Effects of antimony surfactanton indium gallium nitride grown by organometallic vapor phase epitaxy
This work reviews the fundamentals of InGaN materials and of surfactant effects in surfactant-mediated heteroepitaxial growth. The basic surface processes and possible surfactant mechanisms are presented. These principles are then applied to a study of the effects of Sb surfactant on InGaN grown by...
Main Author: | |
---|---|
Format: | Text |
Language: | English |
Published: |
University of Utah
2013
|
Subjects: | |
Online Access: | https://dx.doi.org/10.26053/0h-vex9-0fg0 https://collections.lib.utah.edu/ark:/87278/s63n2j62 |
id |
ftdatacite:10.26053/0h-vex9-0fg0 |
---|---|
record_format |
openpolar |
spelling |
ftdatacite:10.26053/0h-vex9-0fg0 2023-05-15T17:08:55+02:00 Effects of antimony surfactanton indium gallium nitride grown by organometallic vapor phase epitaxy Merrell, Jason Lawrence 2013 application/pdf https://dx.doi.org/10.26053/0h-vex9-0fg0 https://collections.lib.utah.edu/ark:/87278/s63n2j62 en eng University of Utah Antimony Indium Gallium Nitride InGaN Organometallic vapor phase epitaxy Sb Surfactant article-journal Text ScholarlyArticle 2013 ftdatacite https://doi.org/10.26053/0h-vex9-0fg0 2021-11-05T12:55:41Z This work reviews the fundamentals of InGaN materials and of surfactant effects in surfactant-mediated heteroepitaxial growth. The basic surface processes and possible surfactant mechanisms are presented. These principles are then applied to a study of the effects of Sb surfactant on InGaN grown by organometallic vapor phase epitaxy (OMVPE). Eight samples of InGaN were prepared with varying amounts of Sb (0-2.5%) present during growth. The samples were characterized by atomic force microscopy (AFM), photoluminescence (PL), near field scanning optical microscopy (NSOM), scanning electron microscopy (SEM), and scanning transmission electron microscopy (STEM). InGaN grown without surfactant was smooth with large, wide islands and low island density. Samples grown with 0.5%, 0.75%, and 1% Sb showed an increase in 3D island growth and displayed a blue PL emission peak (~460 nm). STEM showed an In-rich InGaN film with three dimensional (3D) islanding or quantum dots (QDs) on the surface. Samples grown with 1.25%, 1.75%, 2% and 2.5% Sb showed a drastic increase in 3D island density. These samples showed a green (~550 nm) emission peak. STEM showed a different In distribution, with In-rich QDs on the surface. The sudden change in surface morphology and PL emission peak suggest that Sb induces a different surface reconstruction at a certain threshold concentration between 1% and 1.25% that affects In incorporation or In distribution in the film as well as overall surface morphology. Text Low Island DataCite Metadata Store (German National Library of Science and Technology) |
institution |
Open Polar |
collection |
DataCite Metadata Store (German National Library of Science and Technology) |
op_collection_id |
ftdatacite |
language |
English |
topic |
Antimony Indium Gallium Nitride InGaN Organometallic vapor phase epitaxy Sb Surfactant |
spellingShingle |
Antimony Indium Gallium Nitride InGaN Organometallic vapor phase epitaxy Sb Surfactant Merrell, Jason Lawrence Effects of antimony surfactanton indium gallium nitride grown by organometallic vapor phase epitaxy |
topic_facet |
Antimony Indium Gallium Nitride InGaN Organometallic vapor phase epitaxy Sb Surfactant |
description |
This work reviews the fundamentals of InGaN materials and of surfactant effects in surfactant-mediated heteroepitaxial growth. The basic surface processes and possible surfactant mechanisms are presented. These principles are then applied to a study of the effects of Sb surfactant on InGaN grown by organometallic vapor phase epitaxy (OMVPE). Eight samples of InGaN were prepared with varying amounts of Sb (0-2.5%) present during growth. The samples were characterized by atomic force microscopy (AFM), photoluminescence (PL), near field scanning optical microscopy (NSOM), scanning electron microscopy (SEM), and scanning transmission electron microscopy (STEM). InGaN grown without surfactant was smooth with large, wide islands and low island density. Samples grown with 0.5%, 0.75%, and 1% Sb showed an increase in 3D island growth and displayed a blue PL emission peak (~460 nm). STEM showed an In-rich InGaN film with three dimensional (3D) islanding or quantum dots (QDs) on the surface. Samples grown with 1.25%, 1.75%, 2% and 2.5% Sb showed a drastic increase in 3D island density. These samples showed a green (~550 nm) emission peak. STEM showed a different In distribution, with In-rich QDs on the surface. The sudden change in surface morphology and PL emission peak suggest that Sb induces a different surface reconstruction at a certain threshold concentration between 1% and 1.25% that affects In incorporation or In distribution in the film as well as overall surface morphology. |
format |
Text |
author |
Merrell, Jason Lawrence |
author_facet |
Merrell, Jason Lawrence |
author_sort |
Merrell, Jason Lawrence |
title |
Effects of antimony surfactanton indium gallium nitride grown by organometallic vapor phase epitaxy |
title_short |
Effects of antimony surfactanton indium gallium nitride grown by organometallic vapor phase epitaxy |
title_full |
Effects of antimony surfactanton indium gallium nitride grown by organometallic vapor phase epitaxy |
title_fullStr |
Effects of antimony surfactanton indium gallium nitride grown by organometallic vapor phase epitaxy |
title_full_unstemmed |
Effects of antimony surfactanton indium gallium nitride grown by organometallic vapor phase epitaxy |
title_sort |
effects of antimony surfactanton indium gallium nitride grown by organometallic vapor phase epitaxy |
publisher |
University of Utah |
publishDate |
2013 |
url |
https://dx.doi.org/10.26053/0h-vex9-0fg0 https://collections.lib.utah.edu/ark:/87278/s63n2j62 |
genre |
Low Island |
genre_facet |
Low Island |
op_doi |
https://doi.org/10.26053/0h-vex9-0fg0 |
_version_ |
1766064835876880384 |