Abstract
We present a theoretical analysis of the optoelectronic properties of type-II GaAs1-xBix/GaNyAs1-y quantum wells (QWs) grown on GaAs substrates. We eludicate the broad scope for band structure engineering in these novel heterostructures, demonstrating that they offer emission and absorption out to mid-infrared wavelengths in structures which can be grown with little or no net strain relative to GaAs. We confirm our analysis by comparing to experiments on a prototype GaAs0.967Bi0.033/GaN0.062As0.938 structure, which show room temperature photoluminescence (PL) and absorption at a wavelength of 1.72 μm (one of the longest achieved to date from a pseudomorphic GaAs-based heterostructure). Overall, we demonstrate that this new class of type-II QWs has significant promise for (i) extending the wavelength range accessible to the GaAs material platform, and (ii) the development of long-wavelength photonic devices and highly efficient solar cells.
| Original language | English |
|---|---|
| Title of host publication | 17th International Conference on Numerical Simulation of Optoelectronic Devices, NUSOD 2017 |
| Editors | Morten Willatzen, Joachim Piprek |
| Publisher | IEEE Computer Society |
| Pages | 115-116 |
| Number of pages | 2 |
| ISBN (Electronic) | 9781509053230 |
| DOIs | |
| Publication status | Published - 11 Aug 2017 |
| Event | 17th International Conference on Numerical Simulation of Optoelectronic Devices, NUSOD 2017 - Copenhagen, Denmark Duration: 24 Jul 2017 → 28 Jul 2017 |
Publication series
| Name | Proceedings of the International Conference on Numerical Simulation of Optoelectronic Devices, NUSOD |
|---|---|
| ISSN (Print) | 2158-3234 |
Conference
| Conference | 17th International Conference on Numerical Simulation of Optoelectronic Devices, NUSOD 2017 |
|---|---|
| Country/Territory | Denmark |
| City | Copenhagen |
| Period | 24/07/17 → 28/07/17 |
UN SDGs
This output contributes to the following UN Sustainable Development Goals (SDGs)
-
SDG 7 Affordable and Clean Energy
Fingerprint
Dive into the research topics of 'Strain-balanced type-II superlattices on GaAs: Novel heterostructures for photonics and photovoltaics'. Together they form a unique fingerprint.Cite this
- APA
- Author
- BIBTEX
- Harvard
- Standard
- RIS
- Vancouver