氧化锌基薄膜晶体管(ZnO-TFT)器件的性能受到多种因素的影响,如半导体有源层、栅介质层的质量、栅介质与有源层的界面质量,其中有源层的质量起到至关重要的作用,而在影响器件有源层方面,制备方法是其中一个重要的因素.目前,已有多种ZnO半导体有源层制备技术应用于ZnO-TFT的制备(如原子层沉积、脉冲激光沉积、射频磁控溅射、溶液法等).为了更直观地了解各种制备技术所获得的ZnO-TFT器件性能的优劣,并让研究者在选择制备技术时有所参考,文章概述了各种有源层制备技术的特点,并比较了这些制备方法所制备的ZnO TFT器件性能.通过对比各器件性能参数可以发现,脉冲激光沉积和射磁控溅射所制备的ZnO有源层具有较优的性质,并被广泛使用.文章还对ZnO-TFT的优化方法做了简单介绍.
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