Infrared-Sensitive Memory Based on Direct-Grown MoS2–Upconversion-Nanoparticle Heterostructure

Research output: Journal Publications and ReviewsRGC 21 - Publication in refereed journalpeer-review

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Author(s)

  • Yongbiao Zhai
  • Zongxiao Li
  • Guanglong Ding
  • Zhifan Qiu
  • Yan Wang
  • Ye Zhou
  • Su-Ting Han

Detail(s)

Original languageEnglish
Article number1803563
Journal / PublicationAdvanced Materials
Volume30
Issue number49
Online published10 Oct 2018
Publication statusPublished - 6 Dec 2018

Abstract

Photonic memories as an emerging optoelectronic technology have attracted tremendous attention in the past few years due to their great potential to overcome the von Neumann bottleneck and to improve the performance of serial computers. Nowadays, the decryption technology for visible light is mature in photonic memories. Nevertheless, near-infrared (NIR) photonic memristors are less progressed. Herein, an NIR photonic memristor based on MoS2–NaYF4:Yb3+, Er3+ upconversion nanoparticles (UCNPs) nanocomposites is designed. Under excitation by 980 nm NIR light, the UCNPs show emissions well overlapping with the absorption band of the MoS2 nanosheets. The heterostructure between the MoS2 and the UCNPs acting as excitons generation/separation centers remarkably improves the NIR-light-controlled memristor performance. Furthermore, in situ conductive atomic force microscopy is employed to elucidate the photo-modulated memristor mechanism. This work provides novel opportunities for NIR photonic memory that holds promise in future multifunctional robotics and electronic eyes.

Research Area(s)

  • heterostructures, infrared light stimuli, MoS2, photonic memories, upconversion nanoparticles

Citation Format(s)

Infrared-Sensitive Memory Based on Direct-Grown MoS2–Upconversion-Nanoparticle Heterostructure. / Zhai, Yongbiao; Yang, Xueqing; Wang, Feng et al.
In: Advanced Materials, Vol. 30, No. 49, 1803563, 06.12.2018.

Research output: Journal Publications and ReviewsRGC 21 - Publication in refereed journalpeer-review