Enhancement of Photogenerated Electron Transport in Dye-Sensitized Solar Cells with Introduction of a Reduced Graphene Oxide-TiO2 Junction

2011 ◽  
Vol 17 (39) ◽  
pp. 10832-10837 ◽  
Author(s):  
Junling Song ◽  
Zongyou Yin ◽  
Zijiang Yang ◽  
Pitchamuthu Amaladass ◽  
Shixin Wu ◽  
...  
Keyword(s):  
Graphene Oxide ◽  
Solar Cells ◽  
Electron Transport ◽  
Reduced Graphene Oxide ◽  
Dye Sensitized Solar Cells ◽  
Photogenerated Electron ◽  
Dye Sensitized ◽  
Reduced Graphene ◽  
Sensitized Solar Cells

scholarly journals Influence of Sputtering Temperature of TiO2 Deposited onto Reduced Graphene Oxide Nanosheet as Efficient Photoanodes in Dye-Sensitized Solar Cells

Molecules ◽  
2020 ◽  
Vol 25 (20) ◽  
pp. 4852 ◽  
Author(s):  
Foo Wah Low ◽  
Goh Chin Hock ◽  
Muhammad Kashif ◽  
Nurul Asma Samsudin ◽  
Chien Fat Chau ◽  
...  
Keyword(s):  
Graphene Oxide ◽  
Solar Cells ◽  
Reduced Graphene Oxide ◽  
Dye Sensitized Solar Cells ◽  
Rf Sputtering ◽  
Photogenerated Electron ◽  
Charge Carrier Mobility ◽  
Dye Sensitized ◽  
Reduced Graphene ◽  
Sensitized Solar Cells

Renewable solar energy is the key target to reduce fossil fuel consumption, minimize global warming issues, and indirectly minimizes erratic weather patterns. Herein, the authors synthesized an ultrathin reduced graphene oxide (rGO) nanosheet with ~47 nm via an improved Hummer’s method. The TiO2 was deposited by RF sputtering onto an rGO nanosheet with a variation of temperature to enhance the photogenerated electron or charge carrier mobility transport for the photoanode component. The morphology, topologies, element composition, crystallinity as well as dye-sensitized solar cells’ (DSSCs) performance were determined accordingly. Based on the results, FTIR spectra revealed presence of Ti-O-C bonds in every rGO-TiO2 nanocomposite samples at 800 cm–1. Besides, XRD revealed that a broad peak of anatase TiO2 was detected at ~25.4° after incorporation with the rGO. Furthermore, it was discovered that sputtering temperature of 120 °C created a desired power conversion energy (PCE) of 7.27% based on the J-V plot. Further increase of the sputtering temperature to 160 °C and 200 °C led to excessive TiO2 growth on the rGO nanosheet, thus resulting in undesirable charge recombination formed at the photoanode in the DSSC device.

scholarly journals Three-dimensional graphene networks and reduced graphene oxide nanosheets co-modified dye-sensitized solar cells

RSC Advances ◽  
2017 ◽  
Vol 7 (72) ◽  
pp. 45280-45286 ◽  
Author(s):  
Bo Tang ◽  
Guojian Ji ◽  
Zhengwei Wang ◽  
Haiqun Chen ◽  
Xufei Li ◽  
...  
Keyword(s):  
Graphene Oxide ◽  
Solar Cells ◽  
Reduced Graphene Oxide ◽  
Dye Sensitized Solar Cells ◽  
Three Dimensional ◽  
Graphene Oxide Nanosheets ◽  
Dye Sensitized ◽  
Reduced Graphene ◽  
Sensitized Solar Cells

Graphene assisted dye-sensitized solar cells (DSSCs) have drawn increasing attention because of their high performances.

Optimizing phthalocyanine based dye-sensitized solar cells: The role of reduced graphene oxide

2018 ◽  
Vol 246 ◽  
pp. 236-245 ◽  
Author(s):  
Francis Chindeka ◽  
Philani Mashazi ◽  
Jonathan Britton ◽  
Gertrude Fomo ◽  
David O. Oluwole ◽  
...  
Keyword(s):  
Graphene Oxide ◽  
Solar Cells ◽  
Reduced Graphene Oxide ◽  
Dye Sensitized Solar Cells ◽  
Dye Sensitized ◽  
Reduced Graphene ◽  
Sensitized Solar Cells

Moderately reduced graphene oxide as transparent counter electrodes for dye-sensitized solar cells

2012 ◽  
Vol 81 ◽  
pp. 301-307 ◽  
Author(s):  
Hye-Su Jang ◽  
Jin-Mun Yun ◽  
Dong-Yu Kim ◽  
Dong-Won Park ◽  
Seok-In Na ◽  
...  
Keyword(s):  
Graphene Oxide ◽  
Solar Cells ◽  
Reduced Graphene Oxide ◽  
Dye Sensitized Solar Cells ◽  
Counter Electrodes ◽  
Dye Sensitized ◽  
Reduced Graphene ◽  
Sensitized Solar Cells
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