![]() The design strategy, manufacturing method, and potential application of each type of sensor are discussed. This review summarizes the recent advances in multifunctional wearable sensors, including single sensors with various functions, planar integrated sensors, three-dimensional assembled sensors, and stacked integrated sensors. Due to the complexity of human physiological signals, it is necessary to measure multiple physiological information simultaneously to evaluate human health comprehensively. Owing to the tremendous efforts of scientists, wearable sensors and systems with attractive advantages such as flexibility, comfort, and long-term stability have been developed, which are widely used in temperature monitoring, pulse wave detection, gait pattern analysis, etc. Multifunctional wearable sensors and systems are of growing interest over the past decades because of real-time health monitoring and disease diagnosis capability. Source data are provided as a Source Data file. The sensitivities are normalized to Vpp of 3.3 V. i Histograms of the sensitivities for the working sensors on the XY, XZ, YZ planes in a typical 8 × 8 sensor array. ![]() The right inset shows the orientations of the sensitivity directions of SXY, SXZ, and SYZ. The left inset shows the 45° angle between the bias current and the magnetization direction. h Typical responses of the SXY, SXZ and SYZ sensors. ![]() g Schematic illustration of the layer stack of the AMR sensors. The leakage currents are plotted in gray lines. e Typical transfer characteristics with VGS from -2 V to 3.3 V for the a-IGZO TFTs. The Wheatstone bridge type AMR sensors on the three orthogonal planes are marked as SXY, SXZ and SYZ respectively. ![]() c, d Exploded schematic and circuit diagram of a single pixel which contains three subpixels. b Image of the pixel array in the device. Structure and magnetoelectrical performance of the IMOS deviceĪ Photo of an IMOS device with 8 × 8 pixel matrix. ![]()
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