Selective Dispersion of Large-diameter Semiconducting Carbon Nanotubes Using Conjugated Polymers for Near-infrared Detectors
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초록
내용
Single-walled carbon nanotube (SWNT) is a promising candicate for infrared (IR) detectors due to its strong optical absorption in IR wavelength region, excellent charge carrier mobility and solution processability. Because large-diameter semiconducting SWNT (sc-SWNT) shows narrow band gap and weak exciton binding energy, it is advantageous to utilize large-diameter sc-SWNTs for IR detectors. For the use of sc-SWNTs, it is necessary to sort tubes with certain kinds of electrical properties from as-synthesized SWNTs bundles. Here, we report the sorting technique of large-diameter sc-SWNTs by conjugated polymers and high performances of sc-SWNT IR detectors.