Halide Perovskite Excitonic Diffraction Grating
| Title: | Halide Perovskite Excitonic Diffraction Grating |
|---|---|
| Authors: | Mamaeva, Mariia P.; Lozhkin, Maksim S.; Shurukhina, Anna V.; Stroganov, Boris V.; Emeline, Alexei V.; Kapitonov, Yury V. |
| Contributors: | Ministry of Science and Higher Education of the Russian Federation |
| Source: | Advanced Optical Materials ; volume 11, issue 5 ; ISSN 2195-1071 2195-1071 |
| Publisher Information: | Wiley |
| Publication Year: | 2022 |
| Collection: | Wiley Online Library (Open Access Articles via Crossref) |
| Description: | Resonant diffractive optical elements can be used to create the desired spatial and angular distribution of scattered light in a narrow wavelength range. Exciton resonance could help to make such elements active. Here an exciton diffraction grating made from fully inorganic CsPbBr 3 halide perovskite is demonstrated. Spatial modulation of excitonic properties of the single crystal is achieved using local defect formation by 30 keV Ga + focused ion irradiation with low irradiation dose 10 14 cm −2 . Such a low dose prevents the appearance of non‐resonant diffraction since no sample milling occurs. The observed diffraction reflex has a maximum efficiency of 2.3 × 10 −3 at the free exciton resonance and 1.7 meV spectral width. The temperature, angular, and spectral properties of resonant diffraction are studied. The possibility of creating exciton diffraction gratings based on halide perovskites is one more confirmation of their applicability as a new material for information photonics. |
| Document Type: | article in journal/newspaper |
| Language: | English |
| DOI: | 10.1002/adom.202202152 |
| Availability: | https://doi.org/10.1002/adom.202202152; https://onlinelibrary.wiley.com/doi/pdf/10.1002/adom.202202152; https://onlinelibrary.wiley.com/doi/full-xml/10.1002/adom.202202152; https://advanced.onlinelibrary.wiley.com/doi/pdf/10.1002/adom.202202152 |
| Rights: | http://onlinelibrary.wiley.com/termsAndConditions#vor |
| Accession Number: | edsbas.33A2527D |
| Database: | BASE |