NaLaF{sub 4}:Pr{sup 3+},Yb{sup 3+}, an efficient blue to near infra-red quantum cutter

Journal Article · Sun Dec 01 00:00:00 EST 2013 · APL Materials

DOI:https://doi.org/10.1063/1.4843455· OSTI ID:22269581

Guille, A.; Pereira, A.

In order to reduce the thermalization losses in solar cells, down-conversion of blue photons into near infra-red photons is a promising solution. In the present paper, we analyse the energy transfer processes between Pr{sup 3+} and Yb{sup 3+} in NaLaF{sub 4} and we show that an efficient quantum-cutting process occurs. Nevertheless, we also show that a back transfer from Yb{sup 3+} toward the {sup 1}G{sub 4} level of Pr{sup 3+} ion leading to emission beyond 1 μm reduces the potentiality of this material as a quantum cutter for Si solar cells.

• OSTI ID: 22269581
• Journal Information: APL Materials, Vol. 1, Issue 6; Other Information: (c) 2013 Author(s); Country of input: International Atomic Energy Agency (IAEA); ISSN 2166-532X
• Country of Publication: United States
• Language: English

Related Subjects

74 ATOMIC AND MOLECULAR PHYSICS
36 MATERIALS SCIENCE
EMISSION
ENERGY TRANSFER
PHOTONS
PRASEODYMIUM IONS
SOLAR CELLS
THERMALIZATION
YTTERBIUM IONS