Broad-spectral-response nanocarbon bulk-heterojunction excitonic photodetectors.

Xie, Yu; Gong, Maogang; Shastry, Tejas A; Lohrman, Jessica; Hersam, Mark C; Ren, Shenqiang · Adv Mater · 2013

basic_science · Level V

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Abstract

High-performance broad-spectrum nanocarbon bulk-heterojunction photovoltaic photodetectors are reported. These reported photodetectors consist of a semiconducting single-walled carbon nanotube (s-SWCNT) and a PC71 BM blended active layer. Magnetic-field effects and the chirality of the s-SWCNTs play an important role in controlling the photoresponse time and photocurrent improvement.