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Numbers of cyanovinyl substitutes and their effect on phenothiazine based organic dyes for dye-sensitized solar cells
A series of phenothiazine based dyes (OMS1–3), comprising different conjugation lengths and numbers of electron deficient (cyanovinyl) moieties with cyanoacrylic acid as an anchor, have been synthesized. The dyes display broad UV-visible absorption, from 389 nm to 484 nm. The higher molar extinction...
Autores principales: | , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
The Royal Society of Chemistry
2018
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9078743/ https://www.ncbi.nlm.nih.gov/pubmed/35540859 http://dx.doi.org/10.1039/c7ra13751f |
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author | Chen, Yung-Chung Kuo, Yuan-Tsung Liang, Chia-Jung |
author_facet | Chen, Yung-Chung Kuo, Yuan-Tsung Liang, Chia-Jung |
author_sort | Chen, Yung-Chung |
collection | PubMed |
description | A series of phenothiazine based dyes (OMS1–3), comprising different conjugation lengths and numbers of electron deficient (cyanovinyl) moieties with cyanoacrylic acid as an anchor, have been synthesized. The dyes display broad UV-visible absorption, from 389 nm to 484 nm. The higher molar extinction coefficient and longer absorption peak are achieved as the conjugation length and numbers of electron deficient units increase. The cell performance based on these dyes exhibits efficiencies ranging from 0.68–4.00%, compared to a standard N719-based device (PCE = 7.49%) fabricated under similar conditions. Although the OMS3 dye has two electron deficient units between phenothiazine units, an insignificant electron trapping effect is observed. From the results, the OMS3 based cell exhibits the highest short circuit current (J(SC)) at 8.72 mA cm(−2) and the highest open-circuit voltage (V(OC)) at 0.66 V, together with the best cell performance at 4.00%. |
format | Online Article Text |
id | pubmed-9078743 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2018 |
publisher | The Royal Society of Chemistry |
record_format | MEDLINE/PubMed |
spelling | pubmed-90787432022-05-09 Numbers of cyanovinyl substitutes and their effect on phenothiazine based organic dyes for dye-sensitized solar cells Chen, Yung-Chung Kuo, Yuan-Tsung Liang, Chia-Jung RSC Adv Chemistry A series of phenothiazine based dyes (OMS1–3), comprising different conjugation lengths and numbers of electron deficient (cyanovinyl) moieties with cyanoacrylic acid as an anchor, have been synthesized. The dyes display broad UV-visible absorption, from 389 nm to 484 nm. The higher molar extinction coefficient and longer absorption peak are achieved as the conjugation length and numbers of electron deficient units increase. The cell performance based on these dyes exhibits efficiencies ranging from 0.68–4.00%, compared to a standard N719-based device (PCE = 7.49%) fabricated under similar conditions. Although the OMS3 dye has two electron deficient units between phenothiazine units, an insignificant electron trapping effect is observed. From the results, the OMS3 based cell exhibits the highest short circuit current (J(SC)) at 8.72 mA cm(−2) and the highest open-circuit voltage (V(OC)) at 0.66 V, together with the best cell performance at 4.00%. The Royal Society of Chemistry 2018-03-09 /pmc/articles/PMC9078743/ /pubmed/35540859 http://dx.doi.org/10.1039/c7ra13751f Text en This journal is © The Royal Society of Chemistry https://creativecommons.org/licenses/by/3.0/ |
spellingShingle | Chemistry Chen, Yung-Chung Kuo, Yuan-Tsung Liang, Chia-Jung Numbers of cyanovinyl substitutes and their effect on phenothiazine based organic dyes for dye-sensitized solar cells |
title | Numbers of cyanovinyl substitutes and their effect on phenothiazine based organic dyes for dye-sensitized solar cells |
title_full | Numbers of cyanovinyl substitutes and their effect on phenothiazine based organic dyes for dye-sensitized solar cells |
title_fullStr | Numbers of cyanovinyl substitutes and their effect on phenothiazine based organic dyes for dye-sensitized solar cells |
title_full_unstemmed | Numbers of cyanovinyl substitutes and their effect on phenothiazine based organic dyes for dye-sensitized solar cells |
title_short | Numbers of cyanovinyl substitutes and their effect on phenothiazine based organic dyes for dye-sensitized solar cells |
title_sort | numbers of cyanovinyl substitutes and their effect on phenothiazine based organic dyes for dye-sensitized solar cells |
topic | Chemistry |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9078743/ https://www.ncbi.nlm.nih.gov/pubmed/35540859 http://dx.doi.org/10.1039/c7ra13751f |
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