Low Light Intensity Performance of N- and P-Type ... - ISC Konstanz

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IV measurements illumination: 1 sun …….. 0.02 suns (5 steps) base material: Cz p-type Cz n-type cell design: standard: Al BSF cell Al rear emitter cell advanced: PERL cell PERL cell -> comparison of the relative normalized power output at P mpp Andreas Halm, PVSEC-21 Fukuoka, Japan, 2011 4
IV measurements – standard cells definition: • P mpp @ 1 sun ≡ 1 -> normalization for comparability cell to cell • P mpp relative to illumination: P mpp,rel = P mpp (x)*(1sun/x suns) -> for comparability of different illumination levels -> P mpp,rel drops faster for p-type cells ! Andreas Halm, PVSEC-21 Fukuoka, Japan, 2011 5
Page 1 and 2: LOW LIGHT INTENSITY PERFORMANCE OF
Page 3: motivation N-type on wafer level: n
Page 7 and 8: influence of parallel resistance
Page 9 and 10: simulated influence of R shunt Silv
Page 11 and 12: elative power output outdoors • o
Page 13 and 14: Pmpp,rel vs. intensity outdoors For
Page 15 and 16: comparison of energy harvest -5.4%
Page 17 and 18: summary L eff p-type R shunt L eff
Page 19: acknowledgements • “Schwachlich

Low Light Intensity Performance of N- and P-Type ... - ISC Konstanz

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