Bifunctional NaYF4:Er3+/Yb3+ submicron rods, implemented in quantum dot sensitized solar cell
(Conference Presentation)

J. Pablo Guerrero; Andrea Cerdán Pasarán; Tzarara López-Luke; D. Ramachari; Diego Esparza; Elder De la Rosa Cruz; Victor Hugo Romero Arellano

doi:10.1117/12.2237073

2 November 2016 Bifunctional NaYF₄:Er³⁺/Yb³⁺ submicron rods, implemented in quantum dot sensitized solar cell(Conference Presentation)

J. Pablo Guerrero, Andrea Cerdán Pasarán, Tzarara López-Luke, D. Ramachari, Diego Esparza, Elder De la Rosa Cruz, Victor Hugo Romero Arellano

Author Affiliations +

Proceedings Volume 9936, Thin Films for Solar and Energy Technology VIII; 993606 (2016) https://doi.org/10.1117/12.2237073
Event: SPIE Optics + Photonics for Sustainable Energy, 2016, San Diego, California, United States

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.

Conference Presentation

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J. Pablo Guerrero, Andrea Cerdán Pasarán, Tzarara López-Luke, D. Ramachari, Diego Esparza, Elder De la Rosa Cruz, and Victor Hugo Romero Arellano "Bifunctional NaYF₄:Er³⁺/Yb³⁺ submicron rods, implemented in quantum dot sensitized solar cell(Conference Presentation)", Proc. SPIE 9936, Thin Films for Solar and Energy Technology VIII, 993606 (2 November 2016); https://doi.org/10.1117/12.2237073

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KEYWORDS

Quantum dots

Solar cells

Scattering

Absorption

Cadmium

Cadmium sulfide

Infrared radiation

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