Optical Properties of Perovskite-Organic Multiple Quantum Wells

Research output: Contribution to journalResearch articleContributedpeer-review



A comprehensive study of the optical properties of CsPbBr3 perovskite multiple quantum wells (MQW) with organic barrier layers is presented. Quantum confinement is observed by a blue-shift in absorption and emission spectra with decreasing well width and agrees well with simulations of the confinement energies. A large increase of emission intensity with thinner layers is observed, with a photoluminescence quantum yield up to 32 times higher than that of bulk layers. Amplified spontaneous emission (ASE) measurements show very low thresholds down to 7.3 µJ cm−2 for a perovskite thickness of 8.7 nm, significantly lower than previously observed for CsPbBr3 thin-films. With their increased photoluminescence efficiency and low ASE thresholds, MQW structures with CsPbBr3 are excellent candidates for high-efficiency perovskite-based LEDs and lasers.


Original languageEnglish
Article number2200379
Pages (from-to)e2200379
JournalAdvanced science
Issue number24
Publication statusPublished - 25 Aug 2022

External IDs

PubMed 35780500
Mendeley 049b54fb-fa7f-3bbc-aba4-24f529efff06
ORCID /0000-0002-4112-6991/work/142254746



  • amplified spontaneous emission, confinement, luminescence, perovskite, quantum well, simulation, vacuum deposition, X-ray reflectivity