High-Q, Low-Threshold Monolithic Perovskite Thin-Film Vertical-Cavity Lasers.
basic_science · Level V
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- Record sourced from PubMed, PMID 28211117.
- Also identified by DOI 10.1002/adma.201604781.
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Abstract
A vertical-cavity surface-emitting perovskite laser is achieved using a microcavity configuration where CH<sub>3</sub> NH<sub>3</sub> PbI<sub>3</sub> thin solid films are embedded within a custom GaN-based high-quality (Q-factor) resonator. This single-mode perovskite laser reaches a low threshold (≈7.6 µJ cm<sup>-2</sup> ) at room temperature and emits spatially coherent Gaussian laser beams. The devices allow direct access to the study of perovskite gain dynamics and material robustness.