Topochemical Synthesis of Copper Phosphide Nanoribbons for Flexible Optoelectronic Memristors

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journalpeer-review

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Author(s)

  • Yanxin Liu
  • Lie Wu
  • Qian Liu
  • Lei Liu
  • Shanwu Ke
  • Zehui Peng
  • Tongyu Shi
  • Xinru Yuan
  • Hao Huang
  • Jia Li
  • Cong Ye
  • Jiahong Wang
  • Xue-Feng Yu

Detail(s)

Original languageEnglish
Article number2110900
Journal / PublicationAdvanced Functional Materials
Publication statusOnline published - 1 Dec 2021

Abstract

Metal phosphide nanoribbons are suitable building blocks for flexible photoelectronic microdevices due to the special electronic structure, large contact area, and excellent mechanical properties. In this work, single-crystal copper phosphide nanoribbons (Cu3P NRs) are prepared topochemically from crystalline red phosphorus nanoribbons (cRP NRs) to retain the cRP morphology. The Cu3P NRs are used to construct flexible photoelectronic memristors on the ITO/PEN substrate with the native oxidized shell of Cu3P NRs serving as the charge trapping layer to modulate the resistance switching characteristics. The Cu3P NRs-based memristors have outstanding nonvolatile memory properties in different mechanical bending states and different bending times. Optically and electrically modulated artificial synaptic functions are observed from the Cu3P NRs-based memristors and owing to the memory backtracking function, pattern recognition is achieved with the Ag/Cu3P/ITO artificial synapse array. The topochemical synthesis method constitutes a universal approach to produce nanostructured compounds with an unusual morphology and specific crystalline orientation. The results also reveal that metal phosphides are excellent materials in memristors for future optoelectronic neuromorphic computing.

Research Area(s)

  • 2D, flexible memristors, metal phosphides, neuromorphic computing, topochemical synthesis

Citation Format(s)

Topochemical Synthesis of Copper Phosphide Nanoribbons for Flexible Optoelectronic Memristors. / Liu, Yanxin; Wu, Lie; Liu, Qian; Liu, Lei; Ke, Shanwu; Peng, Zehui; Shi, Tongyu; Yuan, Xinru; Huang, Hao; Li, Jia; Ye, Cong; Chu, Paul K.; Wang, Jiahong; Yu, Xue-Feng.

In: Advanced Functional Materials, 01.12.2021.

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journalpeer-review