Infrared response and optoelectronic memory device fabrication based on epitaxial VO2 film

Lele Fan, Yuliang Chen, Qianghu Liu, Shi Chen, Lei Zhu, Qiangqiang Meng, Baolin Wang, Qinfang Zhang, Hui Ren, Chongwen Zou

Research output: Contribution to journalArticlepeer-review

85 Citations (Scopus)

Abstract

In this work, high-quality VO2 epitaxial films were prepared on high-conductivity n-GaN (0001) crystal substrates via an oxide molecular beam epitaxy method. By fabricating a two-terminal VO2/GaN film device, we observed that the infrared transmittance and resistance of VO2 films could be dynamically controlled by an external bias voltage. Based on the hysteretic switching effect of VO2 in infrared range, an optoelectronic memory device was achieved. This memory device was operated under the "electrical writing-optical reading" mode, which shows promising applications in VO2-based optoelectronic device in the future.
Original languageEnglish
Pages (from-to)32971-32977
Number of pages7
JournalACS Applied Materials and Interfaces
Volume8
Issue number48
DOIs
Publication statusPublished - 2016

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