Photoactive Layer of DSSCS Based on Natural Dyes: A Study of Experiment and Theory

Photoactive Layer of DSSCS Based on Natural Dyes: A Study of Experiment and Theory

Three natural dyes (Forsythia suspensa, Herba Violae, and Corn leaf) have been investigated as potential sensitizers for dye-sensitized solar cells. UV-vis absorption spectra reveal that three natural dyes mainly contain the compound of pheophytin a. Among three DSSCs, the highest photo electronic c...

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Main Authors: Yuanzuo Li, Huixing Li, Peng Song, Chaofan Sun
Format: Article
Language:English
Published: Hindawi Limited 2015-01-01
Series:Journal of Nanomaterials
Online Access:http://dx.doi.org/10.1155/2015/139382
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spelling doaj-a42287c4b2fb42d18ae9ed663726b0852020-11-24T23:57:18ZengHindawi LimitedJournal of Nanomaterials1687-41101687-41292015-01-01201510.1155/2015/139382139382Photoactive Layer of DSSCS Based on Natural Dyes: A Study of Experiment and TheoryYuanzuo Li0Huixing Li1Peng Song2Chaofan Sun3College of Science, Northeast Forestry University, Harbin, Heilongjiang 150040, ChinaSchool of Physics and Optoelectronic Technology, Dalian University of Technology, Dalian 116024, ChinaDepartment of Physics, Liaoning University, Shenyang, Liaoning 110036, ChinaCollege of Science, Northeast Forestry University, Harbin, Heilongjiang 150040, ChinaThree natural dyes (Forsythia suspensa, Herba Violae, and Corn leaf) have been investigated as potential sensitizers for dye-sensitized solar cells. UV-vis absorption spectra reveal that three natural dyes mainly contain the compound of pheophytin a. Among three DSSCs, the highest photo electronic conversion efficiency η is 0.96% with open circuit voltage (VOC) of 0.66 V, short circuit current density (ISC ) of 1.97 mA cm−2, and fill factor (ff) of 0.74. Theoretical time-dependent density functional theory and charge difference density are used to explore the nature of excited states. Results demonstrate that the first state is an intramolecular charge transfer (ICT) state, and electron injection could occur owing to the thermodynamically driving force.http://dx.doi.org/10.1155/2015/139382
collection DOAJ
language English
format Article
sources DOAJ
author Yuanzuo Li
Huixing Li
Peng Song
Chaofan Sun
spellingShingle Yuanzuo Li
Huixing Li
Peng Song
Chaofan Sun
Photoactive Layer of DSSCS Based on Natural Dyes: A Study of Experiment and Theory
Journal of Nanomaterials
author_facet Yuanzuo Li
Huixing Li
Peng Song
Chaofan Sun
author_sort Yuanzuo Li
title Photoactive Layer of DSSCS Based on Natural Dyes: A Study of Experiment and Theory
title_short Photoactive Layer of DSSCS Based on Natural Dyes: A Study of Experiment and Theory
title_full Photoactive Layer of DSSCS Based on Natural Dyes: A Study of Experiment and Theory
title_fullStr Photoactive Layer of DSSCS Based on Natural Dyes: A Study of Experiment and Theory
title_full_unstemmed Photoactive Layer of DSSCS Based on Natural Dyes: A Study of Experiment and Theory
title_sort photoactive layer of dsscs based on natural dyes: a study of experiment and theory
publisher Hindawi Limited
series Journal of Nanomaterials
issn 1687-4110
1687-4129
publishDate 2015-01-01
description Three natural dyes (Forsythia suspensa, Herba Violae, and Corn leaf) have been investigated as potential sensitizers for dye-sensitized solar cells. UV-vis absorption spectra reveal that three natural dyes mainly contain the compound of pheophytin a. Among three DSSCs, the highest photo electronic conversion efficiency η is 0.96% with open circuit voltage (VOC) of 0.66 V, short circuit current density (ISC ) of 1.97 mA cm−2, and fill factor (ff) of 0.74. Theoretical time-dependent density functional theory and charge difference density are used to explore the nature of excited states. Results demonstrate that the first state is an intramolecular charge transfer (ICT) state, and electron injection could occur owing to the thermodynamically driving force.
url http://dx.doi.org/10.1155/2015/139382
work_keys_str_mv AT yuanzuoli photoactivelayerofdsscsbasedonnaturaldyesastudyofexperimentandtheory
AT huixingli photoactivelayerofdsscsbasedonnaturaldyesastudyofexperimentandtheory
AT pengsong photoactivelayerofdsscsbasedonnaturaldyesastudyofexperimentandtheory
AT chaofansun photoactivelayerofdsscsbasedonnaturaldyesastudyofexperimentandtheory
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