Son Dong Ick, Oh Do Hyun, Jung Jae Hun, Kim Tae Whan
Department of Information Display Engineering, Hanyang University, Seoul 133-791, Korea.
J Nanosci Nanotechnol. 2011 Jan;11(1):711-5. doi: 10.1166/jnn.2011.3171.
Scanning electron microscopy and energy-dispersive spectrometer images of hybrid nanocomposites of ZnO nanoparticles capped with a poly N-vinylcarbazole (PVK) that was fabricated using the spin-coating technique showed that the ZnO nanoparticles were capped with a PVK polymer layer. The measurement of the current-voltage (I-V) of the Al/ZnO nanoparticles capped with a PVK layer/indium-tin-oxide/glass devices at 300 K showed electrical bistability and negative differential resistance, which indicate the nonvolatile nature of the memory effect of the electron captured in the ZnO nanoparticles. The charging and discharging mechanisms of the organic bistable devices that were fabricated using hybrid nanocomposites of ZnO nanoparticles capped with a PVK layer are described based on the I-V results.
使用旋涂技术制备的聚N-乙烯基咔唑（PVK）包覆的ZnO纳米颗粒杂化纳米复合材料的扫描电子显微镜和能量色散光谱图像显示，ZnO纳米颗粒被PVK聚合物层包覆。在300 K下对Al/PVK层包覆的ZnO纳米颗粒/铟锡氧化物/玻璃器件的电流-电压（I-V）测量显示出电双稳性和负微分电阻，这表明捕获在ZnO纳米颗粒中的电子的记忆效应具有非易失性。基于I-V结果描述了使用PVK层包覆的ZnO纳米颗粒杂化纳米复合材料制备的有机双稳态器件的充放电机制。
