Solar thermophotovoltaic using Al2O3/Er3Al5O12 eutectic composite selective emitter

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

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

48 Citations (Scopus)


Thermal emission properties of Al2O3/Er3Al6O12 eutectic composite are studied for the application of selective emitter of thermophotovoltaic (TPV) power generator. Since this material has unique structure, high mechanical performance would be expected. Selective emission bands at wavelength 1.5μm due to Er3+ ions is observed. Since these emission bands match up the sensitive region of GaSb PV cell, Al2O3/Er3AlsO12 eutectic composite is a suitable emitter material for TPV systems. Solar TPV system with a dish-type solar concentrator (diameter= 1.56m) has been made and tested using the selective emitter material. The performance and component temperature are studied for the system equipped with broad band SiC and Al2O3/Er3Al5O12 eutectic composite selective emitters. Low thermal load for TPV optical components is confirmed for the selective emitter system. The improvement of fill factor of GaSb PV cells is also observed for selective emitter system.

Original languageEnglish
Title of host publicationConference Record of the 28th IEEE Photovoltaic Specialists Conference - 2000
PublisherInstitute of Electrical and Electronics Engineers Inc.
Number of pages4
ISBN (Electronic)0780357728
Publication statusPublished - 2000
Event28th IEEE Photovoltaic Specialists Conference, PVSC 2000 - Anchorage, United States
Duration: 2000 Sept 152000 Sept 22

Publication series

NameConference Record of the IEEE Photovoltaic Specialists Conference
ISSN (Print)0160-8371


Conference28th IEEE Photovoltaic Specialists Conference, PVSC 2000
Country/TerritoryUnited States


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