Detail publikačního výsledku

Advanced Local Quality Assessment of Monocrystalline Silicon Solar Cell Efficiency

ŠKARVADA, P.; TOMÁNEK, P.; GRMELA, L.

Originální název

Advanced Local Quality Assessment of Monocrystalline Silicon Solar Cell Efficiency

Anglický název

Advanced Local Quality Assessment of Monocrystalline Silicon Solar Cell Efficiency

Druh

Abstrakt

Originální abstrakt

Solar cells, or photovoltaic cells, are used to convert sunlight into electrical power. The defects or imperfections in silicon solar cells lower the light-current conversion and consequently also an efficiency of the device. These defects in the semiconductor structure are normally detected by electric measurements. The thermal dependency of breakdown voltage is positive and the defects can be revealed by surface inhomogenity. To ensure a higher quality of the solar cells, advanced local quality assessment is provided and experimental results of solar cell defect measurement in microscale region are presented. Using Near-field optical beam induced current and voltage method, both current and voltage in defect area were detected and individual defects were localized with higher spatial resolution. This measurement also verifies that in reverse biased electroluminescence spots the quantum efficiency is lower and so these spots affect overall quality of the cell.

Anglický abstrakt

Solar cells, or photovoltaic cells, are used to convert sunlight into electrical power. The defects or imperfections in silicon solar cells lower the light-current conversion and consequently also an efficiency of the device. These defects in the semiconductor structure are normally detected by electric measurements. The thermal dependency of breakdown voltage is positive and the defects can be revealed by surface inhomogenity. To ensure a higher quality of the solar cells, advanced local quality assessment is provided and experimental results of solar cell defect measurement in microscale region are presented. Using Near-field optical beam induced current and voltage method, both current and voltage in defect area were detected and individual defects were localized with higher spatial resolution. This measurement also verifies that in reverse biased electroluminescence spots the quantum efficiency is lower and so these spots affect overall quality of the cell.

Klíčová slova

solar cell

Klíčová slova v angličtině

solar cell

Autoři

ŠKARVADA, P.; TOMÁNEK, P.; GRMELA, L.

Rok RIV

2011

Vydáno

30.06.2010

Nakladatel

Vutium

Místo

Brno

ISBN

978-80-214-4112-5

Kniha

Materials structure and micromechanics of fracture

Strany od

160

Strany do

160

Strany počet

1

BibTex

@misc{BUT61077,
  author="Pavel {Škarvada} and Pavel {Tománek} and Lubomír {Grmela}",
  title="Advanced Local Quality Assessment of Monocrystalline Silicon Solar Cell Efficiency",
  booktitle="Materials structure and micromechanics of fracture",
  year="2010",
  pages="160--160",
  publisher="Vutium",
  address="Brno",
  isbn="978-80-214-4112-5",
  note="Abstract"
}