Unknown

Dataset Information

0

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 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.

SUBMITTER: Chang TH 

PROVIDER: S-EPMC5527108 | biostudies-literature | 2017 Jul

REPOSITORIES: biostudies-literature

altmetric image

Publications

Strain Balanced AlGaN/GaN/AlGaN nanomembrane HEMTs.

Chang Tzu-Hsuan TH   Xiong Kanglin K   Park Sung Hyun SH   Yuan Ge G   Ma Zhenqiang Z   Han Jung J  

Scientific reports 20170725 1


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 N  ...[more]

Similar Datasets

| S-EPMC6747841 | biostudies-literature
| S-EPMC7177355 | biostudies-literature
| S-EPMC6874540 | biostudies-literature
| S-EPMC6187712 | biostudies-literature
| S-EPMC7508848 | biostudies-literature
| S-EPMC7239987 | biostudies-literature
| S-EPMC7560388 | biostudies-literature
| S-EPMC10490568 | biostudies-literature
| S-EPMC7570367 | biostudies-literature
| S-EPMC9609307 | biostudies-literature