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This book highlights the rapidly emerging field of
solution-processed halide perovskite lasers. These amazing
materials not only possess exceptional photovoltaic properties, but
are also outstanding optical gain media. Halide perovskites are the
latest member of solution-processed optical gain media, joining
organics and traditional semiconductor colloidal quantum dots.
Amplified spontaneous emission and lasing have been demonstrated in
various halide perovskite configurations and nanostructures with
wavelengths tunable over the visible and infrared wavelengths
(400-1000 nm). This book provides comprehensive information on
perovskite lasing, starting with some fundamentals of lasers and
their basic operating principles. Unambiguous methods for
identifying lasing light emission are presented, while the basic
optoelectronic properties of perovskite materials are also
discussed, with an emphasis on their photophysics, using ultrafast
optical spectroscopy techniques. The viability of perovskites as a
gain media within a suitable resonator, as well as the
characterization methods for optical gain, are highlighted. The
book closes with a discussion on the remaining challenges (such as
electrical driven lasing and material stabilities) that need to be
tackled, and the future of this new family of lasers.
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