Etude du fonctionnement des dispositifs électroniques à base de silicium microcristallin : Simulation numérique et approche expérimentale

Notice brève
dc.contributor.authorCHAHI Mokhtar
dc.date.accessioned2022-11-08T12:56:46Z
dc.date.available2022-11-08T12:56:46Z
dc.date.issued2020-10-28
dc.description.abstractHydrogenated microcrystalline silicon has been largely studied and several research works have investigated based on the correlations between electronic, optical and structural properties. Although many studies, the transport properties are still not fully understood because the interpretation of experimental data are complicated due the structure of microcrystalline materials which is formed by grains, grain boundary and amorphous phase. The cells that we have investigated in this first part are the electrical properties simulation of Schottky diodes based intrinsic hydrogenated microcrystalline silicon with 1 micro m of thickness and with different crystalline volume fraction, comparing with Schottky diodes based on amorphous silicon. We have used a detailed electrical-optical computer Analysis of microelectronic and photonic structures (AMPS - 1D) in conjunction with the experimental characterization of hydrogenated microcrystalline silicon thin-film solar cells of different degrees of crystallinity. The simulation results suggest that the cell based on hydrogenated microcrystalline silicon has an efficiency of photovoltaic conversion greater than that observed for the cell based on hydrogenated amorphous silicon. To improve light-trapping in thin film solar cells, diffractive gratings are one type of optical nanostructure that reveals great potential in this field. As a typical example, the gratings considered are square pillar of two dimensions based on silicon crystalline c-Si. Gratings with periods of 1.2, 1.5 and 1.8 micro m and depth of 400 nm were located on the rear side of the cells. These results demonstrated that period around of 1.2 mcro m will be better for a grating placed on the rearside of a solar cell based on crystalline silicon to improve the enhancement light absorption.
dc.formatpdf
dc.identifier.urihttps://dspace.univ-oran1.dz/handle/123456789/554
dc.language.isoen
dc.publisherUniversité Oran 1 Ahmed Ben Bella
dc.subjectMicrocrystalline silicon
dc.subjectCrystalline silicon
dc.subjectAmorphous silicon
dc.subjectSchottky Diode
dc.subjectDensity of states
dc.subjectLight trapping
dc.subjectDiffused light
dc.subjectSilicon periodic grating
dc.subjectAbsorption
dc.subjectAMPS Program
dc.subjectReflectance
dc.subjectCrystalline fraction
dc.subjectDiffraction angles
dc.subjectPhotoresponse and anti-reflection coatings
dc.titleEtude du fonctionnement des dispositifs électroniques à base de silicium microcristallin : Simulation numérique et approche expérimentale
dc.typeThesis
grade.Co-rapporteurSIB Jamal dine, Professeur, Ecole Supérieure en Génie Electrique et Energétique Oran
grade.ExaminateurKAIL Fatiha, Professeur, Université Oran 1
grade.ExaminateurBELFEDAL Abdelkader, Professeur, Université de Mascara
grade.ExaminateurAIT KACI Hocine, Professeur, Université Mohamed Boudiaf USTO - Oran
grade.GradeDoctorat
grade.InviteBOUHEKKA Ahmed, M.C.A, Centre universitaire de Tissemsilt
grade.PrésidentBOUIZEM Yahya, Professeur, Université Oran 1
grade.RapporteurCHAHED Larbi, Professeur, Université Oran 1
l'article.1.DateParution08 March 2010
l'article.1.RevuePhysica Status Solidi C
l'article.1.RéférenceDOI 10.1002/pssc.200982691
l'article.1.TitreOptoelectronic properties simulation of hydrogenated microcrystalline silicon Schottky diode
l'article.2.DateParution20 September 2019
l'article.2.RevueOptik - International Journal for Light and Electron Optics
l'article.2.Référencehttps://doi.org/10.1016/j.ijleo.2019.163143
l'article.2.TitreThe enhancement of near infrared light trapping in solar cells with backside crystalline silicon gratings: Realization and characterization investigation
la.MentionTrès honorables
la.SpécialitéSC/DES MATERIAUX
la.coteTH5166
Fichiers
Bundle original
Voici les éléments 1 - 1 sur 1
Vignette d'image
Nom :
TH5166.pdf
Taille :
5.35 MB
Format :
Adobe Portable Document Format
Description :
Télécharger
Bundle de license
Voici les éléments 1 - 1 sur 1
Pas de vignette d'image disponible
Nom :
license.txt
Taille :
387 B
Format :
Item-specific license agreed to upon submission
Description :
Télécharger
Collections
Thèses de Doctorat "Physique"