Detail publikace

Preparation of GaN Nanocrystals with Single Ag Cores

ČALKOVSKÝ, V. MACH, J. BARTOŠÍK, M. PIASTEK, J. KOSTKA, M. MIKERÁSEK, V. SUPALOVÁ, L. KONEČNÝ, M. KVAPIL, M. HORÁK, M. ŠIKOLA, T.

Originální název

Preparation of GaN Nanocrystals with Single Ag Cores

Typ

článek v časopise ve Web of Science, Jimp

Jazyk

angličtina

Originální abstrakt

We report on a low-temperature hybrid method for the preparation of GaN nanocrystals (NCs) with embedded single Ag cores. GaN growth is realized by a physical vapor deposition of Ga atoms on a SiO2 substrate with colloidal Ag nanoparticles on its surface, assisted with an ultralow energy (50 eV) nitrogen-ion-beam bombardment at temperatures being significantly lower (T < 350 degrees C) than in conventional GaN deposition techniques (e.g., MOCVD, 1000 degrees C). We call this method Low Temperature Droplet Epitaxy (LTDE). The low deposition temperature allows GaN nanocrystals to be prepared with embedded metal-aluminum colloidal nanoparticles as their cores. A combination of STEM, SEM, scanning Auger microscopy, XPS, and AFM was applied to characterize semiconductor and metal nanoparticles. By their implementation, we optimized morphology, structure, and chemical composition of these nanocrystals and, consequently, demonstrated their enhanced photoluminescent properties.

Klíčová slova

LIGHT-EMITTING-DIODES; SPECTROSCOPY; SILVER; ENHANCEMENT; AU

Autoři

ČALKOVSKÝ, V.; MACH, J.; BARTOŠÍK, M.; PIASTEK, J.; KOSTKA, M.; MIKERÁSEK, V.; SUPALOVÁ, L.; KONEČNÝ, M.; KVAPIL, M.; HORÁK, M.; ŠIKOLA, T.

Vydáno

12. 9. 2024

Nakladatel

AMER CHEMICAL SOC

Místo

WASHINGTON

ISSN

1528-7505

Periodikum

Crystal Growth and Design

Ročník

24

Číslo

19

Stát

Spojené státy americké

Strany od

7904

Strany do

7909

Strany počet

6

URL

https://pubs.acs.org/doi/10.1021/acs.cgd.4c00776

BibTex

@article{BUT196734,
  author="Vojtěch {Čalkovský} and Jindřich {Mach} and Miroslav {Bartošík} and Jakub {Piastek} and Marek {Kostka} and Vojtěch {Mikerásek} and Linda {Supalová} and Martin {Konečný} and Michal {Kvapil} and Michal {Horák} and Tomáš {Šikola}",
  title="Preparation of GaN Nanocrystals with Single Ag Cores",
  journal="Crystal Growth and Design",
  year="2024",
  volume="24",
  number="19",
  pages="7904--7909",
  doi="10.1021/acs.cgd.4c00776",
  issn="1528-7505",
  url="https://pubs.acs.org/doi/10.1021/acs.cgd.4c00776"
}