Printed Nonvolatile Memory for a Sheet-Type Communication System
Printed Nonvolatile Memory for a Sheet-Type Communication System
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DOI：
10.1109/ted.2009.2015169
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发表时间：
2009-05-01
影响因子：
3.1
通讯作者：
Someya, Takao
中科院分区：
文献类型：
--
作者：
Sekitani, Tsuyoshi;Zaitsu, Koichiro;Someya, Takao
通过使用最先进的印刷技术和功能性墨水，我们展示了具有无损读出能力和时间连续电流输出的有机非易失性灵活随机存取存储器矩阵；即使基于硅的传统存储器也无法同时实现这些功能。包括三个晶体管的存储单元通过喷墨印刷和其他基于溶液的工艺变得可能，其可以在平面塑料基板内适当地使用铁电共聚物、包含聚(偏二氟乙烯-三氟乙烯)的油墨和包含聚酰亚胺前体的绝缘油墨。当在 135 摄氏度下退火时，在空气中观察到 10(5) 的大“1:01”电流比，该电流比足够低，足以与许多塑料基板兼容。当储存在空气中时，15天后“1:0”比例仍为10(4)，5个月后仍为10(3)，足以满足实际应用。此外，利用大面积有机存储器制造了人体规模的通信片，作为首次演示。
By using state-of-the-art printing technologies and functional inks, we have demonstrated organic nonvolatile flexible random-access-memory matrices with a nondestructive read-out capability and a time-continuous current output; these functionalities have not been simultaneously achieved even by silicon-based conventional memory. A memory cell comprising three transistors becomes possible with inkjet printing and other solution-based processes, which can use ferroelectric copolymer,ink comprising poly(vinylidenefluoride-co-trifluoroethylene) and insulating ink comprising polyimide precursors properly within the planer plastic substrate. A large "1:01" current ratio of 10(5) is observed in air when it is annealed at 135 degrees C, which is sufficiently low to be compatible with many plastic substrates. When stored in air, the "1:0" ratio was still 10(4) after 15 days and 10(3) after 5 months, which is sufficient for practical applications. Furthermore, human-scale communication sheets were manufactured as the first demonstration utilizing large-area organic memories.