Green and simple route toward boron doped carbon dots with significantly enhanced non-linear optical properties

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61989592%3A15310%2F15%3A33151911" target="_blank" >RIV/61989592:15310/15:33151911 - isvavai.cz</a>

Výsledek na webu

<a href="http://www.sciencedirect.com/science/article/pii/S000862231401104X" target="_blank" >http://www.sciencedirect.com/science/article/pii/S000862231401104X</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.carbon.2014.11.032" target="_blank" >10.1016/j.carbon.2014.11.032</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Green and simple route toward boron doped carbon dots with significantly enhanced non-linear optical properties

Popis výsledku v původním jazyce

Microwave heating of an aqueous solution of citric acid, boric acid and urea affords borondoped carbon dots (C-dots) with ultrafine size (2-6 nm) and quasi-spherical shape. The new dots are freely dispersible in water providing stable, optically transparent dispersions with olive-green color. The optical properties of the dots were studied in respect to their photoluminescence and nonlinear optical response. Boron-doped C-dots exhibit absorption-emission features that strongly resemble the optical properties of conventional quantum dots with a strong blue fluorescence under UV excitation. Importantly, we demonstrate for the first time that boron doping in C-dots causes a significant enhancement of the nonlinear optical response compared to un-doped carbon dots. This result is in line with previous studies reporting a similar effect on the non-linear optical properties of boron-doped silicon nanocrystals.

Název v anglickém jazyce

Green and simple route toward boron doped carbon dots with significantly enhanced non-linear optical properties

Popis výsledku anglicky

Microwave heating of an aqueous solution of citric acid, boric acid and urea affords borondoped carbon dots (C-dots) with ultrafine size (2-6 nm) and quasi-spherical shape. The new dots are freely dispersible in water providing stable, optically transparent dispersions with olive-green color. The optical properties of the dots were studied in respect to their photoluminescence and nonlinear optical response. Boron-doped C-dots exhibit absorption-emission features that strongly resemble the optical properties of conventional quantum dots with a strong blue fluorescence under UV excitation. Importantly, we demonstrate for the first time that boron doping in C-dots causes a significant enhancement of the nonlinear optical response compared to un-doped carbon dots. This result is in line with previous studies reporting a similar effect on the non-linear optical properties of boron-doped silicon nanocrystals.

Druh

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

CEP obor

CF - Fyzikální chemie a teoretická chemie

OECD FORD obor

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Projekt

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

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)<br>S - Specificky vyzkum na vysokych skolach

Rok uplatnění

2015

Kód důvěrnosti údajů

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

Název periodika

Carbon

ISSN

0008-6223

e-ISSN

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Svazek periodika

83

Číslo periodika v rámci svazku

MAR

Stát vydavatele periodika

GB - Spojené království Velké Británie a Severního Irska

Počet stran výsledku

7

Strana od-do

173-179

Kód UT WoS článku

000348951800019

EID výsledku v databázi Scopus

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