Size decrease of detonation nanodiamonds by air annealing investigated by AFM

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68378271%3A_____%2F16%3A00470564" target="_blank" >RIV/68378271:_____/16:00470564 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/68407700:21110/16:00305697 RIV/68407700:21230/16:00305697

Výsledek na webu

<a href="http://dx.doi.org/10.1557/adv.2016.36" target="_blank" >http://dx.doi.org/10.1557/adv.2016.36</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1557/adv.2016.36" target="_blank" >10.1557/adv.2016.36</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Size decrease of detonation nanodiamonds by air annealing investigated by AFM

Popis výsledku v původním jazyce

Nanodiamonds represent a novel nanomaterial applicable from biomedicine to spintronics. Here we study ability of air annealing to further decrease the typical 5 nm NDs produced by detonation synthesis. We use AFM with sub-nm resolution to directly measure individual detonation nanodiamonds on a flat Si substrate. By means of particle analysis we obtain their accurate and statistically relevant size distributions. Using this approach, we characterize evolution of the size distribution as a function of time and annealing temperature: i) at constant time (25 min) with changing temperature (480, 490, 500°C) and ii) at constant temperature (490°C) with changing time (10, 25, 50 min). We show that the mean size of DNDs can be controllably reduced from 4.5 nm to 1.8 nm without noticeable particle loss and down to 1.3 nm with 36% yield. By air annealing the size distribution changes from Gaussian to lognormal with a steep edge around 1 nm, indicating instability of DNDs below 1 nm.n

Název v anglickém jazyce

Size decrease of detonation nanodiamonds by air annealing investigated by AFM

Popis výsledku anglicky

Nanodiamonds represent a novel nanomaterial applicable from biomedicine to spintronics. Here we study ability of air annealing to further decrease the typical 5 nm NDs produced by detonation synthesis. We use AFM with sub-nm resolution to directly measure individual detonation nanodiamonds on a flat Si substrate. By means of particle analysis we obtain their accurate and statistically relevant size distributions. Using this approach, we characterize evolution of the size distribution as a function of time and annealing temperature: i) at constant time (25 min) with changing temperature (480, 490, 500°C) and ii) at constant temperature (490°C) with changing time (10, 25, 50 min). We show that the mean size of DNDs can be controllably reduced from 4.5 nm to 1.8 nm without noticeable particle loss and down to 1.3 nm with 36% yield. By air annealing the size distribution changes from Gaussian to lognormal with a steep edge around 1 nm, indicating instability of DNDs below 1 nm.n

Druh

J_x - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)

CEP obor

BM - Fyzika pevných látek a magnetismus

OECD FORD obor

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Projekt

<a href="/cs/project/GA15-01809S" target="_blank" >GA15-01809S: Studium funkcionalizovaných nanočástic diamantu pro konverzi energie</a><br>

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2016

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

MRS Advances

ISSN

2059-8521

e-ISSN

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Svazek periodika

1

Číslo periodika v rámci svazku

16

Stát vydavatele periodika

GB - Spojené království Velké Británie a Severního Irska

Počet stran výsledku

7

Strana od-do

1067-1073

Kód UT WoS článku

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EID výsledku v databázi Scopus

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