Electrical and colloidal properties of hydrogenated nanodiamonds: Effects of structure, composition and size

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68378271%3A_____%2F24%3A00585214" target="_blank" >RIV/68378271:_____/24:00585214 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/61388980:_____/24:00585214 RIV/68407700:21230/24:00372493 RIV/68407700:21340/24:00372493 RIV/44555601:13520/24:43898669 RIV/49777513:23640/24:43973737

Výsledek na webu

<a href="https://hdl.handle.net/11104/0352975" target="_blank" >https://hdl.handle.net/11104/0352975</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.cartre.2024.100327" target="_blank" >10.1016/j.cartre.2024.100327</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Electrical and colloidal properties of hydrogenated nanodiamonds: Effects of structure, composition and size

Popis výsledku v původním jazyce

This study shows how the ND synthesis process and ND size are reflected in their different colloidal/hydration and electronic properties. We employ three different ND types: detonation ND (DND), topdown high-pressure high-temperature ND (TD_HPHT ND) prepared by milling of HPHT monocrystals, and bottom-up high-pressure high-temperature ND (BU_HPHT ND) prepared by HPHT synthesis from chloroadamantane. Zeta potential measurements and Fourier transform infrared spectroscopy analysis (FTIR) reveal the best colloidal stability in neutral to basic pH and the strongest affinity to water for DND. Electrical and FTIR measurements connected with an annealing treatment show a steep increase of electrical conductivity in BU_HPHT ND above 2 nm and reveal different contribution of transfer doping in BU_HPHT ND and TD_HPHT ND despite similar conductivity values. We also confirm the correlation of the ND conductivity with IR transmission at the phonon frequency of the diamond.

Název v anglickém jazyce

Electrical and colloidal properties of hydrogenated nanodiamonds: Effects of structure, composition and size

Popis výsledku anglicky

This study shows how the ND synthesis process and ND size are reflected in their different colloidal/hydration and electronic properties. We employ three different ND types: detonation ND (DND), topdown high-pressure high-temperature ND (TD_HPHT ND) prepared by milling of HPHT monocrystals, and bottom-up high-pressure high-temperature ND (BU_HPHT ND) prepared by HPHT synthesis from chloroadamantane. Zeta potential measurements and Fourier transform infrared spectroscopy analysis (FTIR) reveal the best colloidal stability in neutral to basic pH and the strongest affinity to water for DND. Electrical and FTIR measurements connected with an annealing treatment show a steep increase of electrical conductivity in BU_HPHT ND above 2 nm and reveal different contribution of transfer doping in BU_HPHT ND and TD_HPHT ND despite similar conductivity values. We also confirm the correlation of the ND conductivity with IR transmission at the phonon frequency of the diamond.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

21001 - Nano-materials (production and properties)

Projekt

Výsledek vznikl pri realizaci vícero projektů. Více informací v záložce Projekty.

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2024

Kód důvěrnosti údajů

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

Název periodika

Carbon Trends

ISSN

2667-0569

e-ISSN

2667-0569

Svazek periodika

14

Číslo periodika v rámci svazku

Mar

Stát vydavatele periodika

NL - Nizozemsko

Počet stran výsledku

11

Strana od-do

100327

Kód UT WoS článku

001183565000001

EID výsledku v databázi Scopus

2-s2.0-85184832774