Synthesis and electrochemical properties of Pbs nanoparticles for optoelectronic devices
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Title
Synthesis and electrochemical properties of Pbs nanoparticles for optoelectronic devicesAuthor (s)
Tutor/Supervisor; University.Department
Julian-Lopez, Beatriz; Universitat Jaume I. Departament de Química Inorgànica i OrgànicaDate
2018-07Publisher
Universitat Jaume IAbstract
The main goal of this work is to study the influence of different synthetic factors (such
as the nature of metal precursors, solvent, reaction time and temperature, Pb
concentration and the Pb:S molar ratio) in the ... [+]
The main goal of this work is to study the influence of different synthetic factors (such
as the nature of metal precursors, solvent, reaction time and temperature, Pb
concentration and the Pb:S molar ratio) in the morphology of solvothermally-prepared
PbS particles, as well as to understand the mechanism of PbS crystals formation. With
the optimized PbS particles, the main functional properties, including both optical
absorption and electrochemical capacity, will be measured in order to analyze their
application in optoelectronic devices.
The main objective is divided in the following specific objectives:
I. To obtain PbS nanoparticles with well-defined structure (all particles with
similar size and morphology).
II. To determine the amount of residual PbO formed during the synthesis. Our
synthesis was performed in air atmosphere and many reported syntheses were
made in a controlled atmosphere of N2, Ar or vacuum.
III. To study the relationship between synthetic parameters and the particle size
distribution and morphology, in order to propose a mechanism of PbS crystal
formation.
IV. To prepare stable dispersions of PbS nanoparticles, which is one of the most
important requisites to prepare thin layers for optoelectronic materials.
V. To perform the optical absorption spectra and the electrochemical capacity of
our materials and compare them with bulk and other reported PbS
nanostructures. [-]
Description
Treball Final de Grau en Química. Codi: QU0943. Curs acadèmic: 2017/2018
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- Grau en Química [265]