Open AccessLow amplified spontaneous emission threshold from 2-thiophenemethylammonium quasi-2D perovskites via phase engineering
Author(s) -
Chaochao Qin,
Shichen Zhang,
Zhongpo Zhou,
Tao Han,
Jian Song,
Shuhong Ma,
Jia Guangrui,
Zhaoyong Jiao,
ZunLue Zhu,
Xumin Chen,
Yuanzhi Jiang
Publication year - 2022
Publication title -
optics express
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.394
H-Index - 271
ISSN - 1094-4087
DOI - 10.1364/oe.471849
Subject(s) - lasing threshold , materials science , amplified spontaneous emission , perovskite (structure) , laser linewidth , spontaneous emission , laser , optoelectronics , phase (matter) , active laser medium , stimulated emission , nanocrystal , continuous wave , optics , nanotechnology , laser power scaling , physics , chemistry , crystallography , wavelength , quantum mechanics
Quasi-2D Ruddlesden-Popper perovskites attract great attention as an optical gain media in lasing applications due to their excellent optoelectronic properties. Herein, a novel quasi-2D Ruddlesden-Popper perovskite based on 2-thiophenemethylammonium (ThMA) is synthesized by a facile solution-processed method. In addition, an anti-solvent treatment method is proposed to tune the phase distribution, and preferential orientation of quasi-2D (ThMA) 2 Csn -1 PbnBr 3n+1 thin films. The large-n-dominated narrow domain distribution improves the energy transfer efficiency from small-n to large-n phases. Also, the highly oriented nanocrystals facilitate the efficient Förster energy transfer, beneficial for the carrier population transfer. Furthermore, a green amplified spontaneous emission with a low threshold of 13.92 µJ/cm 2 is obtained and a single-mode vertical-cavity laser with an 0.4 nm linewidth emission is fabricated. These findings provide insights into the design of the domain distribution to realize low-threshold multicolor continuous-wave or electrically driven quasi-2D perovskites laser.