[PDF][PDF] Recent progress in metal-organic chemical vapor deposition of N-polar group-III nitrides

S Keller, H Li, M Laurent, Y Hu, N Pfaff… - Semiconductor …, 2014 - researchgate.net
Progress in metal-organic chemical vapor deposition of high quality () 0001 N-polar (Al, Ga,
In) N films on sapphire, silicon carbide and silicon substrates is reviewed with focus on key …

A critical review of AlGaN/GaN-heterostructure based Schottky diode/HEMT hydrogen (H2) sensors for aerospace and industrial applications

J Ajayan, D Nirmal, R Ramesh, S Bhattacharya… - Measurement, 2021 - Elsevier
Hydrogen (H 2) has been widely used in H 2 fuelled vehicles, semiconductor fabrication,
medical treatments, chemical industry and industrial aerospace applications. However, H 2 …

Polarity and its influence on growth mechanism during MOVPE growth of GaN sub-micrometer rods

SF Li, S Fuendling, X Wang, S Merzsch… - Crystal growth & …, 2011 - ACS Publications
The influence of polarity during the MOVPE growth of GaN based sub-micrometer (sub-μm)
rods has mostly been neglected up to now. In this paper we demonstrate that the surface …

Graphene‐Assisted Epitaxy of Nitrogen Lattice Polarity GaN Films on Non‐Polar Sapphire Substrates for Green Light Emitting Diodes

F Liu, Z Zhang, X Rong, Y Yu, T Wang… - Advanced Functional …, 2020 - Wiley Online Library
Lattice polarity is a key point for hexagonal semiconductors such as GaN. Unfortunately,
only Ga‐polarity GaN have been achieved on graphene till now. Here, the epitaxy of high …

DNA-CTMA functionalized GaN surfaces for NO2 gas sensor at room temperature under UV illumination

M Reddeppa, SB Mitta, BG Park, SG Kim, SH Park… - Organic …, 2019 - Elsevier
Considering the power consumption and safety risks in the presence of combustible gases,
sensor operation at room temperature (RT∼ 28° C) has drawn much interest in recent days …

Porous GaN submicron rods for gas sensor with high sensitivity and excellent stability at high temperature

M Zhang, C Zhao, H Gong, G Niu… - ACS applied materials & …, 2019 - ACS Publications
Highly porous GaN submicron rods have been synthesized successfully by a facile
hydrothermal method and heat treatment under controlled atmosphere. The morphology and …

Highly sensitive nonpolar a-plane GaN based hydrogen diode sensor with textured active area using photo-chemical etching

KH Baik, J Kim, S Jang - sensors and actuators B: chemical, 2017 - Elsevier
In this work, a highly sensitive a-plane (11 2¯ 0) GaN (a-GaN) based hydrogen sensor with a
large active surface area on the Schottky contact region was fabricated and characterized …

Polarity control and fabrication of lateral polarity structures of III-nitride thin films and devices: Progress and prospects

W Guo, H Xu, L Chen, H Yu, M Sheikhi… - Journal of Physics D …, 2020 - iopscience.iop.org
Due to their non-centrosymmetric crystal orientation, wurtzite III-nitride crystals have two
distinct orientations, ie III-polar and N-polar along the c-axis. Extensive effort has been …

Pt-AlGaN/GaN hydrogen sensor with water-blocking PMMA layer

S Jung, KH Baik, F Ren, SJ Pearton… - IEEE Electron Device …, 2017 - ieeexplore.ieee.org
One of the biggest issues with GaN-based hydrogen sensors is their sensitivity to humidity in
the ambient. We demonstrate that encapsulation of Pt-AlGaN/GaN Schottky diode with poly …

Comparison of stress states in GaN films grown on different substrates: Langasite, sapphire and silicon

BG Park, RS Kumar, ML Moon, MD Kim, TW Kang… - Journal of Crystal …, 2015 - Elsevier
We demonstrate the evolution of GaN films on novel langasite (LGS) substrate by plasma-
assisted molecular beam epitaxy, and assessed the quality of grown GaN film by comparing …