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.

scholarly journals Assembly, charge-transfer and solar cell performance with porphyrin-C 60 on NiO for p-type dye-sensitized solar cells

2019 ◽  
Vol 377 (2152) ◽  
pp. 20180338 ◽  
Author(s):  
Elisabetta Benazzi ◽  
Gareth H. Summers ◽  
Fiona A. Black ◽  
Igor V. Sazanovich ◽  
Ian P. Clark ◽  
...  
Keyword(s):  
Solar Cells ◽  
Charge Transfer ◽  
Dye Sensitized Solar Cells ◽  
Acid Methyl Ester ◽  
Low Carbon ◽  
Adsorption Behaviour ◽  
Solar Cell Performance ◽  
Dye Sensitized ◽  
P Type ◽  
Sensitized Solar Cells

A series of zinc tetraphenylporphyrin photosensitizers furnished with three different anchoring groups, benzoic acid, phenylphosphonate and coumarin-3-carboxylic acid, were prepared using ‘click’ methodology. All three gave modest performances in liquid junction devices with I 3 – /I – as the electrolyte. The distinct spectroscopic properties of the porphyrins allowed a detailed investigation of the adsorption behaviour and kinetics for charge transfer at the NiO|porphyrin interface. The adsorption behaviour was modelled using the Langmuir isotherm model and the phosphonate anchoring group was found to have the highest affinity for NiO (6.65 × 10 4  M −1 ) and the fastest rate of adsorption (2.46 × 10 7  cm 2  mol −1  min −1 ). The photocurrent of the p-type dye-sensitized solar cells increased with increasing dye loading and corresponding light harvesting efficiency of the electrodes. Coordinating the zinc to a pyridyl-functionalized fullerene ( C 60 PPy ) extended the charge-separated state lifetime from ca 200 ps to 4 ns and a positive improvement in the absorbed photon to current conversion efficiency was observed. Finally, we confirmed the viability of electron transfer from the appended C 60 PPy to phenyl-C61-butyric acid methyl ester, a typical electron transporting layer in organic photovoltaics. This has implications for assembling efficient solid-state tandem solar cells in the future. This article is part of a discussion meeting issue ‘Energy materials for a low carbon future’.

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.

Carbon nanotube-carbon black hybrid counter electrodes for dye-sensitized solar cells and the effect on charge transfer kinetics

2021 ◽  
Author(s):  
Christian Abel Cruz-Gutiérrez ◽  
Rosa María Félix-Navarro ◽  
Julio Cesar Calva-Yañez ◽  
Carolina Silva-Carrillo ◽  
Shu Wai Lin-Ho ◽  
...  
Keyword(s):  
Solar Cells ◽  
Charge Transfer ◽  
Carbon Nanotube ◽  
Carbon Black ◽  
Dye Sensitized Solar Cells ◽  
Counter Electrodes ◽  
Dye Sensitized ◽  
Sensitized Solar Cells

scholarly journals High efficiency dye-sensitized solar cells with VOC–JSC trade off eradication by interfacial engineering of the photoanode|electrolyte interface

RSC Advances ◽  
2019 ◽  
Vol 9 (69) ◽  
pp. 40292-40300
Author(s):  
Anantharaj Gopalraman ◽  
Subbian Karuppuchamy ◽  
Saranyan Vijayaraghavan
Keyword(s):  
Solar Cells ◽  
Charge Transfer ◽  
High Efficiency ◽  
Dye Sensitized Solar Cells ◽  
Surface States ◽  
Trade Off ◽  
Interfacial Engineering ◽  
Dye Sensitized ◽  
Electrolyte Interface ◽  
Sensitized Solar Cells

VOC–JSC trade off is eliminated. Newly created surface states by OA in TiO2 facilitated the charge transfer kinetics.

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
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