In the last two decades, the third-generation wide bandgap semiconductor III-nitrides have revolutionized a myriad of electronic and photonic devices and applications, including power electronics, extreme-environment electronics, RF amplifiers, and optoelectronics such as light-emitting diodes and laser diodes. Recently, III-nitride heterostructures (e.g., AlGaN/GaN) based intersubband transition (ISBT) has garnered considerable research interest for infrared (IR), terahertz (THz), and ultrafast optoelectronics (e.g., photodetectors and quantum cascade lasers) due to its large conduction band offset, large optical phonon energy, and promising room-temperature operation. This paper presents a comprehensive review on the recent progress and challenges of III-nitrides based ISBT from the perspectives of materials, structures, devices, and applications, with a focus on nonpolar and semipolar III-nitrides. Various device structures have been demonstrated for III-nitrides based ISBT, including quantum wells, dots, and wires, among which AlGaN/GaN quantum wells are the most widely used. The effects of device parameters, crystal orientations, and doping on the ISBT properties of AlGaN/GaN quantum wells are discussed. Although the room-temperature operation is still elusive, theoretical and experimental studies show that nonpolar and semipolar III-nitrides based ISBT exhibits tunable ISBT wavelength from far-IR to THz spectral range with higher efficiency compared with polar c-plane ISBT. This review can serve as a gateway to and an important reference for the recent progress and challenges of III-nitrides based ISBT and its potential applications in sensing, communication, ultrafast optoelectronics, and integrated photonics.
@article{osti_1979067,
author = {Mudiyanselage, Dinusha Herath and Wang, Dawei and Zhao, Yuji and Fu, Houqiang},
title = {Intersubband transitions in nonpolar and semipolar III-nitrides: Materials, devices, and applications},
annote = {In the last two decades, the third-generation wide bandgap semiconductor III-nitrides have revolutionized a myriad of electronic and photonic devices and applications, including power electronics, extreme-environment electronics, RF amplifiers, and optoelectronics such as light-emitting diodes and laser diodes. Recently, III-nitride heterostructures (e.g., AlGaN/GaN) based intersubband transition (ISBT) has garnered considerable research interest for infrared (IR), terahertz (THz), and ultrafast optoelectronics (e.g., photodetectors and quantum cascade lasers) due to its large conduction band offset, large optical phonon energy, and promising room-temperature operation. This paper presents a comprehensive review on the recent progress and challenges of III-nitrides based ISBT from the perspectives of materials, structures, devices, and applications, with a focus on nonpolar and semipolar III-nitrides. Various device structures have been demonstrated for III-nitrides based ISBT, including quantum wells, dots, and wires, among which AlGaN/GaN quantum wells are the most widely used. The effects of device parameters, crystal orientations, and doping on the ISBT properties of AlGaN/GaN quantum wells are discussed. Although the room-temperature operation is still elusive, theoretical and experimental studies show that nonpolar and semipolar III-nitrides based ISBT exhibits tunable ISBT wavelength from far-IR to THz spectral range with higher efficiency compared with polar c-plane ISBT. This review can serve as a gateway to and an important reference for the recent progress and challenges of III-nitrides based ISBT and its potential applications in sensing, communication, ultrafast optoelectronics, and integrated photonics.},
doi = {10.1063/5.0088021},
url = {https://www.osti.gov/biblio/1979067},
journal = {Journal of Applied Physics},
issn = {ISSN 0021-8979},
number = {21},
volume = {131},
place = {United States},
publisher = {American Institute of Physics (AIP)},
year = {2022},
month = {06}}
Iowa State Univ., Ames, IA (United States); Energy Frontier Research Centers (EFRC) (United States). Ultra Materials for a Resilient, Smart Electricity Grid (ULTRA); Arizona State Univ., Tempe, AZ (United States)
Sponsoring Organization:
USDOE Office of Science (SC), Basic Energy Sciences (BES); Army Research Office (ARO) PECASE
Grant/Contract Number:
SC0021230
OSTI ID:
1979067
Alternate ID(s):
OSTI ID: 1871063
Journal Information:
Journal of Applied Physics, Journal Name: Journal of Applied Physics Journal Issue: 21 Vol. 131; ISSN 0021-8979
2011 36th International Conference on Infrared, Millimeter, and Terahertz Waves (IRMMW-THz 2011), 2011 International Conference on Infrared, Millimeter, and Terahertz Waveshttps://doi.org/10.1109/irmmw-THz.2011.6105201