Light-Induced Positive and Negative Photoconductances of InAs Nanowires toward Rewritable Nonvolatile Memory

Xutao Zhang, Ziyuan Li, Xiaomei Yao, Hai Huang, Dongdong Wei, Chen Zhou, Zhou Tang, Xiaoming Yuan, Pingping Chen*, Weida Hu, Jin Zou, Wei Lu*, Lan Fu

*Corresponding author for this work

    Research output: Contribution to journalArticlepeer-review

    17 Citations (Scopus)

    Abstract

    Here, we demonstrate that single InAs nanowire (NW)-based field-effect transistor exhibits wavelength-selective switching between positive and negative photoresponses caused by abundant defect states on the NW surface. On this basis, by modifying the NW carrier transport behavior through the strong local electric field formed by polarized ferroelectric polymer P(VDF-TrFE), a rewritable NW memory device can be achieved with electrical bistability and low-power consumption when writing with different wavelength light pulses without any gate voltage. Our study clearly reveals the significant role of the NW surface states in not only photodetecting devices but also promising novel nonvolatile light-assisted memory devices for numerous future applications.

    Original languageEnglish
    Pages (from-to)1825-1831
    Number of pages7
    JournalACS Applied Electronic Materials
    Volume1
    Issue number9
    DOIs
    Publication statusPublished - 24 Sept 2019

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