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. 2026 Mar 6;12(10):eaeb5852. doi: 10.1126/sciadv.aeb5852

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Copyright © 2026 The Authors, some rights reserved; exclusive licensee American Association for the Advancement of Science. No claim to original U.S. Government Works. Distributed under a Creative Commons Attribution NonCommercial License 4.0 (CC BY-NC).

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Fig. 4. — (A) Circuit diagram and optical microscope image of the zero V_gs-load amplifier based on flexible CNT-TFTs. Scale bar, 20 μm. (B) Output characteristics of a CNT-TFT illustrating the NDR-to-PDR transition, with the supersaturation curve that produces intrinsic gain singularities adjusted to be around V_gs = 0 V via device-level design. (C) Output characteristics and (D) gain characteristics of the flexible high-gain amplifier. (E) Comparison of the gain of flexible single-stage amplifiers versus supply voltage (V_DD). For references, see table S1. (F) Playback EEG signals and their amplified outputs from the amplifier (top), along with the corresponding power spectral density (bottom).