Enhanced photosynthetic activity in Spinacia oleracea by spectral modification with a photoluminescent light converting material

Journal article
(Original article)


Publication Details

Author(s): Xia Q, Batentschuk M, Osvet A, Richter P, Häder DP, Schneider J, Brabec C, Wondraczek L, Winnacker A
Journal: Optics Express
Publisher: Optical Society of American (OSA)
Publication year: 2013
Volume: 21
Journal issue: S5
Pages range: A909-A916
ISSN: 1094-4087
Language: English


Abstract


The spectral conversion of incident sunlight by appropriate photoluminescent materials has been a widely studied issue for improving the efficiency of photovoltaic solar energy harvesting. By using phosphors with suitable excitation/emission properties, also the light conditions for plants can be adjusted to match the absorption spectra of chlorophyll dyes, in this way increasing the photosynthetic activity of the plant. Here, we report on the application of this principle to a high plant, Spinacia oleracea. We employ a calcium strontium sulfide phosphor doped with divalent europium (Ca0.4Sr0.6S:Eu2+, CSSE) on a backlight conversion foil in photosynthesis experiments. We show that this phosphor can be used to effectively convert green to red light, centering at a wavelength of ~650 nm which overlaps the absorption peaks of chlorophyll a/b pigments. A measurement system was developed to monitor the photosynthetic activity, expressed as the CO2 assimilation rate of spinach leaves under various controlled light conditions. Results show that under identical external light supply which is rich in green photons, the CO2 assimilation rate can be enhanced by more than 25% when the actinic light is modified by the CSSE conversion foil as compared to a purely reflecting reference foil. These results show that the phosphor could be potentially applied to modify the solar spectrum by converting the green photons into photosynthetically active red photons for improved photosynthetic activity. © 2013 Optical Society of America.


FAU Authors / FAU Editors

Batentschuk, Miroslaw PD Dr.-Ing.
Institute Materials for Electronics and Energy Technology (i-MEET)
Brabec, Christoph Prof. Dr.
Winnacker, Albrecht Prof. Dr.
Institute Materials for Electronics and Energy Technology (i-MEET)
Häder, Donat-Peter Prof. Dr.
Naturwissenschaftliche Fakultät
Osvet, Andres Dr.
Institute Materials for Electronics and Energy Technology (i-MEET)
Richter, Peter Dr.
Lehrstuhl für Zellbiologie
Technische Fakultät
Xia, Qi
Graduiertenzentrum der FAU


Additional Organisation
Exzellenz-Cluster Engineering of Advanced Materials


External institutions with authors

Albert-Ludwigs-Universität Freiburg
Friedrich-Schiller-Universität Jena


Research Fields

B Nanoelectronic Materials
Exzellenz-Cluster Engineering of Advanced Materials
Neue Materialien und Prozesse
Research focus area of a faculty: Technische Fakultät


How to cite

APA:
Xia, Q., Batentschuk, M., Osvet, A., Richter, P., Häder, D.-P., Schneider, J.,... Winnacker, A. (2013). Enhanced photosynthetic activity in Spinacia oleracea by spectral modification with a photoluminescent light converting material. Optics Express, 21(S5), A909-A916. https://dx.doi.org/10.1364/OE.21.00A909

MLA:
Xia, Qi, et al. "Enhanced photosynthetic activity in Spinacia oleracea by spectral modification with a photoluminescent light converting material." Optics Express 21.S5 (2013): A909-A916.

BibTeX: 

Last updated on 2019-14-03 at 09:53