Bright thermal (blackbody) emission of visible light from LnO
In: Dalton transactions (Cambridge, England : 2003), Jg. 48 (2019-01-16), Heft 8
Online
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Zugriff:
The increasing demand for renewable energy has been promoting a rapid development of photovoltaic technologies. Given this, photoinduced thermal emission is being explored with the aim of improving solar cell performance by converting low-energy IR photons into visible light. Here, we report the light-induced blackbody emission from LnO2 (Ln = Pr and Tb) as a potential emitter for thermophotovoltaic applications. Lanthanide dioxides display broad IR absorption and a direct optical band gap of 1.49 (PrO2) and 1.51 eV (TbO2). These materials achieve a maximum temperature of ∼1500 K under a power density excitation of 160 W cm-2 and display a stable bright light emission. Thermal emission can be tuned from laser power density modulation.
Titel: |
Bright thermal (blackbody) emission of visible light from LnO
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Autor/in / Beteiligte Person: | C I, Silva Filho ; A L, Oliveira ; S C F, Pereira ; Gilberto F, de Sá ; L L, da Luz ; S, Alves |
Link: | |
Zeitschrift: | Dalton transactions (Cambridge, England : 2003), Jg. 48 (2019-01-16), Heft 8 |
Veröffentlichung: | 2019 |
Medientyp: | unknown |
ISSN: | 1477-9234 (print) |
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