| 초록 |
Hybrid systems can generate new functionality or offer synergistic interactions enhancing the nature of respective materials making the best use of their different electrical/optical properties. Herein, opto-electrical performances of near-infrared (NIR) phototransistors based on gold nanorods (Au NRs)-decorated n-type organic semiconductor, N,N’-bis(2-phenylethyl)-perylene-3,4:9,10-tetracarboxylic diimide (BPE-PTCDI) nanowire (NW) are reported. By way of the synergistic effect from excellent photo-electrical characteristics of single-crystalline organic semiconductor BPE-PTCDI NW and localized surface plasmon resonances (LSPR) of Au NRs, the hybrid system accomplishes widened photo-detecting area from ultraviolet (UV) to NIR region with highly enhanced photo-responsivity (R), photo-current/dark-current ratio (P), and external quantum efficiency (EQE) under monochromatic light irradiation compared with those of pristine BPE-PTCDI NW-based phototransistors. |
