Toward Highly Robust Nonvolatile Multilevel Memory by Fine Tuning of the Nanostructural Crystalline Solid-State Order

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

2 Scopus Citations
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Author(s)

  • Yang Li
  • Cheng Zhang
  • Songtao Ling
  • Chunlan Ma
  • Jinlei Zhang
  • Yucheng Jiang
  • Run Zhao
  • Hua Li
  • Jianmei Lu

Detail(s)

Original languageEnglish
Article number2100102
Journal / PublicationSmall
Volume17
Issue number19
Online published31 Mar 2021
Publication statusPublished - 12 May 2021

Abstract

Organic resistive memory (ORM) offers great promise for next-generation high-density multilevel-cell (MLC) data storage. However, the fine tuning of crystalline order among its active layer still remains challenging, which largely restricts ORM behavior. Here, an exceptional solid-state transition from disordered orientations to highly-uniform orientation within the ORM layer is facilely triggered via molecular strategic tailoring. Two diketopyrrolopyrrole-based small molecular analogues (NI1TDPP and NI2TDPP) are demonstrated to display different symmetry. The asymmetric NI1TDPP shows an irregular solid-state texture, while the centro-symmetric NI2TDPP conforms to an ordered out-of-plane single-crystalline pattern that aligns with the foremost charge transportation along the substrate normal, and exhibits excellent MLC memory characteristics. Moreover, this highly oriented pattern guarantees the large-area film uniformity, leading to the twofold increase in the yield of as-fabricated ORM devices. This study reveals that the solid-state crystalline nanostructural order of organic materials can be controlled by reasonable molecular design to actuate high-performance organic electronic circuits.

Research Area(s)

  • data storage, microscale, multilevel, nonvolatile memory, organic electronics

Citation Format(s)

Toward Highly Robust Nonvolatile Multilevel Memory by Fine Tuning of the Nanostructural Crystalline Solid-State Order. / Li, Yang; Zhang, Cheng; Ling, Songtao; Ma, Chunlan; Zhang, Jinlei; Jiang, Yucheng; Zhao, Run; Li, Hua; Lu, Jianmei; Zhang, Qichun.

In: Small, Vol. 17, No. 19, 2100102, 12.05.2021.

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