Unlocking the potential of chlorophyll-based carbon dots towards water-splitting, white-light LED and encryption applications

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F70883521%3A28610%2F25%3A63594599" target="_blank" >RIV/70883521:28610/25:63594599 - isvavai.cz</a>

Výsledek na webu

<a href="https://www.sciencedirect.com/science/article/pii/S0008622325002210?via%3Dihub" target="_blank" >https://www.sciencedirect.com/science/article/pii/S0008622325002210?via%3Dihub</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.carbon.2025.120205" target="_blank" >10.1016/j.carbon.2025.120205</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Unlocking the potential of chlorophyll-based carbon dots towards water-splitting, white-light LED and encryption applications

Popis výsledku v původním jazyce

The versatile traits of carbon dots (CD) have positioned them as a compelling subject of study across various burgeoning fields. This work has successfully sourced CD from a porphyrin-containing compound, chlorophyll, which boasts outstanding light-harvesting and energy transfer capabilities. CD with excellent physicochemical properties were synthesized using a low-cost solvothermal method. The optical properties of CD have been harnessed for water-splitting applications with ZnO, resulting in significantly improved current efficiency of the photoanodes. When irradiated with AM1.5 G illumination, ZnO/CD heterojunction provided the highest photocurrent efficiency (0.225 mA/cm2 at 1.23 V vs RHE) as a result of enhanced light absorption across the UV to the visible region and improved interfacial charge transfer kinetics in comparison to the pristine ZnO. Additionally, the nanocomposite prepared of CD and boric acid (BACD) evinced promising naked eye phosphorescence for 10 s with an average phosphorescence lifetime of 1.5 s. The BACD nanocomposite was used as a free-standing thin film phosphor material for white light LED preparation and as an ink for data encryption. The results demonstrate that the acquired CD hold substantial promise for a variety of applications.

Název v anglickém jazyce

Unlocking the potential of chlorophyll-based carbon dots towards water-splitting, white-light LED and encryption applications

Popis výsledku anglicky

The versatile traits of carbon dots (CD) have positioned them as a compelling subject of study across various burgeoning fields. This work has successfully sourced CD from a porphyrin-containing compound, chlorophyll, which boasts outstanding light-harvesting and energy transfer capabilities. CD with excellent physicochemical properties were synthesized using a low-cost solvothermal method. The optical properties of CD have been harnessed for water-splitting applications with ZnO, resulting in significantly improved current efficiency of the photoanodes. When irradiated with AM1.5 G illumination, ZnO/CD heterojunction provided the highest photocurrent efficiency (0.225 mA/cm2 at 1.23 V vs RHE) as a result of enhanced light absorption across the UV to the visible region and improved interfacial charge transfer kinetics in comparison to the pristine ZnO. Additionally, the nanocomposite prepared of CD and boric acid (BACD) evinced promising naked eye phosphorescence for 10 s with an average phosphorescence lifetime of 1.5 s. The BACD nanocomposite was used as a free-standing thin film phosphor material for white light LED preparation and as an ink for data encryption. The results demonstrate that the acquired CD hold substantial promise for a variety of applications.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

20501 - Materials engineering

Projekt

—

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2025

Kód důvěrnosti údajů

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

Název periodika

Carbon

ISSN

0008-6223

e-ISSN

—

Svazek periodika

238

Číslo periodika v rámci svazku

Neuveden

Stát vydavatele periodika

GB - Spojené království Velké Británie a Severního Irska

Počet stran výsledku

11

Strana od-do

nestránkováno

Kód UT WoS článku

001451373300001

EID výsledku v databázi Scopus

2-s2.0-105000047982