Strain Balanced AlGaN/GaN/AlGaN nanomembrane HEMTs
Abstract Single crystal semiconductor nanomembranes (NM) are important in various applications such as heterogeneous integration and flexible devices. This paper reports the fabrication of AlGaN/GaN NMs and NM high electron mobility transistors (HEMT). Electrochemical etching is used to slice off si...
Main Authors: | , , , , , |
---|---|
Format: | Article |
Language: | English |
Published: |
Nature Publishing Group
2017-07-01
|
Series: | Scientific Reports |
Online Access: | https://doi.org/10.1038/s41598-017-06957-8 |
id |
doaj-78b17a0546e242209a1dd0f8ba3b4206 |
---|---|
record_format |
Article |
spelling |
doaj-78b17a0546e242209a1dd0f8ba3b42062020-12-08T01:29:57ZengNature Publishing GroupScientific Reports2045-23222017-07-01711910.1038/s41598-017-06957-8Strain Balanced AlGaN/GaN/AlGaN nanomembrane HEMTsTzu-Hsuan Chang0Kanglin Xiong1Sung Hyun Park2Ge Yuan3Zhenqiang Ma4Jung Han5Department of Electrical and Computer Engineering, University of Wisconsin-MadisonDepartment of Electrical Engineering, Yale UniversityDepartment of Electrical Engineering, Yale UniversityDepartment of Electrical Engineering, Yale UniversityDepartment of Electrical and Computer Engineering, University of Wisconsin-MadisonDepartment of Electrical Engineering, Yale UniversityAbstract Single crystal semiconductor nanomembranes (NM) are important in various applications such as heterogeneous integration and flexible devices. This paper reports the fabrication of AlGaN/GaN NMs and NM high electron mobility transistors (HEMT). Electrochemical etching is used to slice off single-crystalline AlGaN/GaN layers while preserving their microstructural quality. A double heterostructure design with a symmetric strain profile is employed to ensure minimal residual strain in freestanding NMs after release. The mobility of the two-dimensional electron gas (2DEG), formed by the AlGaN/GaN heterostructure, is noticeably superior to previously reported values of many other NMs. AlGaN/GaN nanomembrane HEMTs are fabricated on SiO2 and flexible polymeric substrates. Excellent electrical characteristics, including a high ON/OFF ratio and transconductance, suggest that III-Nitrides nanomembranes are capable of supporting high performance applications.https://doi.org/10.1038/s41598-017-06957-8 |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Tzu-Hsuan Chang Kanglin Xiong Sung Hyun Park Ge Yuan Zhenqiang Ma Jung Han |
spellingShingle |
Tzu-Hsuan Chang Kanglin Xiong Sung Hyun Park Ge Yuan Zhenqiang Ma Jung Han Strain Balanced AlGaN/GaN/AlGaN nanomembrane HEMTs Scientific Reports |
author_facet |
Tzu-Hsuan Chang Kanglin Xiong Sung Hyun Park Ge Yuan Zhenqiang Ma Jung Han |
author_sort |
Tzu-Hsuan Chang |
title |
Strain Balanced AlGaN/GaN/AlGaN nanomembrane HEMTs |
title_short |
Strain Balanced AlGaN/GaN/AlGaN nanomembrane HEMTs |
title_full |
Strain Balanced AlGaN/GaN/AlGaN nanomembrane HEMTs |
title_fullStr |
Strain Balanced AlGaN/GaN/AlGaN nanomembrane HEMTs |
title_full_unstemmed |
Strain Balanced AlGaN/GaN/AlGaN nanomembrane HEMTs |
title_sort |
strain balanced algan/gan/algan nanomembrane hemts |
publisher |
Nature Publishing Group |
series |
Scientific Reports |
issn |
2045-2322 |
publishDate |
2017-07-01 |
description |
Abstract Single crystal semiconductor nanomembranes (NM) are important in various applications such as heterogeneous integration and flexible devices. This paper reports the fabrication of AlGaN/GaN NMs and NM high electron mobility transistors (HEMT). Electrochemical etching is used to slice off single-crystalline AlGaN/GaN layers while preserving their microstructural quality. A double heterostructure design with a symmetric strain profile is employed to ensure minimal residual strain in freestanding NMs after release. The mobility of the two-dimensional electron gas (2DEG), formed by the AlGaN/GaN heterostructure, is noticeably superior to previously reported values of many other NMs. AlGaN/GaN nanomembrane HEMTs are fabricated on SiO2 and flexible polymeric substrates. Excellent electrical characteristics, including a high ON/OFF ratio and transconductance, suggest that III-Nitrides nanomembranes are capable of supporting high performance applications. |
url |
https://doi.org/10.1038/s41598-017-06957-8 |
work_keys_str_mv |
AT tzuhsuanchang strainbalancedalganganalgannanomembranehemts AT kanglinxiong strainbalancedalganganalgannanomembranehemts AT sunghyunpark strainbalancedalganganalgannanomembranehemts AT geyuan strainbalancedalganganalgannanomembranehemts AT zhenqiangma strainbalancedalganganalgannanomembranehemts AT junghan strainbalancedalganganalgannanomembranehemts |
_version_ |
1724394791185154048 |