Single-molecule charge transfer dynamics in dye-sensitized p-type NiO solar cells: influences of insulating Al2O3layers

2012 ◽  
Vol 3 (2) ◽  
pp. 370-379 ◽  
Author(s):  
Zhenfeng Bian ◽  
Takashi Tachikawa ◽  
Shi-Cong Cui ◽  
Mamoru Fujitsuka ◽  
Tetsuro Majima
2018 ◽  
Vol 20 (11) ◽  
pp. 7710-7720 ◽  
Author(s):  
Iwona Grądzka ◽  
Mateusz Gierszewski ◽  
Jerzy Karolczak ◽  
Marcin Ziółek

Standard ruthenium components of dye-sensitized solar cells (sensitizer N719) and dye-sensitized photoelectrochemical cells (sensitizer RuP) are investigated to compare their photodynamics and charge separation efficiency.


2017 ◽  
Vol 48 (1) ◽  
pp. 74-84
Author(s):  
Danni Zhang ◽  
Jie Liu ◽  
Wangnan Li ◽  
Meihua Chen ◽  
Jingyang Wang ◽  
...  

Author(s):  
Elisabetta Benazzi ◽  
Gareth H. Summers ◽  
Fiona A. Black ◽  
Igor V. Sazanovich ◽  
Ian P. Clark ◽  
...  

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’.


2018 ◽  
Vol 122 (9) ◽  
pp. 5161-5170 ◽  
Author(s):  
Muhammad T. Sajjad ◽  
Jinhyung Park ◽  
Dorian Gaboriau ◽  
Jonathon R. Harwell ◽  
Fabrice Odobel ◽  
...  

2008 ◽  
Author(s):  
Laura K. Schirra ◽  
Michael L. Blumenfeld ◽  
Brandon S. Tackett ◽  
Jason M. Tyler ◽  
Oliver L. A. Monti

Sign in / Sign up

Export Citation Format

Share Document