanylphthalocyanine). The deposition of the organic semiconductors was performed by a new electrochemical deposition method, which is based on a simultaneous ionic dissolution and electrochemical re-neutralization of the organic materials. Although the overall conversion efficiency of the solid state cell is low, the analogous wet cell, TiO2/PPEI/TiOPc electrode in contact with redox electrolyte mediator, shows a photoresponse throughout the PPEI spectrum. The efficiencies of the various processes of photocurrent generation were examined and the results suggest that all steps are efficient except the electron transfer from the PPEI to the TiO2. This limitation is attributed to a thin dipole layer formed during the electrodeposition process, which alters the relative energetics at the PPEI/TiO2 interface.


2011 ◽  
Vol 2011 ◽  
pp. 1-5 ◽  
Author(s):  
Pavuluri Srinivasu ◽  
Surya Prakash Singh ◽  
Ashraful Islam ◽  
Liyuan Han

High surface area nanocrystalline zinc oxide material is fabricated using mesoporous nanostructured carbon as a sacrificial template through combustion process. The resulting material is characterized by XRD, N2 adsorption, HR-SEM, and HR-TEM. The nitrogen adsorption measurement indicates that the materials possess BET specific surface area ca. 30 m2/g. Electron microscopy images prove that the zinc oxide spheres possess particle size in the range of 0.12 μm–0.17 μm. The nanocrystalline zinc oxide spheres show 1.0% of energy conversion efficiency for dye-sensitized solar cells.


2015 ◽  
Vol 3 (42) ◽  
pp. 20849-20862 ◽  
Author(s):  
H. Ghorbani Shiraz ◽  
F. Razi Astaraie

Carbon structures present high surface area as well as low impedance, which lead to efficient solar cells.


Nanoscale ◽  
2016 ◽  
Vol 8 (26) ◽  
pp. 13059-13066 ◽  
Author(s):  
Wang Yang ◽  
Xiuwen Xu ◽  
Yalun Gao ◽  
Zhao Li ◽  
Cuiyu Li ◽  
...  

2013 ◽  
Vol 68 (7) ◽  
pp. 487-490 ◽  
Author(s):  
Dharani Sabba ◽  
Nripan Mathews ◽  
Julianto Chua ◽  
Stevin S. Pramana ◽  
Hemant K. Mulmudi ◽  
...  

Small ◽  
2010 ◽  
Vol 6 (19) ◽  
pp. 2176-2182 ◽  
Author(s):  
Wei Zhang ◽  
Rui Zhu ◽  
Lin Ke ◽  
Xizhe Liu ◽  
Bin Liu ◽  
...  

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