Title :
Screen-Printed Aluminum-Alloyed
Emitter on High-Efficiency N-Type Interdigitated Back-Contact Silicon Solar Cells
Author :
Gong, Chun ; Van Kerschaver, Emmanuel ; Robbelein, Jo ; Janssens, Tom ; Posthuma, Niels ; Poortmans, Jef ; Mertens, Robert
Author_Institution :
IMEC, Leuven, Belgium
fDate :
6/1/2010 12:00:00 AM
Abstract :
We demonstrate the use of industrial-orientated screen-printed aluminum-alloyed emitter for high-efficiency n-type interdigitated back-contact silicon solar cells. Different cell designs with various pitch sizes and emitter fractions have been studied. With an improved front surface field (FSF), short-circuit current densities up to 40 can be obtained. By combining the best cell design and the improved FSF, a high conversion efficiency of 19.1% with Czochralski n-type material has been achieved.
Keywords :
aluminium alloys; short-circuit currents; solar cells; AlJkJk; Czochralski n-type material; front surface field; high-efficiency n-type interdigitated back-contact silicon solar cells; screen-printed aluminum-alloyed emitter; short-circuit current densities; Front surface field (FSF); interdigitated back-contact (IBC) solar cells; n-type solar cells; screen-printed Al-alloyed emitter;
Journal_Title :
Electron Device Letters, IEEE
DOI :
10.1109/LED.2010.2045151