TY - JOUR
T1 - Band gap tuning in InxGa1-xN/InyGa1-yN short period superlattices
AU - Gorczyca, I.
AU - Staszczak, G.
AU - Targowski, G.
AU - Grzanka, E.
AU - Smalc-Koziorowska, J.
AU - Suski, T.
AU - Kawamura, T.
AU - Kangawa, Y.
N1 - Funding Information:
This work was supported by the Polish National Science Center , grants 2014/15/D/ST3/03808 , 2015/17/B/ST7/04091 , and by JSPS KAKENHI (Grant Number JP16H06418 ) and Collaborative Research Program of RIAM , Kyushu University . This research was supported in part by PLGrid Infrastructure.
Publisher Copyright:
© 2021 Elsevier Ltd
PY - 2021/7
Y1 - 2021/7
N2 - To overcome the technological problem of the low In incorporation in InGaN based heterostructures we consider superlattices of the type: InxGa1-xN/InyGa1-yN (x > y). It is shown that the structures of the proposed type allow for a more precise tuning of the emission energy and shift of the light emission to lower energies by about 400 meV (50–60 nm) compared to the conventional InxGa1-xN/GaN SLs with the same concentration x. The above conclusions were drawn on the basis of comparing the calculated ab-initio band gaps with the photoluminescence emission energies obtained from the measurements performed on the specially designed samples grown by metal-organic vapor phase epitaxy.
AB - To overcome the technological problem of the low In incorporation in InGaN based heterostructures we consider superlattices of the type: InxGa1-xN/InyGa1-yN (x > y). It is shown that the structures of the proposed type allow for a more precise tuning of the emission energy and shift of the light emission to lower energies by about 400 meV (50–60 nm) compared to the conventional InxGa1-xN/GaN SLs with the same concentration x. The above conclusions were drawn on the basis of comparing the calculated ab-initio band gaps with the photoluminescence emission energies obtained from the measurements performed on the specially designed samples grown by metal-organic vapor phase epitaxy.
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U2 - 10.1016/j.spmi.2021.106907
DO - 10.1016/j.spmi.2021.106907
M3 - Article
AN - SCOPUS:85105459983
SN - 0749-6036
VL - 155
JO - Superlattices and Microstructures
JF - Superlattices and Microstructures
M1 - 106907
ER -