Charge-coupled devices (CCD) and charge storage devices (Memory), as two independent branches in modern electronic systems, have developed along their respective paths. Carbon-based prototype devices with photoelectric sensing and storage functions have not been reported yet. Recently, the Institute of Metal Research of the Chinese Academy of Sciences (hereinafter referred to as the Institute of Metals) Shenyang National Research Center for Materials Science, in conjunction with the Suzhou Institute of Nanotechnology and the Jilin University of the Chinese Academy of Sciences, published an online titled "Flexible Carbon Nanotube Sensing-Memory Papers.
It is reported that researchers have proposed a carbon nanotube non-volatile memory based on aluminum nanocrystalline floating gates, which has a high current switching ratio, a storage time of up to 10 years, and stable read and write operations. Multiple discrete aluminum nanocrystals Floating gate devices have stable flexible performance.
Sun Dongming, a researcher at the Institute of Metals, said: "We have implemented optical image sensing and image storage based on carbon nanotubes for the first time, laying the foundation for the development of new flexible light detection and storage devices.
In addition, researchers use semiconductor carbon nanotube film as the channel material, and use a uniformly distributed aluminum nanocrystal / alumina integrated structure as the floating gate layer and tunneling layer to obtain high-performance flexible carbon nanotube floating gate memory. At the same time, the thinner aluminum oxide tunneling layer can significantly improve the closed-state current, complete the direct conversion and transmission of photoelectric signals, and create a new multi-functional photoelectric sensing and storage system that integrates image sensing and information storage. Wearable electronics and special environment detection systems provide new device design methods. (Shen Chunlei Liu Yan)
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