The upconversion quantum yield (UCQY): a review to standardize the measurement methodology, improve comparability, and define efficiency standards

Autor: Callum M. S. Jones, Anna Gakamsky, Jose Marques-Hueso

Publikováno v: Science and Technology of Advanced Materials, Vol 22, Iss 1, Pp 810-848 (2021)

Advancing the upconversion materials field relies on accurate and contrastable photoluminescence efficiency measurements, which are characterised by the absolute upconversion quantum yield (UCQY). However, the methodology for such measurements cannot

Externí odkaz: https://doaj.org/article/30acf0d1edfb46e6ad1ac6ba7f62cd5b

Ultrafast photochemistry produces superbright short-wave infrared dots for low-dose in vivo imaging

Autor: Harrisson D. A. Santos, Irene Zabala Gutiérrez, Yingli Shen, José Lifante, Erving Ximendes, Marco Laurenti, Diego Méndez-González, Sonia Melle, Oscar G. Calderón, Enrique López Cabarcos, Nuria Fernández, Irene Chaves-Coira, Daniel Lucena-Agell, Luis Monge, Mark D. Mackenzie, José Marqués-Hueso, Callum M. S. Jones, Carlos Jacinto, Blanca del Rosal, Ajoy K. Kar, Jorge Rubio-Retama, Daniel Jaque

Publikováno v: Nature Communications, Vol 11, Iss 1, Pp 1-12 (2020)

Deep tissue imaging has been limited by the low brightness of probes emitting in the second near-infrared window. Here, the authors use femtosecond laser irradiation to grow a protective shell on Ag2S nanoparticles, achieving 80-fold quantum yield en

Externí odkaz: https://doaj.org/article/8f21713af2154304b4495a616e52e028

8,8'-(Benzo[c][1,2,5]thiadiazole-4,7-diyl)bis(quinolin-4(1H)-one): A Twisted Photosensitizer with AIE Properties

Autor: Gareth O. Lloyd, Emmanouil Broumidis, Callum M. S. Jones, Maria Koyioni, Panayiotis A. Koutentis, Jose Marques-Hueso, Andreas Kourtellaris, Filipe Vilela

A new benzothiadiazole (BTZ) luminogen is prepared via the Suzuki–Miyaura Pd-catalysed C–C cross-coupling of 8-iodoquinolin-4(1H)-one and a BTZ bispinacol boronic ester. The rapid reaction (5 min) affords the air-, thermo-, and photostable produc

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::cb3fba71c06fbd3b846e739c7a91643b
https://eprints.lincoln.ac.uk/id/eprint/46321/1/180821_EB.docx

Optimized photoluminescence quantum yield in upconversion composites considering the scattering, inner-filter effects, thickness, self-absorption, and temperature

Autor: Karl Krämer, Jose Marques-Hueso, Callum M. S. Jones, Daniel Biner, Stavros Misopoulos

Publikováno v: Scientific Reports
Jones, Callum M. S.; Biner, Daniel; Misopoulos, Stavros; Krämer, Karl W.; Marques-Hueso, Jose (2021). Optimized photoluminescence quantum yield in upconversion composites considering the scattering, inner-filter effects, thickness, self-absorption, and temperature. Scientific reports, 11(1), p. 13910. Springer Nature 10.1038/s41598-021-93400-8
Scientific Reports, Vol 11, Iss 1, Pp 1-10 (2021)

Optimizing upconversion (UC) composites is challenging as numerous effects influence their unique emission mechanism. Low scattering mediums increase the number of dopants excited, however, high scattering mediums increase the UC efficiency due to it

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::7ee79d56038b82b5c03bf12cb5b376fe
https://pubmed.ncbi.nlm.nih.gov/34230548

Spectral characterization of LiYbF

Autor: Artiom, Skripka, Ting, Cheng, Callum M S, Jones, Riccardo, Marin, Jose, Marques-Hueso, Fiorenzo, Vetrone

Publikováno v: Nanoscale. 12(33)

In light of the recent developments on Yb

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=pmid________::7291b385df8678045b92f15a901003dd
https://pubmed.ncbi.nlm.nih.gov/32812995