Title :
LBIC characterization of twin boundaries in tricrystalline silicon solar cells
Author :
Wawer, P. ; Irmscher, S. ; Wagemann, H.G.
Author_Institution :
Inst. fur Mikroelektronik & Festkorperelektronik, Tech. Univ. Berlin, Germany
fDate :
29 Sep-3 Oct 1997
Abstract :
The purpose of this work is the investigation of the electrical properties of solar cells made of tricrystalline silicon. The twin-boundaries were characterized with a high resolution light beam induced current (LBIC) measurement setup. The results were compared with measurements performed on conventional multicrystalline silicon solar cells. It is shown that the twins are electrically active. No significant difference between first and second order twinning can be detected. The grain-boundary recombination measured on multicrystalline solar cells lies by a factor of 5 above the twin-boundary activity
Keywords :
OBIC; elemental semiconductors; silicon; solar cells; twin boundaries; LBIC characterization; LBIC measurement setup; Si; Si solar cells; electrical properties; electrically active twin boundaries; grain-boundary recombination; high resolution light beam induced current; tricrystalline silicon solar cells; twin boundaries; twinning; Casting; Costs; Crystallization; Crystals; Fabrication; Photovoltaic cells; Production; Silicon; Stability; Wire;
Conference_Titel :
Photovoltaic Specialists Conference, 1997., Conference Record of the Twenty-Sixth IEEE
Conference_Location :
Anaheim, CA
Print_ISBN :
0-7803-3767-0
DOI :
10.1109/PVSC.1997.653941
