2024-03-19T05:01:58Zhttps://www.tdx.cat/oai/requestoai:www.tdx.cat:10803/6760292022-11-18T12:14:49Zcom_10803_480col_10803_386424
TDX (Tesis Doctorals en Xarxa)
author
Macias Pinilla, David Francisco
authoremail
dmacias@uji.es
authoremailshow
false
director
Mora Seró, Iván
director
Climente Plasencia, Juan Ignacio
tutor
Mora Seró, Iván
2022-11-18T11:27:08Z
2022-11-18T11:27:08Z
2022-11-14
http://hdl.handle.net/10803/676029
http://dx.doi.org/10.6035/14104.2022.746331
Nanoplatelets (NPLs) are of particular interest for their unique properties, they have a precisely controlled thickness of a few atomic monolayers (MLs), and lateral dimensions ranging from hundreds of nm to few nms, where quantum confinement is already felt. Additionally, NPLs are surrounded by organic ligands with weak polarizability, thus exerting a strong dielectric confine- ment that, together with the quantum confinement, serves to modulate the optical properties. The main objective of this PhD work is to study at a theoretical level the optoelectronic properties of excitonic and biexcitonic complexes in semiconductor core-only PbS and CdSe NPLs. To this end, we shall analyze the electronic structure of exciton complexes confined inside, and the resulting optical spectrum. We address through density functional theory (DFT) and k·p theory, coupled to variational and variational quantum Monte Carlo (VQMC) methods, some of the open questions that currently exist about the NPLs electronic nature.
eng
Nanoplatelet
K.p theory
Dielectric Confinement
Quantum Confinement
Quantum Monte Carlo
Optical properties
Nanoplaquetas semiconductoras
Confinamiento dieléctrico
Confinamiento cuántico
Propiedades ópticas
Optoelectronic Properties of Excitonic and Biexcitonic Complexes in Metal Chalcogenide Semiconductor Nanoplatelets
info:eu-repo/semantics/doctoralThesis info:eu-repo/semantics/publishedVersion
URL
https://www.tdx.cat/bitstream/10803/676029/1/2022_Tesis_Macias%20Pinilla_David%20F..pdf
File
MD5
d3c1ef731ed181ea9aa5253333433e5e
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application/pdf
2022_Tesis_Macias Pinilla_David F..pdf