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Study of upconversion in lanthanide-doped glasses for solar cells application

Grant number: 19/25756-7
Support type:Scholarships in Brazil - Post-Doctorate
Effective date (Start): March 01, 2020
Effective date (End): February 28, 2021
Field of knowledge:Physical Sciences and Mathematics - Chemistry - Inorganic Chemistry
Principal researcher:Younes Messaddeq
Grantee:Jeferson Almeida Dias
Home Institution: Instituto de Química (IQ). Universidade Estadual Paulista (UNESP). Campus de Araraquara. Araraquara , SP, Brazil
Associated research grant:15/22828-6 - Pushing the boundaries of optical fibers: from photonics to optogenetics and environmental monitoring, AP.SPEC


This project proposes to investigate the vitreous system SiO2-GeO2-(Al2O3, Nb2O5)-K2O co-doped with Yb3+: Er3+, Ce3+ and Nd3+. For photovoltaic device, the refractive index needs to be as low as possible to avoid high reflection on the glass surface, therefore, this parameter must be as low as possible. Moreover, the composition must be adjusted to allow high transparency and stability, with low cost. The use of lower-cost rare earths (Nd3+, Ce3+) may be emphasized taking into account the practical application of solar cells (the PV-device shall be competitive to silicon ones). On the other hand, a deep understanding of this glass system is also important for more noble applications such in cases of lasers, in which the efficacy for UC can be mandatory than cost. For these cases, the production of glass ceramics is desired to improve even more the UC emissions for selected compositions, which can be investigated by selected conditions. Lastly, the glasses which presented better results can be used to construct solar cells based on promising absorber (methyl-ammonium lead-perovskite) and conducting layer (aluminum-doped zinc oxide); thus, the improvement promoted by the UC for solar cells can be measured by photovoltaic tests. (AU)

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Scientific publications
(References retrieved automatically from Web of Science and SciELO through information on FAPESP grants and their corresponding numbers as mentioned in the publications by the authors)
DIAS, JEFERSON A.; SANTAGNELI, SILVIA H.; MESSADDEQ, YOUNES. Methods for Lithium Ion NASICON Preparation: From Solid-State Synthesis to Highly Conductive Glass-Ceramics. Journal of Physical Chemistry C, v. 124, n. 49, p. 26518-26539, . (19/25756-7, 15/22828-6)
DIAS, JEFERSON A.; SANTAGNELI, SILVIA H.; RIBEIRO, SIDNEY J. L.; MESSADDEQ, YOUNES. Perovskite Quantum Dot Solar Cells: An Overview of the Current Advances and Future Perspectives. SOLAR RRL, v. 5, n. 8, . (19/25756-7, 15/22828-6)

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