Small hysteresis nanocarbon-based integrated circuits on flexible and transparent plastic substrate.
Small hysteresis nanocarbon-based integrated circuits on flexible and transparent plastic substrate.
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DOI：
10.1021/nl104488z
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发表时间：
2011-02
期刊：
影响因子：
10.8
通讯作者：
W. Yu;S. Lee;S. Chae;D. Perello;G. Han;M. Yun;Young Hee Lee
中科院分区：
文献类型：
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作者：
W. Yu;S. Lee;S. Chae;D. Perello;G. Han;M. Yun;Young Hee Lee
我们通过引入单层石墨烯作为电极和单壁碳纳米管网络作为通道来报道小型磁滞集成电路。该器件的小滞后源于无缺陷的石墨烯表面，其中滞后通过氧化进行调节。这种独特组合的纳米碳材料器件具有透明和柔性的特性，显示出卓越的器件性能；亚阈值电压为220 mV十倍(-1)，工作电压小于5 V，开关比约为10(4)，迁移率为81 cm(2) V(-1) s(-1)，包括基板在内的透明度为83.8%，1000次弯曲测试跨导无明显变化，拉伸应变50%时电阻仅下降36%。此外，由于石墨烯和碳纳米管之间接近欧姆接触的性质，与金电极相比，该器件的接触电阻低 100 倍，迁移率高 20 倍。
We report small hysteresis integrated circuits by introducing monolayer graphene for the electrodes and a single-walled carbon nanotube network for the channel. Small hysteresis of the device originates from a defect-free graphene surface, where hysteresis was modulated by oxidation. This uniquely combined nanocarbon material device with transparent and flexible properties shows remarkable device performance; subthreshold voltage of 220 mV decade(-1), operation voltage of less than 5 V, on/off ratio of approximately 10(4), mobility of 81 cm(2) V(-1) s(-1), transparency of 83.8% including substrate, no significant transconductance changes in 1000 times of bending test, and only 36% resistance decrease at a tensile strain of 50%. Furthermore, because of the nearly Ohmic contact nature between the graphene and carbon nanotubes, this device demonstrated a contact resistance 100 times lower and a mobility 20 times higher, when compared to an Au electrode.