Optically Pumped Lasing from Hybrid Perovskite Light-Emitting Diodes

Hoyeon Kim, Kwangdong Roh, John P. Murphy, Lianfeng Zhao, William B. Gunnarsson, Elena Longhi, Stephen Barlow, Seth R. Marder, Barry P. Rand, Noel C. Giebink

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4 Scopus citations

Abstract

Electrically pumped lasing from hybrid organic–inorganic metal-halide perovskite semiconductors could lead to nonepitaxial diode lasers that are tunable throughout the visible and near-infrared spectrum; however, a viable laser diode architecture has not been demonstrated to date. Here, an important step toward this goal is achieved by demonstrating two distinct distributed feedback light-emitting diode architectures that achieve low threshold, optically pumped lasing. Bottom- and top-emitting perovskite light-emitting diodes are fabricated on glass and Si substrates, respectively, using a polydimethylsiloxane stamp in the latter case to nanoimprint a second-order distributed feedback grating directly into the methylammonium lead iodide active layer. The devices exhibit room temperature thresholds as low as ≈6 µJ cm−2, a peak external quantum efficiency of ≈0.1%, and a maximum current density of ≈2 A cm−2 that is presently limited by degradation associated with excessive leakage current. In this low current regime, electrical injection does not adversely affect the optical pump threshold, leading to a projected threshold current density of ≈2 kA cm−2. Operation at low temperature can significantly decrease this threshold, but must overcome extrinsic carrier freeze-out in the doped organic transport layers to maintain a reasonable drive voltage.

Original languageEnglish (US)
Article number1901297
JournalAdvanced Optical Materials
Volume8
Issue number1
DOIs
StatePublished - Jan 1 2020

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Atomic and Molecular Physics, and Optics

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    Kim, H., Roh, K., Murphy, J. P., Zhao, L., Gunnarsson, W. B., Longhi, E., Barlow, S., Marder, S. R., Rand, B. P., & Giebink, N. C. (2020). Optically Pumped Lasing from Hybrid Perovskite Light-Emitting Diodes. Advanced Optical Materials, 8(1), [1901297]. https://doi.org/10.1002/adom.201901297