Random lasing in organo-lead halide perovskite microcrystal networks

R. Dhanker; A. N. Brigeman; A. V. Larsen; R. J. Stewart; John B. Asbury; Noel Christopher Giebink

doi:10.1063/1.4898703

Random lasing in organo-lead halide perovskite microcrystal networks

R. Dhanker, A. N. Brigeman, A. V. Larsen, R. J. Stewart, John B. Asbury, Noel Christopher Giebink

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138 Scopus citations

Abstract

We report optically pumped random lasing in planar methylammonium lead iodide perovskite microcrystal networks that form spontaneously from spin coating. Low thresholds (<200 μJ/cm²) and narrow linewidths (Δλ < 0.5 nm) reflect lasing from closed quasi-modes that result from ballistic waveguiding in linear network segments linked by scattering at the junctions. Spatio-spectral imaging indicates that these quasi-modes extend over lateral length scales >100 μm and spatially overlap with one another, resulting in chaotic pulse-to-pulse intensity fluctuations due to gain competition. These results demonstrate this class of hybrid organic-inorganic perovskite as a platform to study random lasing with well-defined, low-level disorder, and support the potential of these materials for use in semiconductor laser applications.

Original language	English (US)
Article number	151112
Journal	Applied Physics Letters
Volume	105
Issue number	15
DOIs	https://doi.org/10.1063/1.4898703
State	Published - Oct 13 2014

All Science Journal Classification (ASJC) codes

Physics and Astronomy (miscellaneous)

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title = "Random lasing in organo-lead halide perovskite microcrystal networks",

abstract = "We report optically pumped random lasing in planar methylammonium lead iodide perovskite microcrystal networks that form spontaneously from spin coating. Low thresholds (<200 μJ/cm2) and narrow linewidths (Δλ < 0.5 nm) reflect lasing from closed quasi-modes that result from ballistic waveguiding in linear network segments linked by scattering at the junctions. Spatio-spectral imaging indicates that these quasi-modes extend over lateral length scales >100 μm and spatially overlap with one another, resulting in chaotic pulse-to-pulse intensity fluctuations due to gain competition. These results demonstrate this class of hybrid organic-inorganic perovskite as a platform to study random lasing with well-defined, low-level disorder, and support the potential of these materials for use in semiconductor laser applications.",

author = "R. Dhanker and Brigeman, {A. N.} and Larsen, {A. V.} and Stewart, {R. J.} and Asbury, {John B.} and Giebink, {Noel Christopher}",

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T1 - Random lasing in organo-lead halide perovskite microcrystal networks

AU - Dhanker, R.

AU - Brigeman, A. N.

AU - Larsen, A. V.

AU - Stewart, R. J.

AU - Asbury, John B.

AU - Giebink, Noel Christopher

PY - 2014/10/13

Y1 - 2014/10/13

N2 - We report optically pumped random lasing in planar methylammonium lead iodide perovskite microcrystal networks that form spontaneously from spin coating. Low thresholds (<200 μJ/cm2) and narrow linewidths (Δλ < 0.5 nm) reflect lasing from closed quasi-modes that result from ballistic waveguiding in linear network segments linked by scattering at the junctions. Spatio-spectral imaging indicates that these quasi-modes extend over lateral length scales >100 μm and spatially overlap with one another, resulting in chaotic pulse-to-pulse intensity fluctuations due to gain competition. These results demonstrate this class of hybrid organic-inorganic perovskite as a platform to study random lasing with well-defined, low-level disorder, and support the potential of these materials for use in semiconductor laser applications.

AB - We report optically pumped random lasing in planar methylammonium lead iodide perovskite microcrystal networks that form spontaneously from spin coating. Low thresholds (<200 μJ/cm2) and narrow linewidths (Δλ < 0.5 nm) reflect lasing from closed quasi-modes that result from ballistic waveguiding in linear network segments linked by scattering at the junctions. Spatio-spectral imaging indicates that these quasi-modes extend over lateral length scales >100 μm and spatially overlap with one another, resulting in chaotic pulse-to-pulse intensity fluctuations due to gain competition. These results demonstrate this class of hybrid organic-inorganic perovskite as a platform to study random lasing with well-defined, low-level disorder, and support the potential of these materials for use in semiconductor laser applications.

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Random lasing in organo-lead halide perovskite microcrystal networks

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