利用化学气相沉积法在Si/SiO2衬底上生长出了InP纳米线,制备了基于InP纳米线的底栅场效应晶体管并研究了其电输运特性.对不同生长温度器件的阈值电压、亚阈值斜率、场效应迁移率以及载流子浓度等参数进行了计算和比较.结果表明,生长温度对InP纳米线的形貌影响较大.800℃生长温度的InP纳米线性能较好,该器件阈值电压约为-8.5V,亚阈值斜率为142.4 mV/decade,跨导为258.6 nS,开关比＞106,场效应迁移率高达177.8cm2/(V·s),载流子浓度达2.1×101s cm-3.
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