Picolinic acid as an efficient tridentate anchoring group adsorbing at Lewis acid sites and Brønsted acid sites of the TiO2 surface in dye-sensitized solar cells

2015 ◽  
Vol 3 (28) ◽  
pp. 14809-14816 ◽  
Author(s):  
Hai-Lang Jia ◽  
Ming-Dao Zhang ◽  
Ze-Min Ju ◽  
He-Gen Zheng ◽  
Xue-Hai Ju
Keyword(s):  
Solar Cells ◽  
Lewis Acid ◽  
Picolinic Acid ◽  
Dye Sensitized Solar Cells ◽  
Acid Sites ◽  
Tio2 Surface ◽  
Lewis Acid Sites ◽  
Dye Sensitized ◽  
Anchoring Group ◽  
Sensitized Solar Cells

Picolinic acid anchored dye JA2 onto TiO2via tridentate mode and the JA2 + TTR2 based-device showed the highest PCE of 8.98%.

A new cosensitization method using the Lewis acid sites of a TiO2 photoelectrode for dye-sensitized solar cells

2014 ◽  
Vol 50 (48) ◽  
pp. 6398-6401 ◽  
Author(s):  
Naoyuki Shibayama ◽  
Hironobu Ozawa ◽  
Masahiro Abe ◽  
Yousuke Ooyama ◽  
Hironori Arakawa
Keyword(s):  
Solar Cells ◽  
Competitive Adsorption ◽  
Selective Adsorption ◽  
Dye Sensitized Solar Cells ◽  
Acid Sites ◽  
Lewis Acid Sites ◽  
Dye Sensitized ◽  
Site Selective ◽  
First Time ◽  
Sensitized Solar Cells

Dye-sensitized solar cells co-sensitized with black dye and a pyridine-anchor dye showing site-selective adsorption behaviour at the TiO2 surface have been prepared for the first time to reduce competitive adsorption.

A Hydroxamic Acid Anchoring Group for Durable Dye-Sensitized Solar Cells Incorporating a Cobalt Redox Shuttle

ChemSusChem ◽  
2017 ◽  
Vol 10 (17) ◽  
pp. 3347-3351 ◽  
Author(s):  
Tomohiro Higashino ◽  
Yuma Kurumisawa ◽  
Ning Cai ◽  
Yamato Fujimori ◽  
Yukihiro Tsuji ◽  
...  
Keyword(s):  
Solar Cells ◽  
Hydroxamic Acid ◽  
Dye Sensitized Solar Cells ◽  
Dye Sensitized ◽  
Redox Shuttle ◽  
Anchoring Group ◽  
Sensitized Solar Cells

scholarly journals New Oxindole-Bridged Acceptors for Organic Sensitizers: Substitution and Performance Studies in Dye-Sensitized Solar Cells

Molecules ◽  
2020 ◽  
Vol 25 (9) ◽  
pp. 2159
Author(s):  
Yogesh S. Tingare ◽  
Chaochin Su ◽  
Ming-Tai Shen ◽  
Sheng-Han Tsai ◽  
Shih-Yu Ho ◽  
...  
Keyword(s):  
Solar Cells ◽  
Performance Studies ◽  
Dye Sensitized Solar Cells ◽  
Tio2 Surface ◽  
Carbonyl Groups ◽  
Dye Sensitized ◽  
Amide Carbonyl ◽  
And Performance ◽  
Sensitized Solar Cells ◽  
Organic Sensitizers

New D-π-A configured organic sensitizers featuring halogen-substituted oxindole-bridged acceptor units have been synthesized for dye-sensitized solar cells applications. Among fluorine, bromine, and iodine substitution, the cell based on bromine incorporated dye exhibited the highest efficiency. The oxindoles in these sensitizers were found to assist the electron injection through the chelation of their amide carbonyl groups to the TiO2 surface. This study provides an alternate approach for future rational dye design to gain excellent DSSC performance.

