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Proceedings Paper

Bifunctional NaYF4:Er3+/Yb3+ submicron rods, implemented in quantum dot sensitized solar cell (Conference Presentation)
Author(s): J. Pablo Guerrero; Andrea Cerdán Pasarán; Tzarara López-Luke; D. Ramachari; Diego Esparza; Elder De la Rosa Cruz; Victor Hugo Romero Arellano
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Paper Abstract

In this work are presented the results obtained with solar cells sensitized with quantum dots of cadmium sulphide (CdS) incorporating luminescent materials (NaYF4:Yb/Er). The study revealed that through using a bifunctional layer of NaYF4:Yb/Er submicron rods, the infrared radiation is absorbed in 980nm to generate luminescence in the visible region to 530nm, under the UP-conversion process, in the same way simultaneously, NaYF4:Yb/Er layer causes scattering toward the quantum dots, the emission and scattering generated by this material is reabsorbed by the QD-CdS, and these in turn are absorbing in its range of solar radiation absorption, Thus generates an increase in the electron injection into the semiconductor of TiO2. The results of a cell incorporating NaYF4: Yb/Er at 0.07M shown photoconversion efficiencies of 3.39% improving efficiency with respect to the reference solar cell without using NaYF4: Yb/Er of 1.99%. The obtained values of current and voltage showed a strong dependence of the percentage of NaYF4 Yb/Er, and the mechanism of incorporation of this material.

Paper Details

Date Published: 2 November 2016
PDF: 1 pages
Proc. SPIE 9936, Thin Films for Solar and Energy Technology VIII, 993606 (2 November 2016); doi: 10.1117/12.2237073
Show Author Affiliations
J. Pablo Guerrero, Univ. de Guadalajara (Mexico)
Andrea Cerdán Pasarán, Ctr. de Investigaciones en Óptica, A.C. (Mexico)
Tzarara López-Luke, Ctr. de Investigaciones en Óptica, A.C. (Mexico)
D. Ramachari, Ctr. de Investigaciones en Óptica, A.C. (Mexico)
Diego Esparza, Ctr. de Investigaciones en Óptica, A.C. (Mexico)
Elder De la Rosa Cruz, Ctr. de Investigaciones en Óptica, A.C. (Mexico)
Victor Hugo Romero Arellano, Univ. de Guadalajara (Mexico)

Published in SPIE Proceedings Vol. 9936:
Thin Films for Solar and Energy Technology VIII
Michael J. Heben; Mowafak M. Al-Jassim, Editor(s)

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