Exploració de la síntesi de nanoparticules de tungstats dobles amb baixa temperatura de transició polimòrfica per la via solvotermal

Gómez Fernández, Josep Maria

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Exploració de la síntesi de nanoparticules de tungstats dobles amb baixa temperatura de transició polimòrfica per la via solvotermal - TFG:1703

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https://hdl.handle.net/20.500.11797/TFG1703

Student:	Gómez Fernández, Josep Maria
Language:	cat
Title in original language:	Exploració de la síntesi de nanoparticules de tungstats dobles amb baixa temperatura de transició polimòrfica per la via solvotermal
Title in different languages:	Exploration of the synthesis of nanoparticles of double tungstates with low polymorphic transition temperature by the solvothermal route.
Keywords:	Nanocrystals, CsYb(WO4)2, photoluminescence
Subject:	Química
Abstract:	The aim of this work is to explore synthesis by solvothermal method of CsYb(WO4)2 nanoparticles with low thermal transition phase and compare with Pechini’s method (a sol-gel synthesis) which has been broadly studied in FiCMA-FiCNA laboratories in recent years. According to the previous literature, it is expected that this material presents a low temperature monoclinic crystalline phase. A TEM has been performed to determine the distribution of particle size and morphology in obtained products of synthesis. In addition X ray powder analysis and a Pawley refinement have been realized to confirm the obtained crystalline phase and to obtain structural information. In order to check the presence of temperature crystalline phase transitions, a DTA-TG analysis has been carried out. Additionally a spectroscopic characterization of Er3+ doped and undoped particles has been realized to explore the possible potential of this material as temperature sensor.
Project director:	Pujol Baiges, Maria Cinta
Department:	Química Física i Inorgànica
Education area(s):	Química
Entity:	Universitat Rovira i Virgili (URV)
TFG credits:	12
Creation date in repository:	2018-12-03
Work's public defense date:	2018-06-15
Academic year:	2017-2018
Confidenciality:	No
Subject areas:	Chemistry
Access rights:	info:eu-repo/semantics/openAccess

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Type:	info:eu-repo/semantics/bachelorThesis
Contributor:	Pujol Baiges, Maria Cinta
Títol:	Exploració de la síntesi de nanoparticules de tungstats dobles amb baixa temperatura de transició polimòrfica per la via solvotermal
Language:	cat
Subject:	Química Chemistry Química Química
Creator:	Gómez Fernández, Josep Maria
Rights:	info:eu-repo/semantics/openAccess
Date:	2018-06-15

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