Aqueous p-type dye-sensitized solar cells based on a tris(1,2-diaminoethane)cobalt(ii)/(iii) redox mediator

2016 ◽  
Vol 18 (24) ◽  
pp. 6659-6665 ◽  
Author(s):  
Wanchun Xiang ◽  
Joshua Marlow ◽  
Peter Bäuerle ◽  
Udo Bach ◽  
Leone Spiccia
Keyword(s):  
Solar Cells ◽  
Energy Conversion ◽  
Aqueous Electrolyte ◽  
Dye Sensitized Solar Cells ◽  
Redox Mediator ◽  
Simulated Sunlight ◽  
Dye Sensitized ◽  
P Type ◽  
Conversion Efficiencies ◽  
Sensitized Solar Cells

Using an aqueous electrolyte based on a tris(1,2-diaminoethane)cobalt(ii/iii) redox mediator in p-type dye-sensitized solar cells gives energy conversion efficiencies of up to 1.6% under AM 1.5 simulated sunlight.

Improvement of Photovoltage in Dye-Sensitized Solar Cells with Azobenzene and Azulene Sensitizing Dyes by Applying Br3-/Br- Redox Mediator

2013 ◽  
Vol 596 ◽  
pp. 35-39 ◽  
Author(s):  
Kenji Kakiage ◽  
Emi Fujimura ◽  
Yoshinori Nakada ◽  
Takashi Ogino ◽  
Toru Kyomen ◽  
...  
Keyword(s):  
Solar Cells ◽  
Dye Sensitized Solar Cells ◽  
Electric Energy ◽  
Open Circuit ◽  
Redox Mediator ◽  
Simulated Sunlight ◽  
Sunlight Irradiation ◽  
Dye Sensitized ◽  
Conversion Efficiencies ◽  
Sensitized Solar Cells

In dye-sensitized solar cells (DSSCs) fabricated with azobenzene and azulene derivatives as the photosensitizing dyes, the replacement of the conventional I3-/I-redox mediator with Br3-/Br-redox mediator possessing more positive redox potential has been examined to improve open-circuit photovoltages (Voc) of the cells. The cells with the Br3-/Br-redox mediator exhibited highVocof ~0.8 V, resulting in higher light-to-electric energy conversion efficiencies (η) than the cells with the I3-/I-redox mediator by a factor of 1.7 under the simulated sunlight irradiation (AM-1.5G, 100 mW cm-2). The results indicate a high potential of the Br3-/Br-redox mediator in DSSCs.

scholarly journals p-Type dye-sensitized solar cells based on pseudorotaxane mediated charge-transfer

2019 ◽  
Vol 215 ◽  
pp. 393-406 ◽  
Author(s):  
Tessel Bouwens ◽  
Simon Mathew ◽  
Joost N. H. Reek
Keyword(s):  
Solar Cells ◽  
Charge Transfer ◽  
Dye Sensitized Solar Cells ◽  
Redox Mediator ◽  
Dye Sensitized ◽  
Recognition Sites ◽  
P Type ◽  
Sensitized Solar Cells

We report the synthesis of dyes with recognition sites that facilitate pseudorotaxane formation and implementation into a p-type DSSC where the ring acts as a redox mediator.

A Novel Efficient, Iodide-Free Redox Mediator for Dye-Sensitized Solar Cells

2007 ◽  
Vol 1013 ◽  
Author(s):  
Zhipan Zhang ◽  
Peter. Chaoyu Chen ◽  
Shaik Mohammed Zakeeruddin ◽  
Jacques-Edouard Moser ◽  
Michael Grätzel
Keyword(s):  
Solar Cells ◽  
Dye Sensitized Solar Cells ◽  
Redox System ◽  
Redox Mediator ◽  
Nanocrystalline Tio2 ◽  
Dye Sensitized ◽  
Molecular Radical ◽  
Conversion Efficiencies ◽  
Sensitized Solar Cells ◽  
Organic Sensitizer

AbstractA stable organic molecular radical, 2,2,6,6-tetramethyl-1-piperidinyloxy (TEMPO), has been electrochemically studied and employed as a new redox mediator in nanocrystalline TiO2 dye-sensitized solar cells (DSCs) when it is doped with nitrosonium tetrafluoroborate (NOBF4). Reasonable photocurrents can be achieved despite of driving force of only 0.2 eV for the TEMPO/TEMPO+ system as compared to 0.6 eV for the iodide/triiodide redox system. Judicious selections of a 5 µm photoanode made from TiO2 mesoscopic particles (60 nm in diameter) and an organic sensitizer with high molar extinction coefficient yield an overall power conversion of 5.0 % under AM 1.5 illumination at 100 mW cm-2 and an incident photon-to-current conversion efficiencies (IPCE) in excess of 50 %.

Efficient Dye-Sensitized Solar Cells Using a Tetramethylthiourea Redox Mediator

ChemSusChem ◽  
2013 ◽  
Vol 6 (11) ◽  
pp. 2124-2131 ◽  
Author(s):  
Yeru Liu ◽  
James R. Jennings ◽  
Qing Wang
Keyword(s):  
Solar Cells ◽  
Dye Sensitized Solar Cells ◽  
Redox Mediator ◽  
Dye Sensitized ◽  
Sensitized Solar Cells

TiO2 cement for high-performance dye-sensitized solar cells

RSC Advances ◽  
2016 ◽  
Vol 6 (87) ◽  
pp. 83802-83807 ◽  
Author(s):  
Yu Hou ◽  
Shuang Yang ◽  
Chunzhong Li ◽  
Huijun Zhao ◽  
Hua Gui Yang
Keyword(s):  
Solar Cells ◽  
Energy Conversion ◽  
Conversion Efficiency ◽  
High Performance ◽  
Dye Sensitized Solar Cells ◽  
Energy Conversion Efficiency ◽  
Dye Sensitized ◽  
Degussa P25 ◽  
Sensitized Solar Cells

An energy conversion efficiency of 8.31% is reached by using a cemented photoanode for dye-sensitized solar cells, attaining a 31.1% improvement over the standard Degussa P25 sample.

Sign in / Sign up

Export Citation Format

Share Document