How Does Back-Reaction at the Conducting Glass Substrate Influence the Dynamic Photovoltage Response of Nanocrystalline Dye-Sensitized Solar Cells?

2005 ◽  
Vol 109 (15) ◽  
pp. 7392-7398 ◽  
Author(s):  
P. J. Cameron ◽  
L. M. Peter
2010 ◽  
Vol 1270 ◽  
Author(s):  
Braden Bills ◽  
Mariyappan Shanmugam ◽  
Mahdi Farrokh Baroughi ◽  
David Galipeau

AbstractThe performance of dye-sensitized solar cells (DSSCs) is limited by the back-reaction of photogenerated electrons from the porous titanium oxide (TiO2) nanoparticles back into the electrolyte solution, which occurs almost exclusively through the interface. This and the fact that DSSCs have a very large interfacial area makes their performance greatly dependant on the density and activity of TiO2 surface states. Thus, effectively engineering the TiO2/dye/electrolyte interface to reduce carrier losses is critically important for improving the photovoltaic performance of the solar cell. Atomic layer deposition (ALD), which uses high purity gas precursors that can rapidly diffuse through the porous network, was used to grow a conformal and controllable aluminum oxide (Al2O3) and hafnium oxide (HfO2) ultra thin layer on the TiO2 surface. The effects of this interfacial treatment on the DSSC performance was studied with dark and illuminated current-voltage and electrochemical impedance spectroscopy (EIS) measurements.


2014 ◽  
Vol 14 (12) ◽  
pp. 1607-1611 ◽  
Author(s):  
Thanh-Tung Duong ◽  
Ta Quoc Tuan ◽  
Dang Viet Anh Dung ◽  
Nguyen Van Quy ◽  
Dinh-Lam Vu ◽  
...  

2019 ◽  
Vol 16 (1) ◽  
pp. 46
Author(s):  
Nurhidayah Nurhidayah ◽  
Suwarni Suwarni ◽  
Sri Rahayu Alfitri Usna ◽  
Muhammad Ficky Afrianto ◽  
Faizar Farid

The production of Dye Sensitized Solar Cells (DSSC) has been done. The transparent electrode is made by mixing of TiO2 and graphite 14% (TiO2:C14%). TiO2:C14% colloid is deposited on a conductive glass substrate Fluorine Doped Tin Oxide (FTO) by spin coating method at 500, 1000 and 1500 rpm during 50 second. Then, the layer is soaked of 24 hours in dye taken from the extract of rosella. SEM and XRD characterization are performed for looking properties of DSSC materials. The efficiency of DSSC is calculated by using the characteristic circuit IV curve. The highest efficiency value is obtained when the thickest active layer (0,9 mm) at 500 rpm, the resulting efficiency is 0,014%.


Sign in / Sign up

Export Citation Format

Share Document