| Titre : | Study of graphene-based solar cells by simulation |
| Auteurs : | Kaouther Chenaf, Auteur ; Rami Boumaraf, Directeur de thèse |
| Type de document : | Monographie imprimée |
| Editeur : | Biskra [Algérie] : Faculté des Sciences Exactes et des Sciences de la Nature et de la Vie, Université Mohamed Khider, 2021 |
| Format : | 1 vol. (56 p.) / ill. en coul., couv. ill. en coul. / 30 cm |
| Langues: | Français |
| Mots-clés: | Simulation, Atlas de Silvaco, Graphène, les cellules solaires |
| Résumé : |
Depuis la découverte du graphène en 2004, les chercheurs ont mené plusieurs recherches pour étudier ses propriétés distinctives de haute transparence, de grande conductivité et de flexibilité supérieure, ainsi que son impact sur le domaine de l'électronique contemporaine, en particulier dans le domaine de l'énergie solaire. Dans cette thèse, nous avons effectué une simulation d'une cellule solaire à base de graphène à l'aide du programme de simulation de dispositif semi-conducteur SILVACO TCAD, qui a été utilisé pour simuler l'effet de divers paramètres physiques tels que l'épaisseur et la fonction de travail sur les propriétés électriques de la cellule solaire. , Jsc (densité de courant de court-circuit), Voc (tension de circuit ouvert) , FF , Eff (efficacité de conversion d'énergie ) , où cette simulation a été réalisée sous irradiation AM1.5. |
| Sommaire : |
Abstrat……………………………………………………………………. III Résumé……………………………………………….............................. III …………………………………………………................................ IIIملخص List of figure……………………………………………………………... III List of table……………………………………………............................. III List of symbols………………………………………................................ III Introduction…………………………………………................................. 01 Chaptre 1 : Solar Cells Fundamentals 1. Introduction……………………………………………………………. 03 2. The solar cell…………………………………………………………... 03 2.1. Definition………………………………………………………….. 03 2.2. Solar cell structure………………………………………………… 03 2.2.1. Semiconductors…………………………………………….. 03 2.2.2. The band gap………………………………………………… 04 2.2.3. The PN junction……………………………………………... 04 2.2.4. Schottky junction (metal/semiconductor)…………………... 05IV 2.3. The principle of operation of a solar cell (photovoltaic)………….. 07 2.4. Basic semiconductor device equations……………………………. 08 2.4.1. Poisson's Equation…………………………………………... 09 2.4.2. The Current Density Equations……………………………… 09 2.4.3. The diffusion current Equations…………………………….. 09 2.4.4. The Continuity Equations…………………………………… 09 2.5. History of solar cells………………………………………………. 10 2.6. The three generations of solar cells……………………………….. 10 2.6.1. First Generation……………………………………………... 10 2.6.2. Second Generation………………………………………….. 11 2.6.3. Third Generation……………………………………………. 12 2.7. Solar Cell Characteristics…………………………………………. 12 2.7.1. Short Circuit Current Isc……………………………………. 13 2.7.2. Open Circuit Voltage………………………………………... 14 2.7.3. Fill Factor FF………………………………………………... 14 2.7.4. Efficiency……………………………………………………. 15 2.8. Solar cell applications……………………………………………... 16 2.9. Advantages and disadvantages of solar cell………………………. 17 Chaptre 2 : Graphene based solar cells 1. Introduction……………………………………………………………. 19 2. Graphene………………………………………………………………. 19 2.1. Forms of Graphene………………………………………………... 20V 2.1.1. GrapheneMonolayer………………………………………… 20 2.1.2. Few-Layer Graphene (FLG) or Multi-Layer Graphene(MLG)……………………………………………………………………20 2.1.3. Graphene Oxide (GO)………………………………………. 20 2.1.4. Reduced Graphene Oxide (rGO)……………………………. 21 2.1.5. Graphene nanomaterials…………………………………….. 21 2.2. General principle of graphene synthesis…………………………... 21 2.3. Production techniques……………………………………………... 22 2.3.1. Mechanical Exfoliation……………………………………… 22 2.3.2. Chemical vapor deposition (CVD)………………………….. 23 2.3.3. Electrochemical mechanisms of exfoliation………………… 24 2.3.4. Chemically derived Graphene from Graphite Oxide………... 24 2.4. Graphene properties……………………………………………….. 24 2.4.1. Electronic Properties………………………………………… 24 2.4.2. Mechanical Propertie………………………………………... 25 2.4.3. Optical Properties…………………………………………… 25 2.4.4. Thermal properties…………………………………………... 25 3. Silicon…………………………………………………………………. 25 3.1. Definition………………………………………………………….. 25 3.2. Silicon properties………………………………………………….. 26 4.1. Types of silicon…………………………………………………… 26 5. Using graphene in solar cells………………………………………….. 26 5.1. The use of graphene to exploit raindrops………………………….. 26VI 5.2. The use of graphene as an electrode………………………………. 27 6. Graphene-based solar cells……………………………………………. 28 6.1. Graphene-Composited Thin Film Solar Cell……………………… 28 6.1.1. Graphene with CdTe……………………………………….. 28 6.1.2. Graphene with CIGS……………………………………….. 28 6.2. Perovskite Solar Cells with Graphene…………………………….. 29 6.3. Graphene on Dye-Sensitized Solar Cells………………………….. 30 7. Graphene/Si Schottky solar cells……………………………………… 31 Chaptre 3 : SILVACO simulation and results 1. Introduction ……………………………………………………..……. 34 2. Silvaco Atlas Simulation Software……………………………………. 34 2.1. Atlas operation mode……………………………………………… 35 2.2. Structure Specification……………………………………………. 36 2.2.1. Mesh………………………………………………………… 36 2.2.2. Region……………………………………………………….. 37 2.2.3. Electrodes……………………………………………………. 38 2.2.4. Doping………………………………………………………. 39 2.3. Material Models Specification…………………………………….. 40 2.3.1. Material……………………………………………………… 40 2.3.2. Models………………………………………………………. 40 2.4. Numerical METHOD selection…………………………………… 41 2.5. Light Beam………………………………………………………... 42VII 2.6. Solution Specification…………………………………………….. 42 2.7. Results Analysis…………………………………………………… 42 3. Simulation results and discussions……………………………………. 43 3.1. graphene parameters used in this work……………………………. 43 3.2. Simulated structure………………………………………………... 44 3.3. The graphene/silicon solar cell simulation……………………….. 45 3.4. Effect of graphene thickness on solar cells……………………… 46 3.5. Effect of doping concentration on solar cell……………………… 48 3.6. Effect of graphene work function on solar cell ………………… 49 Conclusion……………………………………………………………….. 52 References……………………………………………………………….. 53 |
| Type de document : | Mémoire master |
Disponibilité (1)
| Cote | Support | Localisation | Statut |
|---|---|---|---|
| MPHY/579 | Mémoire master | bibliothèque sciences exactes | Consultable |
