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An upconverted photonic nonvolatile memory

Author

Listed:
  • Ye Zhou

    (City University of Hong Kong)

  • Su-Ting Han

    (City University of Hong Kong)

  • Xian Chen

    (City University of Hong Kong)

  • Feng Wang

    (City University of Hong Kong
    Shenzhen Research Institute, City University of Hong Kong, High-Tech Zone, Nanshan District, Shenzhen 518057, China)

  • Yong-Bing Tang

    (Shenzhen Institutes of Advanced Technology, Chinese Academy of Sciences)

  • V.A.L. Roy

    (City University of Hong Kong
    Shenzhen Research Institute, City University of Hong Kong, High-Tech Zone, Nanshan District, Shenzhen 518057, China
    Center of Super-Diamond and Advanced Films, and State Key Laboratory of Millimeter Waves, City University of Hong Kong)

Abstract

Conventional flash memory devices are voltage driven and found to be unsafe for confidential data storage. To ensure the security of the stored data, there is a strong demand for developing novel nonvolatile memory technology for data encryption. Here we show a photonic flash memory device, based on upconversion nanocrystals, which is light driven with a particular narrow width of wavelength in addition to voltage bias. With the help of near-infrared light, we successfully manipulate the multilevel data storage of the flash memory device. These upconverted photonic flash memory devices exhibit high ON/OFF ratio, long retention time and excellent rewritable characteristics.

Suggested Citation

  • Ye Zhou & Su-Ting Han & Xian Chen & Feng Wang & Yong-Bing Tang & V.A.L. Roy, 2014. "An upconverted photonic nonvolatile memory," Nature Communications, Nature, vol. 5(1), pages 1-8, December.
    • Handle: RePEc:nat:natcom:v:5:y:2014:i:1:d:10.1038_ncomms5720
    DOI: 10.1038/ncomms5720
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    Cited by:

    1. Junhwan Choi & Changhyeon Lee & Chungryeol Lee & Hongkeun Park & Seung Min Lee & Chang-Hyun Kim & Hocheon Yoo & Sung Gap Im, 2022. "Vertically stacked, low-voltage organic ternary logic circuits including nonvolatile floating-gate memory transistors," Nature Communications, Nature, vol. 13(1), pages 1-10, December.

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