All-optical characterization of carrier lifetimes and diffusion lengths in MOCVD-, ELO-, and HVPE-grown GaN

T Malinauskas, R Aleksiejūnas, K Jarašiūnas… - Journal of crystal …, 2007 - Elsevier
The metrological capability of the picosecond four-wave mixing (FWM) technique for
evaluation of the photoelectrical properties of GaN heterostructures grown on sapphire …

The determination of high-density carrier plasma parameters in epitaxial layers, semi-insulating and heavily doped crystals of 4H-SiC by a picosecond four-wave …

K Neimontas, T Malinauskas… - Semiconductor …, 2006 - iopscience.iop.org
We applied a picosecond four-wave mixing technique for measurements of carrier lifetimes
and diffusion coefficients in highly excited epitaxial layers, semi-insulating and heavily …

Carrier transport and recombination in InGaN/GaN heterostructures, studied by optical four‐wave mixing technique

R Aleksiejūnas, M Sūdžius, V Gudelis… - … status solidi (c), 2003 - Wiley Online Library
Time‐resolved four‐wave mixing has been performed in InGaN/GaN/sapphire
heterostructures using picosecond pulses at 355 nm for carrier excitation. In‐plane diffusion …

Subgap time of flight: A spectroscopic study of deep levels in semi-insulating CdTe: Cl

J Pousset, I Farella, S Gambino, A Cola - Journal of Applied Physics, 2016 - pubs.aip.org
We report on a study of deep levels in semi-insulating CdTe: Cl by means of a time-of-flight
spectral approach. By varying the wavelength of a pulsed optical source within the CdTe …

Correlation between the low-temperature PL spectra and Cd0. 9Zn0. 1Te quality

G Li, X Zhang, W Jie - Semiconductor science and technology, 2004 - iopscience.iop.org
The low-temperature photoluminescence (PL) measurements revealed that Cd 0.9 Zn 0.1 Te
PL spectra consisted of three regions: the near-band-edge region with an emission peak I 0 …

Light-induced dynamic gratings and photorefraction

HJ Eichler, A Hermerschmidt - … Materials and Their Applications 1: Basic …, 2006 - Springer
2.5 Conclusions Dynamic gratings can be induced by interfering laser beams in almost any
optical material. Some selected works related to laser-induced gratings have been used as …

Hole spin surfaces in A3B5 semiconductors

A Dargys - physica status solidi (b), 2004 - Wiley Online Library
Abstract Properties of spin surfaces of heavy‐mass, light‐mass and split‐off bands of GaAs,
InAs, GaP, InP, GaSb, and InSb are presented under various approximations. A simple two …

Evaluation of deep‐impurity governed photoelectrical properties in differently doped CdTe

A Kadys, M Sudzius, K Jarasiunas… - … status solidi (b), 2007 - Wiley Online Library
We investigated nonequilibrium carrier generation, transport, and recombination processes
in differently doped bulk CdTe crystals by the contactless nonlinear optical technique–the …

Visualizing Bulk-to-Surface Carrier Diffusion via Band-bending of Solar Cell Materials by 4D Electron Microscopy at Low Applied Potential

AM El-Zohry, B Shaheen, TG Allen, M De Bastiani… - 2023 - chemrxiv.org
Utilizing four-dimensional scanning ultrafast electron microscopy (4D-SUEM) is a powerful
tool to monitor charge dynamics at material surfaces and interfaces especially for the …

Optical characterization of defect-related carrier recombination and transport features in GaN substrates and CVD diamonds

K Jarašiūnas, T Malinauskas… - Materials Science …, 2009 - Trans Tech Publ
Defect related carrier recombination and transport properties have been investigated in
differently doped HVPE GaN substrates and CVD diamond layers. Carrier generation by …