A thorough discussion of the various features of the photoluminescence spectra of undoped,
p‐doped and n‐doped Al x Ga1− x As (0≤ x≤ 1) alloys is given. This review covers spectral …

Publisher Summary The most direct way of observing the fundamental edge is by
determining the absorption from transmission measurements and this is generally the …

Light-emitting diodes (LEDs) are devices designed to efficiently convert electrical energy
into electromagnetic radiation, most of which is visible to the human eye. Some of the …

The broad-band photoluminescence spectra typical of bulk-grown or low-purity epitaxial
GaAs breaks into a number of sharp emission lines in very-high-purity GaAs. At low …

Quantum well devices have been the objects of intensive research during the last two
decades. Some of the devices have matured into commercially useful products and form part …

Publisher Summary This chapter discusses the theory of photoluminescence. The
semiclassical formalism is retained but modified to include spontaneous emission in a …

The processes involved in the laser effect in CdS excited by electron bombardment have
been studied with the aid of an experimental technique allowing the spectral dependence of …

Various thin-film I2–II–IV–VI4 photovoltaic absorbers derived from kesterite Cu2ZnSn (S, Se)
4 have been synthesized, characterized, and theoretically investigated in the past few years …

ABSTRACT A summary is given of the optical absorption in seven polytypes of SiC. Nitrogen-
exciton four-and three-particle spectra for a number of polytypes are discussed. Combining …

Publisher Summary This chapter reviews the photoluminiscence properties of GaAs. Helium–
neon laser is used for photoluminescence measurements on GaAs. In addition …