Selective emission of Al2O3/Er3Al5O12 eutectic composite for thermophotovoltaic generation of electricity

Hitoshi Sai; Hiroo Yugami; Kazuya Nakamura; Narihito Nakagawa; Hideki Ohtsubo; Shigenao Maruyama

doi:10.1143/jjap.39.1957

Selective emission of Al₂O₃/Er₃Al₅O₁₂ eutectic composite for thermophotovoltaic generation of electricity

Hitoshi Sai, Hiroo Yugami, Kazuya Nakamura, Narihito Nakagawa, Hideki Ohtsubo, Shigenao Maruyama

ENG - Mechanical Systems Engineering

Research output: Contribution to journal › Article › peer-review

39 Citations (Scopus)

Abstract

The emissive properties of Al₂O₃/Er₃Al₅O₁₂ eutectic composite were measured in the temperature range of 1000 to 1700 K. It was confirmed that the Al₂O₃/Er₃Al₅O₁₂ eutectic composite has selective emission bands at a wavelength of 1.5 μn attributable to Er³⁺ ions. It is found that the intensity obeys the T⁴-law. The emittance of over 0.8 is observed in the selective region. Since these emission bands match up the sensitive region of the GaSb PV cell spectrally, the Al₂O₃/Er₃Al₅O₁₂ eutectic composite is a suitable emitter material for using in thermophotovoltaic generation systems. The effects of temperature and thickness on the selective emission efficiency have been studied and discussed.

Original language	English
Pages (from-to)	1957-1961
Number of pages	5
Journal	Japanese Journal of Applied Physics, Part 1: Regular Papers and Short Notes and Review Papers
Volume	39
Issue number	4 A
DOIs	https://doi.org/10.1143/jjap.39.1957
Publication status	Published - 2000

Keywords

Eutectic composite
Gasb pv cell
High temperature emission
Rare earths
Selective emitter
Thermophotovoltaic generation

ASJC Scopus subject areas

Engineering(all)
Physics and Astronomy(all)

Access to Document

10.1143/jjap.39.1957

Cite this

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title = "Selective emission of Al2O3/Er3Al5O12 eutectic composite for thermophotovoltaic generation of electricity",

abstract = "The emissive properties of Al2O3/Er3Al5O12 eutectic composite were measured in the temperature range of 1000 to 1700 K. It was confirmed that the Al2O3/Er3Al5O12 eutectic composite has selective emission bands at a wavelength of 1.5 μn attributable to Er3+ ions. It is found that the intensity obeys the T4-law. The emittance of over 0.8 is observed in the selective region. Since these emission bands match up the sensitive region of the GaSb PV cell spectrally, the Al2O3/Er3Al5O12 eutectic composite is a suitable emitter material for using in thermophotovoltaic generation systems. The effects of temperature and thickness on the selective emission efficiency have been studied and discussed.",

keywords = "Eutectic composite, Gasb pv cell, High temperature emission, Rare earths, Selective emitter, Thermophotovoltaic generation",

author = "Hitoshi Sai and Hiroo Yugami and Kazuya Nakamura and Narihito Nakagawa and Hideki Ohtsubo and Shigenao Maruyama",

year = "2000",

doi = "10.1143/jjap.39.1957",

language = "English",

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pages = "1957--1961",

journal = "Japanese Journal of Applied Physics, Part 1: Regular Papers & Short Notes",

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T1 - Selective emission of Al2O3/Er3Al5O12 eutectic composite for thermophotovoltaic generation of electricity

AU - Sai, Hitoshi

AU - Yugami, Hiroo

AU - Nakamura, Kazuya

AU - Nakagawa, Narihito

AU - Ohtsubo, Hideki

AU - Maruyama, Shigenao

PY - 2000

Y1 - 2000

N2 - The emissive properties of Al2O3/Er3Al5O12 eutectic composite were measured in the temperature range of 1000 to 1700 K. It was confirmed that the Al2O3/Er3Al5O12 eutectic composite has selective emission bands at a wavelength of 1.5 μn attributable to Er3+ ions. It is found that the intensity obeys the T4-law. The emittance of over 0.8 is observed in the selective region. Since these emission bands match up the sensitive region of the GaSb PV cell spectrally, the Al2O3/Er3Al5O12 eutectic composite is a suitable emitter material for using in thermophotovoltaic generation systems. The effects of temperature and thickness on the selective emission efficiency have been studied and discussed.

AB - The emissive properties of Al2O3/Er3Al5O12 eutectic composite were measured in the temperature range of 1000 to 1700 K. It was confirmed that the Al2O3/Er3Al5O12 eutectic composite has selective emission bands at a wavelength of 1.5 μn attributable to Er3+ ions. It is found that the intensity obeys the T4-law. The emittance of over 0.8 is observed in the selective region. Since these emission bands match up the sensitive region of the GaSb PV cell spectrally, the Al2O3/Er3Al5O12 eutectic composite is a suitable emitter material for using in thermophotovoltaic generation systems. The effects of temperature and thickness on the selective emission efficiency have been studied and discussed.

KW - Eutectic composite

KW - Gasb pv cell

KW - High temperature emission

KW - Rare earths

KW - Selective emitter

KW - Thermophotovoltaic generation

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JO - Japanese Journal of Applied Physics, Part 1: Regular Papers & Short Notes

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