Radiative and Nonradiative Recombination Processes in GaN-Based Semiconductors

Autor: Koichi Okamoto, Kunimichi Omae, Kenichi Inoue, Sg. Fujita, Yoichi Kawakami, Yukio Narukawa, Tomoaki Izumi, S. Sajou, Akio Kaneta, Takashi Mukai
Rok vydání: 2001
Předmět:
Zdroj: physica status solidi (a). 183:41-50
ISSN: 1521-396X
0031-8965
DOI: 10.1002/1521-396x(200101)183:1<41::aid-pssa41>3.0.co;2-v
Popis: Time-resolved optical characterization is an indispensable tool to study the recombination mechanisms of excitons and/or carriers based on radiative, non-radiative, localization and many-body processes. In this paper, we review the instrumentation of various spectroscopic techniques for the assessment of In x Ga 1 -x N-based semiconductors such as time-resolved photoluminescence (TRPL), time-resolved electroluminescence (TREL), transient grating (TG) method to probe photothermal processes, microscopic TRPL using optical microscope, submicroscopic TRPL using scanning near field optical microscopy (SNOM) and pump-and-probe spectroscopy for the measurement of transient absorption/gain spectra. The obtained results are cited in the references.
Databáze: OpenAIRE