“Blue” temperature-induced shift and band-tail emission in InGaN-based light sources

“Blue” temperature-induced shift and band-tail emission in InGaN-based light sources

Electro- and photoluminescence spectra of high-brightness light-emitting AlGaN/InGaN/GaN single-quantum-well structures are studied over a broad range of temperatures and pumping levels. Blue shift of the spectral peak position was observed along with an increase of temperature and current. An invol...

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Veröffentlicht in:Applied physics letters 1997-08, Vol.71 (5), p.569-571
Hauptverfasser: Eliseev, Petr G., Perlin, Piotr, Lee, Jinhyun, Osiński, Marek
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container_end_page 571
container_issue 5
container_start_page 569
container_title Applied physics letters
container_volume 71
creator Eliseev, Petr G.
Perlin, Piotr
Lee, Jinhyun
Osiński, Marek
description Electro- and photoluminescence spectra of high-brightness light-emitting AlGaN/InGaN/GaN single-quantum-well structures are studied over a broad range of temperatures and pumping levels. Blue shift of the spectral peak position was observed along with an increase of temperature and current. An involvement of band-tail states in the radiative recombination was considered, and a quantitative description of the blue temperature-induced shift was proposed assuming a Gaussian shape of the band tail.
doi_str_mv 10.1063/1.119797
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title “Blue” temperature-induced shift and band-tail emission in InGaN-based light sources
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