Dramatic enhancement of near-infrared intersubband absorption in c-plane AlInN/GaN superlattices
We report substantial improvement of near-infrared (2–2.6 μm) intersubband absorption in c-plane AlInN/GaN superlattices grown by molecular beam epitaxy. Progress was obtained through optimization of AlInN growth conditions using an AlInN growth rate of 0.9-nm/min at substrate temperature of 550 °C, as well as by judiciously placing the charge into two delta-doping sheets. Structural characterization suggests that AlInN crystal quality is enhanced and interface roughness is reduced. Importantly, near-infrared absorption data indicate that the optical quality of the AlInN/GaN superlattices is now comparable with that of AlN/GaN superlattices designed to exploit near-infrared intersubband transitions.
- Sponsoring Organization:
- USDOE
- Grant/Contract Number:
- SC0012704
- OSTI ID:
- 1420603
- Alternate ID(s):
- OSTI ID: 22591460
- Journal Information:
- Applied Physics Letters, Journal Name: Applied Physics Letters Journal Issue: 12 Vol. 108; ISSN 0003-6951
- Publisher:
- American Institute of PhysicsCopyright Statement
- Country of Publication:
- United States
- Language:
- English
Similar Records
Dramatic enhancement of near-infrared intersubband absorption in c-plane AlInN/GaN superlattices
Intersubband energies in strain-compensated InGaN/AlInN quantum well structures
Near-infrared intersubband absorption in molecular-beam epitaxy-grown lattice-matched InAlN/GaN superlattices
Journal Article
·
Mon Mar 21 00:00:00 EDT 2016
· Applied Physics Letters
·
OSTI ID:22591460
Intersubband energies in strain-compensated InGaN/AlInN quantum well structures
Journal Article
·
Thu Jan 14 23:00:00 EST 2016
· AIP Advances
·
OSTI ID:22492390
Near-infrared intersubband absorption in molecular-beam epitaxy-grown lattice-matched InAlN/GaN superlattices
Journal Article
·
Mon Apr 20 00:00:00 EDT 2009
· Applied Physics Letters
·
OSTI ID:21294044