Lab-on-device investigation of phase transition in MoOx semiconductors

Xiaoci Liang, Dongyue Su, Younian Tang, Bin Xi, Chunzhen Yang, Huixin Xiu, Jialiang Wang, Chuan Liu (), Mengye Wang () and Yang Chai ()
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Xiaoci Liang: Sun Yat-Sen University
Dongyue Su: Sun Yat-Sen University
Younian Tang: Sun Yat-sen University
Bin Xi: Sun Yat-sen University
Chunzhen Yang: Sun Yat-Sen University
Huixin Xiu: University of Shanghai for Science and Technology
Jialiang Wang: Hung Hom
Chuan Liu: Sun Yat-Sen University
Mengye Wang: Sun Yat-Sen University
Yang Chai: Hung Hom

Nature Communications, 2025, vol. 16, issue 1, 1-12

Abstract: Abstract Precise tuning of phase transition material properties enables multifunctional devices for information processing and energy conversion, but controlling on-device phase transitions and monitoring microscopic mechanisms remains challenging. Here, we develop a lab-on-device system for molybdenum oxide to probe operando hydrogenation mechanisms through in situ electrical and spectral characterization with density functional theory calculations, revealing threshold-driven proton dynamics that govern the transition between nonvolatile memory operation and catalytic hydrogen evolution. Moderate proton intercalation (flux

Date: 2025
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DOI: 10.1038/s41467-025-60050-7

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