Geometrical and energetical structural changes in organic dyes for dye-sensitized solar cells probed using photoelectron spectroscopy and DFT

2016 ◽  
Vol 18 (1) ◽  
pp. 252-260 ◽  
Author(s):  
Susanna K. Eriksson ◽  
Ida Josefsson ◽  
Hanna Ellis ◽  
Anna Amat ◽  
Mariachiara Pastore ◽  
...  

Differences in solar cell performance of triarylamine-based dyes are from calculations and PES measurements attributed to geometrical adsorption differences.

2017 ◽  
Vol 1 (6) ◽  
pp. 1059-1072 ◽  
Author(s):  
N. Prachumrak ◽  
T. Sudyoadsuk ◽  
A. Thangthong ◽  
P. Nalaoh ◽  
S. Jungsuttiwong ◽  
...  

Three new D–π–A dyes containing different numbers of triphenylamine donor substitutions on a π-linker were synthesized for dye-sensitized solar cells.


NANO ◽  
2014 ◽  
Vol 09 (05) ◽  
pp. 1440005 ◽  
Author(s):  
HAINING TIAN ◽  
ANDREA SOTO ◽  
BO XU ◽  
LICHENG SUN ◽  
ANDERS HAGFELDT ◽  
...  

The effect of metal-free chromophores on dye-sensitized solar cell performance is investigated. Solid state dye-sensitized solar cells (ssDSCs) using different molecular sensitizers based on triphenylamine (TPA) with thiophene linkers and different alkyl chain in the donor unit have been characterized using impedance spectroscopy (IS). We show that different molecular structures play a fundamental role on solar cell performance, by the effect produced on TiO 2 conduction band position and in the recombination rate. Dye structure and its electronic properties are the main factors that control the recombination, the capacitance and the efficiency of the cells. A clear trend between the performance of the cell and the optimization level of the blocking effect of the dye structure has been identified in the solid state solar cells with Spiro-OMeTAD hole conductor.


2015 ◽  
Vol 3 (8) ◽  
pp. 4659-4668 ◽  
Author(s):  
Hua Dong ◽  
Zhaoxin Wu ◽  
Ahmed El-Shafei ◽  
Bin Xia ◽  
Jun Xi ◽  
...  

In this article, Ag-encapsulated Au nanorods (Au@Ag NRs) are prepared and introduced into dye-sensitized solar cells (DSSCs).


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