A new sterically hindered asymmetric zinc phthalocyanine as an efficient sensitizer for dye-sensitized solar cells

2021 ◽  
Author(s):  
Kevser Harmandar ◽  
Kevin Granados-Tavera ◽  
Merve Keskin ◽  
Mehmet Nebioğlu ◽  
İlkay Şişman ◽  
...  
Keyword(s):  
Solar Cells ◽  
Carboxylic Acid ◽  
Dye Sensitized Solar Cells ◽  
Zinc Phthalocyanine ◽  
Tert Butyl ◽  
Dye Sensitized ◽  
Anchoring Group ◽  
Sterically Hindered ◽  
Sensitized Solar Cells

An asymmetric zinc phthalocyanine dye (KH1) bearing three 2,6-di-tert-butyl-4-methylphenoxy donor groups and carboxylic acid anchoring group was synthesized as a sensitizer for dye-sensitized solar cells (DSSCs). The DSSC based on...

A2 and A2B2 Benzoporphyrins as sensitizers for dye-sensitized solar cells

2019 ◽  
Vol 23 (04n05) ◽  
pp. 599-610 ◽  
Author(s):  
Siddhartha Kumar ◽  
Whitney Webre ◽  
Jacob Schaffner ◽  
Sheikh M. S. Islam ◽  
Francis D’Souza ◽  
...  
Keyword(s):  
Solar Cells ◽  
Solar Cell ◽  
Dye Sensitized Solar Cells ◽  
Acid Group ◽  
Dye Sensitized ◽  
Dye Loading ◽  
Two Factors ◽  
Homo And Lumo ◽  
Anchoring Group ◽  
Sensitized Solar Cells

The first example of A2B2 tetrabenzoporphyrin (KW-4) was synthesized, characterized and evaluated as a sensitizer for dye-sensitized solar cells. UV-vis and fluorescence spectroscopy revealed red-shifted and broadened absorption spectra of A2B2 tetrabenzoporphyrin as compared with its A2 dibenzo- and A2B2 dibenzoporphyrin analogues, which is a desired feature of dyes for dye-sensitized solar cells. DFT calculations also indicate favorable electron density distribution on the HOMO and LUMO of KW-4. However, the power conversion efficiency of the solar cell based on tetrabenzoporphyrin KW-4 displayed inferior performance than that of the solar cell based on A2 dibenzoporphyrin KW-2. The lower performance of the KW-4 cell was ascribed to two factors: the low lying LUMO energy level leading to less efficient electron injection and the “flat geometry” of the dye on TiO2surface facilitating charge recombination and decreasing dye loading. The investigation of anchoring group effect suggests that the acrylic acid group is a better anchoring group than pentadienyl carboxylic acid.

Increased Efficiency of Dye-Sensitized Solar Cells by Incorporation of a π Spacer in Donor-Acceptor Zinc Porphyrins Bearing Cyanoacrylic Acid as an Anchoring Group

2018 ◽  
Vol 2018 (20-21) ◽  
pp. 2369-2379 ◽  
Author(s):  
Stylianos Panagiotakis ◽  
Emmanouil Giannoudis ◽  
Asterios Charisiadis ◽  
Raphaella Paravatou ◽  
Maria-Eleni Lazaridi ◽  
...  
Keyword(s):  
Solar Cells ◽  
Dye Sensitized Solar Cells ◽  
Dye Sensitized ◽  
Cyanoacrylic Acid ◽  
Donor Acceptor ◽  
Anchoring Group ◽  
Zinc Porphyrins ◽  
Sensitized Solar Cells

Increasing the Oxygen Vacancy Density on the TiO2 Surface by La-Doping for Dye-Sensitized Solar Cells

2010 ◽  
Vol 114 (43) ◽  
pp. 18396-18400 ◽  
Author(s):  
Jiyuan Zhang ◽  
Zongyan Zhao ◽  
Xiangyan Wang ◽  
Tao Yu ◽  
Jie Guan ◽  
...  
Keyword(s):  
Solar Cells ◽  
Oxygen Vacancy ◽  
Dye Sensitized Solar Cells ◽  
Tio2 Surface ◽  
La Doping ◽  
Dye Sensitized ◽  
Sensitized Solar Cells ◽  
Vacancy Density
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