Correlation between the in-plain substrate strain and electrocatalytic activity of strontium ruthenate thin films in dye-sensitized solar cells

2016 ◽  
Vol 4 (28) ◽  
pp. 10794-10800 ◽  
Author(s):  
Tao Liu ◽  
Juan Hou ◽  
Bing Wang ◽  
Feiming Bai ◽  
Haijun Chen ◽  
...  
Keyword(s):  
Thin Films ◽  
Solar Cells ◽  
Electrocatalytic Activity ◽  
Tensile Strain ◽  
Counter Electrode ◽  
Dye Sensitized Solar Cells ◽  
Strontium Ruthenate ◽  
Dye Sensitized ◽  
Substrate Strain ◽  
Sensitized Solar Cells

Solar cells with a SRO/MAO counter electrode show an increased PCE compared to those with SRO/STO due to in-plane tensile strain.

Facile Water-based Spray Pyrolysis of Earth-Abundant Cu2FeSnS4 Thin Films as an Efficient Counter Electrode in Dye-Sensitized Solar Cells

2014 ◽  
Vol 6 (20) ◽  
pp. 17661-17667 ◽  
Author(s):  
Rajiv Ramanujam Prabhakar ◽  
Nguyen Huu Loc ◽  
Mulmudi Hemant Kumar ◽  
Pablo P. Boix ◽  
Sun Juan ◽  
...  
Keyword(s):  
Thin Films ◽  
Solar Cells ◽  
Spray Pyrolysis ◽  
Counter Electrode ◽  
Dye Sensitized Solar Cells ◽  
Dye Sensitized ◽  
Water Based ◽  
Earth Abundant ◽  
Sensitized Solar Cells

Electrical Conducting Diamond Thin-Films: An Alternative Counter Electrode Material for Dye Sensitized Solar Cells

2011 ◽  
Vol 1282 ◽  
Author(s):  
R.D. Vispute ◽  
Alok Vats ◽  
Vinod Venkatesan ◽  
Andrew Seiser ◽  
Jaurette Dozier ◽  
...  
Keyword(s):  
Thin Films ◽  
Electrical Resistivity ◽  
Solar Cells ◽  
Electrode Material ◽  
Counter Electrode ◽  
Dye Sensitized Solar Cells ◽  
Dye Sensitized ◽  
Diamond Thin Films ◽  
Sensitized Solar Cells ◽  
Counter Electrode Material

ABSTRACTCarbon is a favorable alternative as counter electrode material for dye sensitized solar cells (DSSC) as compared to Pt. Various carbon materials such as carbon nanotubes (CNT), activated carbon (AC) and carbon nanofibers have been investigated as counter electrodes for DSSC applications, based on their high electrochemical activity, high specific surface area, chemical inertness and high electrical conductivity. Among various phases of carbon, diamond is the most robust and chemical inert material that can be used for electrode application. It has band gap of 5.5 eV, high thermal conductivity. its electrical resistivity can be tuned by doping such as boron. In this work, we investigate boron doped diamond thin film electrode for DSSCs. The conductive diamond thin electrode films were grown using Blue Wave hot wire chemical vapor deposition (HWCVD) system. The electrical resistance in diamond thin films was tuned by controlling grow temperature, filament power, dopant concentration and sp3/sp2 ratio in the film, it thickness, and initial seeding process. Scanning electron microscopy, Raman spectroscopy and electrical resistivity measurement were used to characterize morphology, diamond quality and electrode conductivity, respectively. Diamond film electrodes with optimized surface morphology and electrical characteristics were used for DSSC fabrication. We used nanocrystalline TiO2 paste (P25 Degussa) with average particle size of 25nm as an active layer, the electrolyte comprised of a LiI/I2 electrolyte in acetonitrile (CH3CN), a Ru based metal complex dye [cis-diisothiocyanato-bis(2,2’-bipyridyl-4,4’-dicarboxylato) ruthenium(II) bis(tetrabutylammonium)] OR N719 was used as sensitizer. The photovoltaic performance was determined using J-V characteristics under standard illumination conditions and was compared to a reference DSSC with Pt counter electrode. Results are discussed in the context of diamond electrical and durability and chemical stability of diamond films against most commonly used family of iodine based electrolytes.

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