Optical fibre long period grating gas sensor modified with metal organic framework thin films

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216208%3A11310%2F15%3A10313646" target="_blank" >RIV/00216208:11310/15:10313646 - isvavai.cz</a>

Výsledek na webu

<a href="http://dx.doi.org/10.1016/j.snb.2015.07.027" target="_blank" >http://dx.doi.org/10.1016/j.snb.2015.07.027</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.snb.2015.07.027" target="_blank" >10.1016/j.snb.2015.07.027</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Optical fibre long period grating gas sensor modified with metal organic framework thin films

Popis výsledku v původním jazyce

An optical fibre long period grating (LPG) modified with a thin film of ZIF-8, a zeolitic immidazol framework material and a subgroup of metal organic framework family, was employed for the detection of organic vapours. ZIF-8 films were deposited onto the surface of the LPG using an in-situ crystallization technique by mixing freshly prepared 12.5 mM zinc nitrate hexahydrate and 25 mM 2-metyl-imidazole solutions in methanol. The ZIF-8 film was characterized by scanning electron microscopy. The thicknessand refractive index (RI) of films deposited after 1,2,3,5 and 10 growth cycles were determined by using an ellipsometer. The crystallinity of the films was confirmed by X-ray diffraction pattern. The LPG was designed to operate at the phase matching turning point to provide the highest sensitivity. The sensing mechanism is based on the measurement of the change in the RI of the film induced by the penetration of the chemical molecules into the ZIF-8 pores. The responses of LPGs modifie

Název v anglickém jazyce

Optical fibre long period grating gas sensor modified with metal organic framework thin films

Popis výsledku anglicky

An optical fibre long period grating (LPG) modified with a thin film of ZIF-8, a zeolitic immidazol framework material and a subgroup of metal organic framework family, was employed for the detection of organic vapours. ZIF-8 films were deposited onto the surface of the LPG using an in-situ crystallization technique by mixing freshly prepared 12.5 mM zinc nitrate hexahydrate and 25 mM 2-metyl-imidazole solutions in methanol. The ZIF-8 film was characterized by scanning electron microscopy. The thicknessand refractive index (RI) of films deposited after 1,2,3,5 and 10 growth cycles were determined by using an ellipsometer. The crystallinity of the films was confirmed by X-ray diffraction pattern. The LPG was designed to operate at the phase matching turning point to provide the highest sensitivity. The sensing mechanism is based on the measurement of the change in the RI of the film induced by the penetration of the chemical molecules into the ZIF-8 pores. The responses of LPGs modifie

Druh

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

CEP obor

CG - Elektrochemie

OECD FORD obor

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Projekt

—

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2015

Kód důvěrnosti údajů

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

Název periodika

Sensors and Actuators, B: Chemical

ISSN

0925-4005

e-ISSN

—

Svazek periodika

221

Číslo periodika v rámci svazku

December 2015

Stát vydavatele periodika

CH - Švýcarská konfederace

Počet stran výsledku

9

Strana od-do

891-899

Kód UT WoS článku

000362918100115

EID výsledku v databázi Scopus

2-s2.0-84937875119