美国《科学》杂志在线发表了由中国科学院北京纳米能源与系统研究所和中科院外籍院士、美国佐治亚理工学院王中林研究小组联合完成的一项重要研究成果。
科学家基于他们于2006年发现的压电电子学效应，发明了具有全新结构的晶体管，并首次研制出由大规模三维压电电子学晶体管阵列组成的，具有柔软、透明和主动自适应性能的压力传感成像芯片。
该芯片的成功研制是纳米科技发展中从单个器件飞跃到阵列器件的里程碑。这种新型结构晶体管的发明有望推动传统电子技术方面的革命性飞跃；该类芯片具有对环境外力的主动响应和交互作用的功能，将可发展出多维度压力传感器、智能自适应触摸成像技术、自驱动系统和人机交互系统等，有望在健康监护、环境监测、新能源开发利用、物联网及其他信息技术领域形成广泛的应用。
据悉，论文通讯作者王中林是中国科学院北京纳米能源与系统研究所首席科学家。（生物谷Bioon.com）
doi: 10.1126/science.1234855
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Taxel-Addressable Matrix of Vertical-Nanowire Piezotronic Transistors for Active/Adaptive Tactile Imaging
Wenzhuo Wu, Xiaonan Wen, Zhong Lin Wang
Designing, fabricating, and integrating arrays of nanodevices into a functional system is the key for transferring nanoscale science into applicable nanotechnology. We report large-array three-dimensional (3D) circuitry integration of piezotronic transistors based on vertical zinc oxide nanowires as active taxel-addressable pressure/force-sensor matrix for tactile imaging. Using the piezoelectric polarization charges created at metal-semiconductor interface under strain to gate/modulate transport process of local charge carriers, piezotronic effect has been applied to design independently addressable two-terminal transistor arrays, which convert mechanical stimuli applied on the devices into local electronic controlling signals. The device matrix has been demonstrated for achieving shape-adaptive high-resolution tactile imaging and self-powered, multidimensional active sensing. The 3D piezotronic transistor array may have applications in human-electronics interfacing, smart skin, and micro/nano-electromechanical systems.
