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

Research output: Contribution to journalArticle

79 Citations (Scopus)

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 languageEnglish (US)
Article number151112
JournalApplied Physics Letters
Volume105
Issue number15
DOIs
StatePublished - Oct 13 2014

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microcrystals
halides
lasing
laser applications
pulses
iodides
coating
platforms
semiconductor lasers
disorders
thresholds

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy (miscellaneous)

Cite this

Dhanker, R. ; Brigeman, A. N. ; Larsen, A. V. ; Stewart, R. J. ; Asbury, John B. ; Giebink, Noel Christopher. / Random lasing in organo-lead halide perovskite microcrystal networks. In: Applied Physics Letters. 2014 ; Vol. 105, No. 15.
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Random lasing in organo-lead halide perovskite microcrystal networks. / Dhanker, R.; Brigeman, A. N.; Larsen, A. V.; Stewart, R. J.; Asbury, John B.; Giebink, Noel Christopher.

In: Applied Physics Letters, Vol. 105, No. 15, 151112, 13.10.2014.

Research output: Contribution to journalArticle

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