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Fig. 2 | Nanoscale Research Letters

Fig. 2

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

Fig. 2

Effect of NO2 doping on CNT-SiNW solar cell performances. a Light J-V curves of CNT-SiNW solar cell before (black) and after (red) NO2 doping. b Dark J-V curves of CNT-SiNW solar cell before (black) and after (red) NO2 doping. c Light J-V curves of CNT-SiNW solar cell at different NO2 concentration and exposure time. d Series resistance decrease after 1000 ppm NO2 doping for 60 min. Inset is the I-V curves of a CNT membrane before and after NO2 doping

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