Journal article
Gain enhancement of perovskite nanosheets by a patterned waveguide: excitation and temperature dependence of gain saturation
- Abstract:
- Optical gain enhancement of two-dimensional CsPbBr3 nanosheets was studied when the amplified spontaneous emission is guided by a patterned structure of polyurethane-acrylate. Given the uncertainties and pitfalls in retrieving a gain coefficient from the variable stripe length method, a gain contour g(ℏω, x) was obtained in the plane of spectrum energy (ℏω) and stripe length (x), whereby an average gain was obtained, and gain saturation was analysed. Excitation and temperature dependence of the gain contour show that the waveguide enhances both gain and thermal stability due to the increased optical confinement and heat dissipation, and the gain origins were attributed to the two-dimensional excitons and the localized states.
- Publication status:
- Published
- Peer review status:
- Peer reviewed
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(Preview, Version of record, pdf, 2.0MB, Terms of use)
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- Publisher copy:
- 10.1038/s41377-023-01313-0
Authors
- Publisher:
- Springer Nature
- Journal:
- Light: Science & Applications More from this journal
- Volume:
- 12
- Issue:
- 1
- Article number:
- 285
- Place of publication:
- England
- Publication date:
- 2023-11-24
- Acceptance date:
- 2023-10-22
- DOI:
- EISSN:
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2047-7538
- Pmid:
-
38001058
- Language:
-
English
- Keywords:
- Pubs id:
-
1572641
- Local pid:
-
pubs:1572641
- Deposit date:
-
2023-11-30
Terms of use
- Copyright holder:
- Kim et al.
- Copyright date:
- 2023
- Rights statement:
- © The Author(s) 2023. Open Access. This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons license and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder.
- Licence:
- CC Attribution (CC BY)
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