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Table 1 Characteristics of the CNT-SiNW solar cells under AM1.5G, 80 mW/cm² illumination treated at different NO₂ concentrations and exposure time

From: Carbon Nanotube-Silicon Nanowire Heterojunction Solar Cells with Gas-Dependent Photovoltaic Performances and Their Application in Self-Powered NO₂ Detecting

Device treatment	V _oc(V)	J _sc(mA/cm²)	FF (%)	η (%)
0 ppm (N₂)	0.28	0.66	12.5	0.03
NO₂ (10 ppm, 30 min)	0.42	7.40	16.9	0.65
NO₂ (1000 ppm, 30 min)	0.47	20.3	48.9	5.80
NO₂ (1000 ppm, 60 min)	0.48	20.7	54.3	6.74

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