Influence of the dopant compensation on the silicon electronic properties and on the performances of solar grade silicon solar cells
type: Dataset
description: This study aims at understanding the influence of the dopant compensation on the performances of solar cells based on solar-grade silicon purified via metallurgical routes. We first detailed the physics of compensated semiconductors. The compensation effects were then studied at the wafer level. We found a sharp unpredicted reduction in carrier mobility at high compensation level. Conversely, the dopant compensation was shown to be very beneficial to the carrier lifetime. We specified the recombination properties of dopants. We then focused on the compensation effects at the solar cell level. We obtained conversion efficiencies of 16% on highly doped and compensated solar cells, revealing the photovoltaic potential of solar-grade silicon. Since numerous association reactions occur between dopants and defects, we built an algorithm in order to simulate the association kinetics of such reactions. Eventually, we presented two innovative characterisation techniques that allow the concentrations of dopants and light elements to be measured.
identifier: NNT: 2011ISAL0111
issued: 2026-05-17T00:17:30.469845
language: fr
modified: 2026-05-17T00:17:30.469852
contact point: Organization
  fn: CCSD
keyword: cellule-photovoltaique
keyword: donneur-thermique
keyword: dopage
keyword: doping
keyword: electrical-performance
keyword: infoeu-reposemanticsdoctoralthesis
keyword: performances-electriques
keyword: photovoltaic-cell
keyword: silicium-de-qualite-solaire---sog-si
keyword: sog-si---solar-grade-silicon
keyword: spiotherengineering-sciences-physicsother
keyword: thermal-donnor
keyword: theses
landing page: https://theses.hal.science/tel-00701561

Influence of the dopant compensation on the silicon electronic properties and on the performances of solar grade silicon solar cells
type: Distribution
format: HTML
issued: 2026-05-17T00:17:30.615464
modified: 2026-05-17T00:17:30.434868
access URL: https://theses.hal.science/tel-00701561

test_moissonnage_selune
type: Agent