Modeling of InGaN/Si tandem cells: comparison between 2-contacts/4-contacts

Autor: Walid El-Huni, Anne Migan, Zakaria Djebbour, David Alamarguy
Přispěvatelé: Laboratoire Génie électrique et électronique de Paris (GeePs), Université Paris-Sud - Paris 11 (UP11)-Université Pierre et Marie Curie - Paris 6 (UPMC)-CentraleSupélec-Centre National de la Recherche Scientifique (CNRS), Centre National de la Recherche Scientifique (CNRS)-CentraleSupélec-Université Pierre et Marie Curie - Paris 6 (UPMC)-Université Paris-Sud - Paris 11 (UP11)
Jazyk: angličtina
Rok vydání: 2017
Předmět:
Materials science
Silicon
lcsh:TJ807-830
Alloy
lcsh:Renewable energy sources
chemistry.chemical_element
Nanotechnology
02 engineering and technology
engineering.material
01 natural sciences
7. Clean energy
law.invention
law
0103 physical sciences
Solar cell
Electrical and Electronic Engineering
Polarization (electrochemistry)
010302 applied physics
Tandem
Renewable Energy
Sustainability and the Environment

business.industry
Relaxation (NMR)
[SPI.NRJ]Engineering Sciences [physics]/Electric power
021001 nanoscience & nanotechnology
Condensed Matter Physics
Electronic
Optical and Magnetic Materials

[SPI.TRON]Engineering Sciences [physics]/Electronics
chemistry
engineering
[PHYS.COND.CM-MS]Physics [physics]/Condensed Matter [cond-mat]/Materials Science [cond-mat.mtrl-sci]
Optoelectronics
0210 nano-technology
business
Layer (electronics)
Indium
Zdroj: EPJ Photovoltaics
EPJ Photovoltaics, 2017, 8, ⟨10.1051/epjpv/2017003⟩
EPJ Photovoltaics, EDP sciences, 2017, 8, ⟨10.1051/epjpv/2017003⟩
EPJ Photovoltaics, Vol 8, p 85502 (2017)
ISSN: 2105-0716
DOI: 10.1051/epjpv/2017003⟩
Popis: International audience; Due to its electrical and optical interesting properties, InGaN alloy is being intensively studied to be combined with silicon in order to achieve low-cost high-efficiency solar cell. However, a relatively thick monophasic layer of InGaN is difficult to grow due to the relaxation issue in material. This issue can be avoided by semibulk structure. In this work, we present an InGaN/Si double-junction solar cell modeled using Silvaco-ATLAS TCAD software. We have taken into account polarization effect in III-N materials. We have shown that 50% of indium is needed to ensure the current matching between the top cell and the bottom cell in 2-terminal configuration. Such high indium composition is technologically challenging to grow. Thus, we have modeled a 4-terminals solar cell with relatively low indium composition (In = 25%) where current matching is not needed. With technologically feasible structural parameters, we have shown that an efficiency near to 30% can be achieved with InGaN/Si 4-contact tandem cell.
Databáze: OpenAIRE