Noise and optical spectroscopy of single junction silicon solar cell

• Autorzy: Skvarenina L. , Macku R.

Identyfikatory

DOI

10.24425/119565

• Języki publikacji: EN

Abstrakty

EN

Noise spectroscopy as a highly sensitive method for non-destructive diagnostics of semiconductor devices was applied to solar cells based on crystalline silicon with a view to evaluating the quality and reliability of this solar cell type. The experimental approach was used in a reverse-biased condition where the internal structure of solar cells, as well as pn-junction itself, was electrically stressed and overloaded by a strong electric field. This gave rise to a strong generation of a current noise accompanied by local thermal instabilities, especially in the defect sites. It turned out that local temperature changes could be correlated with generation of flicker noise in a wide frequency range. Furthermore, an electrical breakdown in a non-stable form also occurred in some specific local regions what created micro-plasma noise with a two-level current fluctuation in the form of a Lorentzian-like noise spectrum. The noise research was carried out on both of these phenomena in combination with the spectrally-filtered electroluminescence mapping in the visible/near-infrared spectrum range and the dark lock-in infrared thermography in the far-infrared range. Then the physical origin of the light emission from particular defects was searched by a scanning electron microscope and additionally there was performed an experimental elimination of one specific defect by the focused ion beam milling.

Słowa kluczowe

EN

non-destructive diagnostics; c-Si solar cells; 1/f noise; electroluminescence; lock-in IR thermography

• Wydawca: Komitet Metrologii i Aparatury Naukowej PAN
• Czasopismo: Metrology and Measurement Systems
• Rocznik: 2018
• Tom: Vol. 25, nr 2
• Strony: 303--316
• Opis fizyczny: Bibliogr. 33 poz., rys., wykr., wzory

Twórcy

autor

Skvarenina L.

• Brno University of Technology, Faculty of Electrical Engineering and Communications, Technicka 3058/10, 616 00 Brno, Czech Republic

autor

Macku R.

• Brno University of Technology, Faculty of Electrical Engineering and Communications, Technicka 3058/10, 616 00 Brno, Czech Republic

Bibliografia

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Uwagi

EN

1. The research presented in this paper was financed by the Internal Grant Agency of Brno University of Technology, grant No. FEKT-S-17-4626 and by the National Sustainability Program under grant LO1401. In the research, the infrastructure of the SIX Centre was used.

PL

2. Opracowanie rekordu w ramach umowy 509/P-DUN/2018 ze środków MNiSW przeznaczonych na działalność upowszechniającą naukę (2018).