Capacitance effects in high efficiency cells
A method was developed to measure the light induced diffusion-capacitance in silicon solar cells. This cell-capacitancer leads to a capacitive effect, which previously was discovered as a 'dirt-effect' in current-voltage measurements. Because of increasing quality assurance requirements, the understanding of this phenomenon is essential for the correct calibration of photovoltaic devices. The calculation of the capacitance charge is based on the photocurrent-response-measurement of a photovoltaic device. The photocurrent is induced by a square-shaped monochromatic irradiation pulse. Measurements of the cell-capacitance versus direct bias voltage, the light intensity and the wavelength of the lightsource are performed.
Bibliographic Reference: Paper presented: 9th International Photovoltaic Science and Engineering Conferenec, Miyazaki (JP), November 13-15, 1996
Availability: Available from (1) as Paper EN 40217 ORA
Record Number: 199611489 / Last updated on: 1997-01-16
Original language: en
Available languages: en