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Related Experiment Video

Updated: Jun 24, 2025

Low Pressure Vapor-assisted Solution Process for Tunable Band Gap Pinhole-free Methylammonium Lead Halide Perovskite Films

Low Pressure Vapor-assisted Solution Process for Tunable Band Gap Pinhole-free Methylammonium Lead Halide Perovskite Films

Published on: September 8, 2017

High-quality integratable microlasers from scalable perovskite heterostructures enabled by solution-phase processing.

Yinjuan Ren, Yan Zhou, Likuan Feng

|June 11, 2024

Summary

This summary is machine-generated.

Researchers developed low-threshold, tunable microlasers using novel perovskite heterostructures. These easily integrated semiconductor lasers are ideal for advanced photonic applications.

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Facile Synthesis of Colloidal Lead Halide Perovskite Nanoplatelets via Ligand-Assisted Reprecipitation

Published on: October 1, 2019

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Last Updated: Jun 24, 2025

Low Pressure Vapor-assisted Solution Process for Tunable Band Gap Pinhole-free Methylammonium Lead Halide Perovskite Films

Low Pressure Vapor-assisted Solution Process for Tunable Band Gap Pinhole-free Methylammonium Lead Halide Perovskite Films

Published on: September 8, 2017

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Published on: April 11, 2025

Facile Synthesis of Colloidal Lead Halide Perovskite Nanoplatelets via Ligand-Assisted Reprecipitation

Facile Synthesis of Colloidal Lead Halide Perovskite Nanoplatelets via Ligand-Assisted Reprecipitation

Published on: October 1, 2019

Area of Science:

Materials Science
Optoelectronics
Photonics

Background:

Integrated photonics and optoelectronics require high-performance microlasers.
Developing such microlasers with desirable properties remains a challenge.

Purpose of the Study:

To mass-produce low-threshold, wavelength-tunable microlasers.
To create microlasers readily integratable with optical fiber platforms.

Main Methods:

A two-step solution-phase approach was employed.
A novel semiconductor heterostructure from halide perovskites was formed.
In-situ optical characterization was used to study heterostructure formation.

Main Results:

A novel perovskite heterostructure with quasi-free-standing and highly emissive properties was successfully fabricated.
Lateral perovskite heterostructures formed via sequential reactions driven by surface energy contrast.
The heterostructure microlasers demonstrated low-threshold and broadband tunable lasing.

Conclusions:

The developed perovskite heterostructure microlasers offer efficient spatial light conversion and facile composition tunability.
These microlasers are competitive candidates for photonic integration, as shown by the laser-on-fiber configuration.