AgCl-doped CdSe quantum dots with near-IR photoluminescence
We report the synthesis of colloidal CdSe quantum dots doped with a novel Ag precursor: AgCl. The addition of AgCl causes dramatic changes in the morphology of synthesized nanocrystals from spherical nanoparticles to tetrapods and finally to large ellipsoidal nanoparticles. Ellipsoidal nanoparticles...
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doaj-9143ddab600145d989bdb348131505842020-11-25T00:03:25ZengBeilstein-InstitutBeilstein Journal of Nanotechnology2190-42862017-05-01811156116610.3762/bjnano.8.1172190-4286-8-117AgCl-doped CdSe quantum dots with near-IR photoluminescencePavel A. Kotin0Sergey S. Bubenov1Natalia E. Mordvinova2Sergey G. Dorofeev3Department of Chemistry, Lomonosov Moscow State University, 1 building 3 Leninskie Gory, Moscow 119991, RussiaDepartment of Chemistry, Lomonosov Moscow State University, 1 building 3 Leninskie Gory, Moscow 119991, RussiaDepartment of Chemistry, Lomonosov Moscow State University, 1 building 3 Leninskie Gory, Moscow 119991, RussiaDepartment of Chemistry, Lomonosov Moscow State University, 1 building 3 Leninskie Gory, Moscow 119991, RussiaWe report the synthesis of colloidal CdSe quantum dots doped with a novel Ag precursor: AgCl. The addition of AgCl causes dramatic changes in the morphology of synthesized nanocrystals from spherical nanoparticles to tetrapods and finally to large ellipsoidal nanoparticles. Ellipsoidal nanoparticles possess an intensive near-IR photoluminescence ranging up to 0.9 eV (ca. 1400 nm). In this article, we explain the reasons for the formation of the ellipsoidal nanoparticles as well as the peculiarities of the process. The structure, Ag content, and optical properties of quantum dots are also investigated. The optimal conditions for maximizing both the reaction yield and IR photoluminescence quantum yield are found.https://doi.org/10.3762/bjnano.8.117Ag dopingCdSe quantum dotsdoped semiconductor nanocrystalsIR photoluminescencetetrapods |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Pavel A. Kotin Sergey S. Bubenov Natalia E. Mordvinova Sergey G. Dorofeev |
spellingShingle |
Pavel A. Kotin Sergey S. Bubenov Natalia E. Mordvinova Sergey G. Dorofeev AgCl-doped CdSe quantum dots with near-IR photoluminescence Beilstein Journal of Nanotechnology Ag doping CdSe quantum dots doped semiconductor nanocrystals IR photoluminescence tetrapods |
author_facet |
Pavel A. Kotin Sergey S. Bubenov Natalia E. Mordvinova Sergey G. Dorofeev |
author_sort |
Pavel A. Kotin |
title |
AgCl-doped CdSe quantum dots with near-IR photoluminescence |
title_short |
AgCl-doped CdSe quantum dots with near-IR photoluminescence |
title_full |
AgCl-doped CdSe quantum dots with near-IR photoluminescence |
title_fullStr |
AgCl-doped CdSe quantum dots with near-IR photoluminescence |
title_full_unstemmed |
AgCl-doped CdSe quantum dots with near-IR photoluminescence |
title_sort |
agcl-doped cdse quantum dots with near-ir photoluminescence |
publisher |
Beilstein-Institut |
series |
Beilstein Journal of Nanotechnology |
issn |
2190-4286 |
publishDate |
2017-05-01 |
description |
We report the synthesis of colloidal CdSe quantum dots doped with a novel Ag precursor: AgCl. The addition of AgCl causes dramatic changes in the morphology of synthesized nanocrystals from spherical nanoparticles to tetrapods and finally to large ellipsoidal nanoparticles. Ellipsoidal nanoparticles possess an intensive near-IR photoluminescence ranging up to 0.9 eV (ca. 1400 nm). In this article, we explain the reasons for the formation of the ellipsoidal nanoparticles as well as the peculiarities of the process. The structure, Ag content, and optical properties of quantum dots are also investigated. The optimal conditions for maximizing both the reaction yield and IR photoluminescence quantum yield are found. |
topic |
Ag doping CdSe quantum dots doped semiconductor nanocrystals IR photoluminescence tetrapods |
url |
https://doi.org/10.3762/bjnano.8.117 |
work_keys_str_mv |
AT pavelakotin agcldopedcdsequantumdotswithnearirphotoluminescence AT sergeysbubenov agcldopedcdsequantumdotswithnearirphotoluminescence AT nataliaemordvinova agcldopedcdsequantumdotswithnearirphotoluminescence AT sergeygdorofeev agcldopedcdsequantumdotswithnearirphotoluminescence |
_version_ |
1725434154235985920 |