Data Publication
Responsive optical materials based on ligand-free perovskite quantum dots embedded in mesoporous scaffolds
Romero-P??Rez, Carlos | Zanetta, Andrea | Fern??Ndez-Delgado, Natalia | Herrera Collado, Miriam | Hern??Ndez-Saz, Jes??S | Molina, Sergio I. | Cali??, Laura | Calvo, Mauricio E. | M??Guez, Hern??N
DIGITAL.CSIC
(2022)
Descriptions
Herein we show that dispersing inorganic Cesium Lead Bromide (CsPbBr3) perovskite quantum dots (QDs) in optical quality films, possessing an accessible and controlled pore size distribution, gives rise to fluorescent materials with a controlled and highly sensitive response to ambient changes. A scaffold based synthetic approach is employed to attain ligand-free QDs, whose pristine surface endows them with high sensitivity to the presence of different vapors in their vicinity. At the same time, the void network of the host offers a means to gradually expose the embedded QDs to such vapors. Under these conditions, the luminescent response of the QDs is mediated by the mesostructure of the matrix, which determines the rate at which vapor molecules will adsorb onto the pore walls and, eventually, condensate, filling the void space. With luminescence quantum yields as high as 60%, scaffold supported ligand-free perovskite nanocrystals display intense photoemission signals over the whole process, as well as high photo and chemical stability, which allows illuminating them for long periods of time and recovering the original response upon desorption of the condensed phase. The results herein presented open a new route to explore the application of perovskite QDs based materials in sensing.
Keywords
Originally assigned keywords
MSL enriched keywords
Metadata
MSL enriched sub domains
Source
Source publisher
| DIGITAL.CSIC |
DOI
| 10.20350/digitalcsic/14818 |
Creators
| Romero-P??Rez, Carlos |
| Personal |
| Zanetta, Andrea |
| Personal |
| Fern??Ndez-Delgado, Natalia |
| Personal |
| Herrera Collado, Miriam |
| Personal |
| Hern??Ndez-Saz, Jes??S |
| Personal |
| Molina, Sergio I. |
| Personal |
| Cali??, Laura |
| Personal |
| Calvo, Mauricio E. |
| Personal |
| M??Guez, Hern??N |
| Personal |
Contributors
| Digital.CSIC |
| Digital.CSIC |
Citation
Romero-P??Rez, C., Zanetta, A., Fern??Ndez-Delgado, N., Herrera Collado, M., Hern??Ndez-Saz, J. S., Molina, S. I., Cali??, L., Calvo, M. E., & M??Guez, H. N. (2022). Responsive optical materials based on ligand-free perovskite quantum dots embedded in mesoporous scaffolds [Data set]. DIGITAL.CSIC. https://doi.org/10.20350/DIGITALCSIC/14818
References
Dates
| Accepted | 2022-12-14 |
| Available | 2022-12-14 |
| Created | 2022-11-29 |
| Issued | 2022-12-14 |
Language
en
Funding References
| Funder Name | Financial support of the Spanish Ministry of Science and Innovation under grant PID2020-116593RB-I00, funded by MCIN/AEI/10.13039/501100011033, and of the Junta de Andaluc??a under grant P18-RT-2291 (FEDER/UE) is gratefully acknowledged. L.C. thanks Junta de Andaluc??a and the European Regional Development Funds program (EU-FEDER) for financial support under a talent attraction program (DOC_00220). Also, N.F.D. acknowledges co-funding by European Social Fund and Junta de Andaluc??a for PAIDI2020 (DOC_01244). |
Rights
| Name | openAccess |
| Name | Creative Commons Attribution Non Commercial 4.0 International |
| URI | https://creativecommons.org/licenses/by-nc/4.0/legalcode |
| Identifier | cc-by-nc-4.0 |
| Identifier Scheme | SPDX |
| Scheme URI | https://spdx.org/licenses/ |
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