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

Abstract

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)

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, DEC 10 2020. (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, AUG 2021. (19/25756-7, 15/22828-6)