fig7

Figure 7. Photothermal effect-enhanced EEG devices. (A) Schematic illustration of pump-inspired MXene-based EEG. Reproduced with the permission of Ref.^[72] Copyright © 2021 American Chemical Society. (B) Schematic illustration of photothermal effect-enhanced MXene/SVO EEG. Reproduced with the permission of Ref.^[73] Copyright © 2024 American Chemical Society. (C) Schematic diagram of the working process of IEHVG. (D) Device structure of IEHVG. (E) The comparison of positive ion concentration for IEHVG and IENG. (F) Schematic representation of the hydrovoltaic contribution in the IEHVG system. Reproduced with the permission of Ref.^[74] Copyright © 2024 Wiley-VCH.