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Gate Tunable Asymmetric Ozone Adsorption on Graphene

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arxiv 2405.06041 v1 pith:M3SGKSO2 submitted 2024-05-09 cond-mat.mes-hall cond-mat.mtrl-sci

Gate Tunable Asymmetric Ozone Adsorption on Graphene

Zhen Qi , Wanlei Li , Jun Cheng , Zhongxin Guo , Chenglong Li , Shang Wang , Zuoquan Tan , Zhiting Gao
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Yongchao Wang Zichen Lian Shanshan Chen Yonglin He Zhiyong Wang Yapei Wang Jinsong Zhang Yayu Wang Peng Cai
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classification cond-mat.mes-hall cond-mat.mtrl-sci
keywords adsorptiongrapheneozonegatematerialsquantumstrongaffinity
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Molecular adsorption is pivotal in device fabrication and material synthesis for quantum technology. However, elucidating the behavior of physisorption poses technical challenges. Here graphene with ultrahigh sensitivity was utilized to detect ozone adsorption at cryogenic temperatures. Significant hole doping observed in graphene indicates a strong interaction between ozone and graphene. Interestingly, the adsorption exhibits asymmetry with positive and negative gate voltages. The strong affinity of ozone provides a tool to modulate materials and devices, while the gate tunability of adsorption offers new insights into construction and manipulation of oxide quantum materials.

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