Temperature dependence of thermophotonic energy transfer in intracavity structures

Tutkimustuotos: Artikkeli kirjassa/konferenssijulkaisussavertaisarvioitu

Tutkijat

Organisaatiot

Kuvaus

Electroluminescent cooling (ELC) of light-emitting diodes (LEDs) at high powers is yet to be demonstrated. Earlier studies of photoluminescent cooling (PLC) suggested that temperature strongly affects the light emission efficiency and therefore it is useful to explore the temperature range below room temperature (RT) where ELC might be easier to observe. With that purpose in mind, we electrically characterised three different sized (0.2, 0.5 and 1 mm diameter) double-diode structure (DDS) devices, consisting of a coupled LED and photodiode (PD), at temperatures ranging from 100 K to 325 K to investigate how the temperature affects the efficiency of the structures in practice. We found that, for the studied devices, the coupling quantum efficiency (CQE) as well as the overall efficiency indeed increase when temperature decreases and reach their highest values at temperatures below room temperature.

Yksityiskohdat

AlkuperäiskieliEnglanti
OtsikkoPhotonic Heat Engines
AlaotsikkoScience and Applications
ToimittajatDenis V. Seletskiy, Richard I. Epstein, Mansoor Sheik-Bahae
TilaJulkaistu - 1 tammikuuta 2019
OKM-julkaisutyyppiA4 Artikkeli konferenssijulkaisuussa
TapahtumaPhotonic Heat Engines: Science and Applications - San Francisco, Yhdysvallat
Kesto: 3 helmikuuta 20194 helmikuuta 2019

Julkaisusarja

NimiProceedings of SPIE
KustantajaSPIE
Vuosikerta10936
ISSN (painettu)0277-786X
ISSN (elektroninen)1996-756X

Conference

ConferencePhotonic Heat Engines: Science and Applications
MaaYhdysvallat
KaupunkiSan Francisco
Ajanjakso03/02/201904/02/2019

ID: 34094911