scholarly journals Power Conversion Efficiency of Arylamine Organic Dyes for Dye-Sensitized Solar Cells (DSSCs) Explicit to Cobalt Electrolyte: Understanding the Structural Attributes Using a Direct QSPR Approach

Computation ◽  
2016 ◽  
Vol 5 (4) ◽  
pp. 2 ◽  
Author(s):  
Supratik Kar ◽  
Juganta Roy ◽  
Danuta Leszczynska ◽  
Jerzy Leszczynski
RSC Advances ◽  
2015 ◽  
Vol 5 (57) ◽  
pp. 46206-46209 ◽  
Author(s):  
Li-Peng Zhang ◽  
Ke-Jian Jiang ◽  
Qiang Chen ◽  
Gang Li ◽  
Lian-Ming Yang

Two novel donor–acceptor organic dyes (PPL-1 and PPL-2) with pyrazino-[2,3-f][1,10]phenanthroline as an electron-withdrawing anchoring group displayed a promising power conversion efficiency of 4.04% under standard AM 1.5 conditions.


2017 ◽  
Vol 19 (42) ◽  
pp. 28579-28587 ◽  
Author(s):  
Mohammad Adil Afroz ◽  
Keval K. Sonigara ◽  
Telugu Bhim Raju ◽  
Saurabh S. Soni ◽  
Parameswar Krishnan Iyer

The study on specific positions of fluorine substitution on phenylene spacer in organic dyes illustrated that ortho-substitution resulted in the improved power conversion efficiency of >4%.


2015 ◽  
Vol 3 (6) ◽  
pp. 3103-3112 ◽  
Author(s):  
Yong Hua ◽  
Jian He ◽  
Caishun Zhang ◽  
Chunjiang Qin ◽  
Liyuan Han ◽  
...  

A series of thiadiazolo[3,4-c]pyridine-cored organic sensitizers has been prepared for DSSC applications. The structural optimization with π-conjugated spacers enhanced the power conversion efficiency to 6.30% from 2.86%.


2021 ◽  
Vol 11 (3) ◽  
pp. 674-678
Author(s):  
Shibing Zou ◽  
Lingting Song ◽  
Junhong Duan ◽  
Le Huang ◽  
Weiqing Liu ◽  
...  

2015 ◽  
Vol 19 (01-03) ◽  
pp. 175-191 ◽  
Author(s):  
Ganesh D. Sharma ◽  
Galateia E. Zervaki ◽  
Kalliopi Ladomenou ◽  
Emmanuel N. Koukaras ◽  
Panagiotis P. Angaridis ◽  
...  

Two porphyrin dyads with the donor-π-acceptor molecular architecture, namely ( ZnP )-[triazine-gly]-( H 2 PCOOH ) and ( ZnP )-[triazine-Npip]-( H 2 PCOOH ), which consist of a zinc-metalated porphyrin unit and a free-base porphyrin unit covalently linked at their peripheries to a central triazine group, substituted either by a glycine in the former or a N-piperidine group in the latter, have been synthesized via consecutive amination substitution reactions of cyanuric chloride. The UV-vis absorption spectra and cyclic-voltammetry measurements of the two dyads, as well as theoretical calculations based on Density Functional Theory, suggest that they have suitable frontier orbital energy levels for use as sensitizers in dye-sensitized solar cells. Dye-sensitized solar cells based on ( ZnP )-[triazine-gly]-( H 2 PCOOH ) and ( ZnP )-[triazine-Npip]-( H 2 PCOOH ) have been fabricated, and they were found to exhibit power conversion efficiency values of 5.44 and 4.15%, respectively. Photovoltaic measurements (J–V curves) and incident photon to current conversion efficiency spectra of the two solar cells suggest that the higher power conversion efficiency value of the former solar cell is a result of its enhanced short circuit current, open circuit voltage, and fill factor values, as well as higher dye loading. This is ascribed to the existence of two carboxylic acid anchoring groups in ( ZnP )-[triazine-gly]-( H 2 PCOOH ), compared to one carboxylic acid group in ( ZnP )-[triazine-Npip]-( H 2 PCOOH ), which leads to a more effective binding onto the TiO 2 photoanode. Electrochemical impedance spectra show evidence that the ( ZnP )-[triazine-gly]-( H 2 PCOOH ) based solar cell exhibits a longer electron lifetime and more effective suppression of charge recombination reactions between the injected electrons and electrolyte.


Solar Energy ◽  
2018 ◽  
Vol 176 ◽  
pp. 320-324 ◽  
Author(s):  
Junjie Xie ◽  
Huihui Yuan ◽  
Wei Wang ◽  
Di Xu ◽  
Xinyu Chen ◽  
...  

RSC Advances ◽  
2016 ◽  
Vol 6 (84) ◽  
pp. 81184-81190 ◽  
Author(s):  
Qingbiao Qi ◽  
Jing Zhang ◽  
Soumyajit Das ◽  
Wangdong Zeng ◽  
Jie Luo ◽  
...  

Three push–pull type, alkoxy-wrapped N-annulated perylene based sensitizers were synthesized and power conversion efficiency up to 8.38% was achieved.


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