Red-emitting Ca 1-xSr xS:Eu 2+ phosphors as light converters for plant-growth applications

Conference contribution
(Conference Contribution)


Publication Details

Author(s): Xia Q, Batentschuk M, Osvet A, Richter P, Häder DP, Schneider J, Wondraczek L, Winnacker A, Brabec C
Publication year: 2012
Volume: 1342
Conference Proceedings Title: 2011 MRS Spring Meeting
Pages range: 67-72
ISBN: 9781605113197
ISSN: 02729172
Language: English


Abstract


A series of Ca Sr S:Eu phosphors were synthesized with solid state reactions and with various Ca/Sr ratio and Eu doping concentrations. The influences of the lattice composition and the Eu doping level on photoluminescent properties were analyzed. With doping concentrations between 0.1 to 3 mol%, concentration quenching takes place leading to the decrease of luminance; the emission maxima are also red-shifted. Further, this work reports enhanced photosynthetic activities of intact spinach leaves due to spectral modification of simulated solar irradiation by one synthesized phosphor (Ca Sr S:Eu ). The CO assimilation rates of intact spinach leaves were monitored with an effective homemade photosynthesis measurement system with controlled light conditions. The phosphor could efficiently convert the photosynthetically less active green part of the solar spectrum into the red, with a broad-band red emission centered at 650 nm and a halfband-width of 68 nm, giving an excellent match with the absorption spectrum of spinach chloroplasts. By careful referencing the photon flux, we found an enhanced photosynthetic activities by about 30% due to the emission of the phosphor. © 2011 Materials Research Society.



FAU Authors / FAU Editors

Batentschuk, Miroslaw PD Dr.-Ing.
Institute Materials for Electronics and Energy Technology (i-MEET)
Brabec, Christoph 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
Winnacker, Albrecht Prof. Dr.
Technische Fakultät
Wondraczek, Lothar Prof. Dr.-Ing.
Professur für Werkstoffwissenschaften (Glas und Keramik)
Xia, Qi
Graduiertenzentrum der FAU


External institutions with authors

Albert-Ludwigs-Universität Freiburg


How to cite

APA:
Xia, Q., Batentschuk, M., Osvet, A., Richter, P., Häder, D.-P., Schneider, J.,... Brabec, C. (2012). Red-emitting Ca 1-xSr xS:Eu 2+ phosphors as light converters for plant-growth applications. In 2011 MRS Spring Meeting (pp. 67-72). San Francisco, CA, US.

MLA:
Xia, Qi, et al. "Red-emitting Ca 1-xSr xS:Eu 2+ phosphors as light converters for plant-growth applications." Proceedings of the 2011 MRS Spring Meeting, San Francisco, CA 2012. 67-72.

BibTeX: 

Last updated on 2018-11-12 at 13:50