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Wrinkled silica/titania nanoparticles with tunable interwrinkle distances for efficient utilization of photons in dye-sensitized solar cells

Efficient light harvesting is essential for the realization of high energy conversion efficiency in dye-sensitized solar cells (DSCs). State-of-the-art mesoporous TiO(2) photoanodes fall short for collection of long-wavelength visible light photons, and thus there have been efforts on introduction o...

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Autores principales: Kang, Jin Soo, Lim, Joohyun, Rho, Won-Yeop, Kim, Jin, Moon, Doo-Sik, Jeong, Juwon, Jung, Dongwook, Choi, Jung-Woo, Lee, Jin-Kyu, Sung, Yung-Eun
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Nature Publishing Group 2016
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4973230/
https://www.ncbi.nlm.nih.gov/pubmed/27488465
http://dx.doi.org/10.1038/srep30829
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author Kang, Jin Soo
Lim, Joohyun
Rho, Won-Yeop
Kim, Jin
Moon, Doo-Sik
Jeong, Juwon
Jung, Dongwook
Choi, Jung-Woo
Lee, Jin-Kyu
Sung, Yung-Eun
author_facet Kang, Jin Soo
Lim, Joohyun
Rho, Won-Yeop
Kim, Jin
Moon, Doo-Sik
Jeong, Juwon
Jung, Dongwook
Choi, Jung-Woo
Lee, Jin-Kyu
Sung, Yung-Eun
author_sort Kang, Jin Soo
collection PubMed
description Efficient light harvesting is essential for the realization of high energy conversion efficiency in dye-sensitized solar cells (DSCs). State-of-the-art mesoporous TiO(2) photoanodes fall short for collection of long-wavelength visible light photons, and thus there have been efforts on introduction of scattering nanoparticles. Herein, we report the synthesis of wrinkled silica/titania nanoparticles with tunable interwrinkle distances as scattering materials for enhanced light harvesting in DSCs. These particles with more than 20 times larger specific surface area (>400 m(2)/g) compared to the spherical scattering particles (<20 m(2)/g) of the similar sizes gave rise to the dye-loading amounts, causing significant improvements in photocurrent density and efficiency. Moreover, dependence of spectral scattering properties of wrinkled particles on interwrinkle distances, which was originated from difference in overall refractive indices, was observed.
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spelling pubmed-49732302016-08-11 Wrinkled silica/titania nanoparticles with tunable interwrinkle distances for efficient utilization of photons in dye-sensitized solar cells Kang, Jin Soo Lim, Joohyun Rho, Won-Yeop Kim, Jin Moon, Doo-Sik Jeong, Juwon Jung, Dongwook Choi, Jung-Woo Lee, Jin-Kyu Sung, Yung-Eun Sci Rep Article Efficient light harvesting is essential for the realization of high energy conversion efficiency in dye-sensitized solar cells (DSCs). State-of-the-art mesoporous TiO(2) photoanodes fall short for collection of long-wavelength visible light photons, and thus there have been efforts on introduction of scattering nanoparticles. Herein, we report the synthesis of wrinkled silica/titania nanoparticles with tunable interwrinkle distances as scattering materials for enhanced light harvesting in DSCs. These particles with more than 20 times larger specific surface area (>400 m(2)/g) compared to the spherical scattering particles (<20 m(2)/g) of the similar sizes gave rise to the dye-loading amounts, causing significant improvements in photocurrent density and efficiency. Moreover, dependence of spectral scattering properties of wrinkled particles on interwrinkle distances, which was originated from difference in overall refractive indices, was observed. Nature Publishing Group 2016-08-04 /pmc/articles/PMC4973230/ /pubmed/27488465 http://dx.doi.org/10.1038/srep30829 Text en Copyright © 2016, The Author(s) http://creativecommons.org/licenses/by/4.0/ This work is licensed under a Creative Commons Attribution 4.0 International License. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in the credit line; if the material is not included under the Creative Commons license, users will need to obtain permission from the license holder to reproduce the material. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/
spellingShingle Article
Kang, Jin Soo
Lim, Joohyun
Rho, Won-Yeop
Kim, Jin
Moon, Doo-Sik
Jeong, Juwon
Jung, Dongwook
Choi, Jung-Woo
Lee, Jin-Kyu
Sung, Yung-Eun
Wrinkled silica/titania nanoparticles with tunable interwrinkle distances for efficient utilization of photons in dye-sensitized solar cells
title Wrinkled silica/titania nanoparticles with tunable interwrinkle distances for efficient utilization of photons in dye-sensitized solar cells
title_full Wrinkled silica/titania nanoparticles with tunable interwrinkle distances for efficient utilization of photons in dye-sensitized solar cells
title_fullStr Wrinkled silica/titania nanoparticles with tunable interwrinkle distances for efficient utilization of photons in dye-sensitized solar cells
title_full_unstemmed Wrinkled silica/titania nanoparticles with tunable interwrinkle distances for efficient utilization of photons in dye-sensitized solar cells
title_short Wrinkled silica/titania nanoparticles with tunable interwrinkle distances for efficient utilization of photons in dye-sensitized solar cells
title_sort wrinkled silica/titania nanoparticles with tunable interwrinkle distances for efficient utilization of photons in dye-sensitized solar cells
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4973230/
https://www.ncbi.nlm.nih.gov/pubmed/27488465
http://dx.doi.org/10.1038/srep30829
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