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Excitation Pulse Duration Response of Upconversion Nanoparticles and Its Applications.
Labrador-Páez, Lucía; Kostiv, Uliana; Liu, Qingyun; Li, Yuanyuan; Ågren, Hans; Widengren, Jerker; Liu, Haichun.
Afiliação
  • Labrador-Páez L; Department of Applied Physics, KTH Royal Institute of Technology, SE-10691Stockholm, Sweden.
  • Kostiv U; Department of Applied Physics, KTH Royal Institute of Technology, SE-10691Stockholm, Sweden.
  • Liu Q; Department of Theoretical Chemistry and Biology, KTH Royal Institute of Technology, SE-10691Stockholm, Sweden.
  • Li Y; Wallenberg Wood Science Center, Department of Fibre and Polymer Technology, KTH Royal Institute of Technology, SE-10691Stockholm, Sweden.
  • Ågren H; Department of Physics and Astronomy, Uppsala University, UppsalaSE-75120, Sweden.
  • Widengren J; Department of Applied Physics, KTH Royal Institute of Technology, SE-10691Stockholm, Sweden.
  • Liu H; Department of Applied Physics, KTH Royal Institute of Technology, SE-10691Stockholm, Sweden.
J Phys Chem Lett ; 13(48): 11208-11215, 2022 Dec 08.
Article em En | MEDLINE | ID: mdl-36445720
Lanthanide-doped upconversion nanoparticles (UCNPs) have rich photophysics exhibiting complex luminescence kinetics. In this work, we thoroughly investigated the luminescence response of UCNPs to excitation pulse durations. Analyzing this response opens new opportunities in optical encoding/decoding and the assignment of transitions to emission peaks and provides advantages in applications of UCNPs, e.g., for better optical sectioning and improved luminescence nanothermometry. Our work shows that monitoring the UCNP luminescence response to excitation pulse durations (while keeping the duty cycle constant) by recording the average luminescence intensity using a low-time resolution detector such as a spectrometer offers a powerful approach for significantly extending the utility of UCNPs.

Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Idioma: En Revista: J Phys Chem Lett Ano de publicação: 2022 Tipo de documento: Article País de afiliação: Suécia País de publicação: Estados Unidos

Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Idioma: En Revista: J Phys Chem Lett Ano de publicação: 2022 Tipo de documento: Article País de afiliação: Suécia País de publicação: Estados Unidos