Temperature sensitivity of the electro-optical characteristics for mid-infrared (λ= 3–16 μm)-emitting quantum cascade lasers

D Botez, CC Chang, LJ Mawst - Journal of Physics D: Applied …, 2015 - iopscience.iop.org
The temperature dependences of the threshold current and slope efficiency, as represented
by their respective characteristic temperature coefficients T 0 and T 1, are discussed for …

High-power mid-infrared (λ∼ 3-6 μm) quantum cascade lasers

LJ Mawst, D Botez - IEEE Photonics Journal, 2021 - ieeexplore.ieee.org
The performances of mid-infrared (IR) quantum cascade lasers (QCLs) are now reaching a
maturity level that enables a variety of applications which require compact laser sources …

Low-cost approaches to III–V semiconductor growth for photovoltaic applications

AL Greenaway, JW Boucher, SZ Oener… - ACS Energy …, 2017 - ACS Publications
III–V semiconductors form the most efficient single-and multijunction photovoltaics. Metal–
organic vapor-phase epitaxy, which uses toxic and pyrophoric gas-phase precursors, is the …

Multidimensional conduction-band engineering for maximizing the continuous-wave (CW) wallplug efficiencies of mid-infrared quantum cascade lasers

D Botez, JC Shin, JD Kirch, CC Chang… - IEEE Journal of …, 2013 - ieeexplore.ieee.org
By tailoring the active-region quantum wells and barriers of 4.5-5.0-μm-emitting quantum
cascade lasers (QCLs), the device performances dramatically improve. Deep-well QCLs …

Development of GaInP solar cells grown by hydride vapor phase epitaxy

KL Schulte, J Simon, J Mangum… - IEEE Journal of …, 2017 - ieeexplore.ieee.org
We demonstrate the growth of homojunction GaInP solar cells by dynamic hydride vapor
phase epitaxy for the first time. Simple unpassivated n-on-p structures grown in an inverted …

MOCVD-Grown In0.22Ga0.78As Metamorphic Buffer Layer with Ultralow Threading Dislocation Density

H Kim, S Xu, C Liu, K Lekhal, T Kuech… - Crystal Growth & …, 2024 - ACS Publications
Compositional step-graded In0. 22Ga0. 78As metamorphic buffer layers (MBLs) with a
series of thick individual step buffer layers on GaAs substrates are demonstrated by metal …

InGaAs/AlInAs strain-compensated superlattices grown on metamorphic buffer layers for low-strain, 3.6 μm-emitting quantum-cascade-laser active regions

LJ Mawst, JD Kirch, CC Chang, T Kim, T Garrod… - Journal of Crystal …, 2013 - Elsevier
Short-wavelength (λ∼ 3.6 μm) quantum-cascade-laser (QCL) designs, employing a
metamorphic buffer layer (MBL) on a GaAs substrate, have been developed for strong …

Hydride vapor phase epitaxy for current III–V and nitride semiconductor compound issues

E Gil, Y André, R Cadoret, A Trassoudaine - Handbook of Crystal Growth, 2015 - Elsevier
Hydride vapor phase epitaxy (HVPE) was part of the very first vapor phase epitaxy
processes developed for the growth of III–V semiconductor layers. HVPE's features—the …

Light-trap** structures fabricated in situ for ultrathin III-V solar cells

AN Perna, KL Schulte, J Simon, AK Braun… - Journal of Applied …, 2023 - pubs.aip.org
Here, we describe a fully in situ method of fabricating light-scattering structures on III-V
materials that generates a rough morphology via vapor phase etching and redeposition …

Effects of dislocation strain on the epitaxy of lattice-mismatched AlGaInP layers

K Mukherjee, DA Beaton, A Mascarenhas… - Journal of crystal …, 2014 - Elsevier
Strain fields arising from a non-uniform distribution of misfit dislocations in an underlying
compositionally graded buffer are shown to be sufficiently strong to modify indium …