Open AccessLocalized surface plasmon for enhanced lasing performance in solution-processed perovskites
Author(s) -
Tsung Sheng Kao,
Kuo Bin Hong,
Yu Hsun Chou,
Jiong Fu Huang,
FangChung Chen,
Tien−Chang Lu
Publication year - 2016
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.24.020696
Subject(s) - lasing threshold , perovskite (structure) , materials science , optoelectronics , halide , plasmon , surface plasmon , laser , layer (electronics) , exciton , optics , nanotechnology , inorganic chemistry , chemical engineering , wavelength , chemistry , physics , quantum mechanics , engineering
A promising method to promote the lasing performance of solution-processed organic-inorganic lead-halide perovskites has been demonstrated. With the adding Ag and PMMA thin films, the threshold excitation power for low-temperature lasing action in perovskites can be greatly reduced by over two orders of magnitude than that acquired in bare perovskite layers, ascribing to the strong exciton-plasmon coupling between the Ag and perovskite films. Also, the PMMA layer can be exploited to prevent the perovskite degradation from the hydrolysis in ambient environment, achieving long-lasting light-emitting performance. The advantages exhibited by the hybrid perovskite configuration would be very promising in making practical laser devices.