Understanding the Shell Passivation in Ln <sup>3+</sup> ?Doped Luminescent Nanocrystals
نویسندگان
چکیده
Shell Passivation Effect The effectiveness of shell passivation in alleviating the surface quenching Ln3+-doped luminescent nanocrystals has long been approved, yet understanding mechanisms remains elusive. In article number 2100194, Rui Shi, Carlos D. S. Brites, and Luís review context debates on this topic emphasize impacts brought by chemical disorders, which provides new perspectives for general cases.
منابع مشابه
Incorporation of Ln-Doped LaPO4 Nanocrystals as Luminescent Markers in Silica Nanoparticles
Lanthanide ions are promising for the labeling of silica nanoparticles with a specific luminescent fingerprint due to their sharp line emission at characteristic wavelengths. With the increasing use of silica nanoparticles in consumer products, it is important to label silica nanoparticles in order to trace the biodistribution, both in the environment and living organisms.In this work, we synth...
متن کاملLuminescent and Ferromagnetic CdS:Mn2+/C Core-Shell Nanocrystals
Department of Chemical Sciences, Indian Institute of Science Education and Research, Kolkata, Mohanpur-741252, Nadia, W.B., India, Department of Physics, The Ilse Katz Institute for Nanoscience and Nanotechnology, Ben-Gurion UniVersity of the NegeV, P.O. Box 653, Beer-SheVa 84105, Israel, Department of Chemistry and Kanbar Laboratory for Nanomaterials at the Bar-Ilan UniVersity Center for AdVan...
متن کاملEnhanced visible and near infrared emissions via Ce(3+) to Ln(3+) energy transfer in Ln(3+)-doped CeF3 nanocrystals (Ln = Nd and Sm).
We report the enhancement of both visible and near infrared (NIR) emissions from Nd(3+) ions via Ce(3+) sensitization in colloidal nanocrystals for the first time. This is achieved in citrate capped Nd(3+)-doped CeF3 nanocrystals under ultraviolet (UV) irradiation (λex = 282 nm). The lasing transition ((4)F3/2 → (4)I11/2) at 1064 nm from Nd(3+)-doped CeF3 nanocrystals has much higher emission i...
متن کاملA strategy to protect and sensitize near-infrared luminescent Nd3+ and Yb3+: organic tropolonate ligands for the sensitization of Ln(3+)-doped NaYF4 nanocrystals.
A strategy to sensitize and protect near-infrared (NIR) emitting Nd3+ and Yb3+ is presented. Combining protection provided by the inorganic matrix of NaYF4 nanocrystals and sensitization from tropolonate ligands capped on their surface, the lanthanide cation centered luminescence was observed through the ligand excitation. The extended lanthanide luminescence lifetimes indicate the success of t...
متن کاملUnderstanding the Effect of Hydrogen Surface Passivation and Etching on the Shape of Silicon Nanocrystals
One of the significant challenges in the use of nanocrystals, is the control of crystal shape when grown from the gas-phase. Recently, the Kortshagen group has succeeded in generating cubic Si nanocrystals in a nonequilibrium plasma. In this paper we consider the energetics of various shaped Si nanocrystals, and the role that hydrogen surface termination plays. We consider cube, truncated octah...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Small structures
سال: 2022
ISSN: ['2688-4062']
DOI: https://doi.org/10.1002/sstr.202270010