A ratiometric luminescence thermometer based on lanthanide encapsulated complexes
- Title
- A ratiometric luminescence thermometer based on lanthanide encapsulated complexes
- Creator
- Sharma A.R.; Singh A.R.; Kongasseri A.A.; Garain S.; Mariella Babu A.; Lonibala R.; Laishram R.
- Description
- Lanthanide-containing complexes have been widely developed as ratiometric luminescence thermometers, which are non-invasive, contactless and accurate. The synthesis of these Ln complexes generally requires high temperatures, multiple steps and other harsh conditions. Moreover, bimetallic lanthanide complexes, which have been reported to be better thermometers, are even more challenging to synthesize. This complexity can be simplified by preparing a host-guest complex of lanthanides. In this work, Tb or both Tb and Eu are encapsulated in an MOF host, making them emissive. The ratio of Tb/Eu was also easily tuned by simply changing their ratio in the solution, resulting in a tunable emission. Accordingly, we were able to synthesise both the emissive Tb complex and Tb/Eu complexes at different ratios using a single host. The complexes were found to be suitable as ratiometric luminescent thermometers in the temperature range of 160-380 K, with reasonably good sensitivity and uncertainty. The thermometer's sensitivity and uncertainty were significantly improved using bimetallic Tb and Eu host-guest complexes. Calculations using the host and Eu emission ratio were found to provide better thermometer parameters than the commonly reported Tb and Eu emission ratio. Thus, using a single host, we were able to synthesise different lanthanide complexes that can sense temperature, and we improved the thermometer parameters by incorporating multiple lanthanides in a single host. This research will enable the scientific community to reexamine the applicability of unexplored host-guest lanthanide complexes. 2025 The Royal Society of Chemistry.
- Source
- Dalton Transactions, Vol-54, No. 4, pp. 1377-1383.
- Date
- 2024-01-01
- Publisher
- Royal Society of Chemistry
- Coverage
- Sharma A.R., Department of Chemistry, Manipur University, Manipur, 795003, India; Singh A.R., Department of Chemistry, Manipur University, Manipur, 795003, India; Kongasseri A.A., New Chemistry Unit and School of Advanced Materials, Jawaharlal Nehru Centre for Advanced Scientific Research (JNCASR) Jakkur, Bangalore, 560064, India; Garain S., University of Wzburg, Wzburg, Germany; Mariella Babu A., Christ University, Bengaluru, 560029, India; Lonibala R., Department of Chemistry, Manipur University, Manipur, 795003, India; Laishram R., Department of Chemistry, Manipur University, Manipur, 795003, India
- Rights
- Restricted Access
- Relation
- ISSN: 14779226; PubMed ID: 39523808; CODEN: DTARA
- Format
- Online
- Language
- English
- Type
- Article
Collection
Citation
Sharma A.R.; Singh A.R.; Kongasseri A.A.; Garain S.; Mariella Babu A.; Lonibala R.; Laishram R., “A ratiometric luminescence thermometer based on lanthanide encapsulated complexes,” CHRIST (Deemed To Be University) Institutional Repository, accessed February 24, 2025, https://archives.christuniversity.in/items/show/12791.