Qipei He

ORCID: 0000-0002-5918-0777
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About
Contact & Profiles
Research Areas
  • Advanced Sensor and Energy Harvesting Materials
  • Tactile and Sensory Interactions
  • Biomimetic flight and propulsion mechanisms
  • Analytical Chemistry and Sensors
  • Gas Sensing Nanomaterials and Sensors
  • Semiconductor materials and devices
  • Advanced Materials and Mechanics
  • Non-Invasive Vital Sign Monitoring
  • Interactive and Immersive Displays
  • Mechanical and Optical Resonators
  • Gaze Tracking and Assistive Technology
  • Marine animal studies overview
  • Advanced Welding Techniques Analysis
  • Innovative Energy Harvesting Technologies
  • Integrated Circuits and Semiconductor Failure Analysis
  • Aerospace and Aviation Technology
  • Modular Robots and Swarm Intelligence
  • Structural Load-Bearing Analysis
  • Advanced Memory and Neural Computing
  • Water Quality Monitoring Technologies
  • Synthesis and properties of polymers
  • Underwater Vehicles and Communication Systems
  • Nanofabrication and Lithography Techniques
  • Advanced MEMS and NEMS Technologies
  • Plasma and Flow Control in Aerodynamics

Beihang University
1991-2025

Southwest Jiaotong University
2018

Carbon-based piezoresistive nanomaterials are widely used for the fabrication of flexible sensors. Although our previous work demonstrated that an electrical breakdown (EBD) process can endow a graphene/polyimide (G/PI) composite with piezoresistivity, formation EBD-induced traces high consistency in bulk nanocomposites remains technical challenge. With aim developing highly sensitive strain sensors using batch process, we introduce herein microscale EBD (μEBD) method to form localized...

10.1021/acsami.0c19484 article EN ACS Applied Materials & Interfaces 2020-12-15

Abstract The impact of human activities and social industrialization on the marine environment aquatic life cannot be underestimated. By utilizing information transmission intermediates such as underwater wearable sensors, it is possible to promptly precisely assess state environment, well behavior biological populations, thereby ensuring accurate protection ecology. Flexible electronic tags maintain monitoring performance while addressing biocompatibility sensors. When tag attached an...

10.1002/admt.202302222 article EN Advanced Materials Technologies 2024-03-18

Multiple ocular surface disorders are associated with the mechanical properties of interface between eyelid and cornea. Determining pressure is vital for diagnosing preventing these disorders. However, current measurements rely on flat piezoresistive sensor arrays that lack eye-motion sensing capabilities, resulting in discomfort measurement inaccuracies. This study develops evaluates an integrated, curved, flexible, dual-mode array simultaneous motion detection, using soft thermoplastic...

10.1021/acsami.4c21230 article EN ACS Applied Materials & Interfaces 2025-01-22

Flexible pressure sensors demonstrate promising potential in human–machine interfaces, wearable devices, and implantable electronics. In this study, a highly sensitive sensor was developed, comprising polyimide substrate with high-density micropyramid array (HD-μPA), an active piezoelectric component of poly(vinylidenefluoride-co-trifluoroethylene) [P(VDF-TrFE)]/barium titanate (BTO) nanofiber mat, silver nanowires (AgNWs) as the top electrode. A mold for imprinting HD-μPA fabricated by...

10.1021/acsapm.0c00411 article EN ACS Applied Polymer Materials 2020-10-15

Aiming to develop a self-powered bioelectric tag for fish behavioral studies, here we present fish-wearable piezoelectric nanogenerator (FWPNG) that can simultaneously harvest the strain energy and flow impact caused by fish-tailing. The FWPNG is fabricated transferring 2 μm-thick Nb0.02-Pb(Zr0.6Ti0.4)O3 (PZT) layer from silicon substrate spin-coated polyimide film via novel zinc oxide (ZnO) release process. open-circuit voltage of harvester reaches 2.3 V under 1% at an ultra-low frequency 1...

10.1021/acsami.3c08221 article EN ACS Applied Materials & Interfaces 2023-08-10

Abstract Marine hydrological information has a significant impact on human development and the utilization of oceans, which can be monitored with underwater sensors. In past, ocean research relied use bulky recorders sensory telemetry networks. this study, an integrated flexible sensor is developed for conductivity, temperature, depth, strain detection. Platinum resistance sensors were used temperature measurements, conductivity interdigitated electrodes salinity capacitive pressure depth...

10.1088/2058-8585/ac94df article EN Flexible and Printed Electronics 2022-09-26

Abstract Ocean research currently relies heavily on bulky bioelectronic tags and sensory telemetry networks for data collection. Therefore, in this study, a compact flexible waterproof tag with kirigami (paper cutting)‐based design underwater conductivity, temperature, depth, strain sensing is designed evaluated. Unlike invasive tags, the can be attached to robotic fish or aquatic animals without harming host. The kirigami‐based facilitates excellent stretchability reduces stress within...

10.1002/admt.202300982 article EN Advanced Materials Technologies 2023-10-02

Abstract Lateral line system of fish performs hydrodynamic flow‐field perception with ultrasensitivity via mechanosensory neuromasts, which vary in geometrical dimension and sensitivity for a wide detection range. To achieve tunable range engineered sensors, here we present pressure sensor inspired by the canal lateral fish, comprises microfluidic canal, piezoelectric microcantilevers integrated thermoresponsive hydrogel cupulae microheaters. The poly( N ‐isopropylacrylamide)‐based cupula...

10.1002/app.50023 article EN Journal of Applied Polymer Science 2020-10-09

A nondestructively patterned silicon substrate serves as an ideal support for forming high-quality optical structures or devices. new approach was proposed fabricating site-controlled without destruction on a monocrystalline surface via local anodic oxidation (LAO) and two-step postetching. The nondestruction demonstrated by conductivity detection with conductive atomic force microscopy (AFM), almost perfect crystal lattice observed from the fabricated hillock high-resolution transmission...

10.7567/apex.11.116501 article EN Applied Physics Express 2018-10-04

The estimation of the airspeed and angle attack (AOA) is crucial for achieving precise flight control in small unmanned aerial vehicles. A flexible skin with distributed flow sensors has been proven to be an effective approach estimate parameters, particularly, pressure-airflow data fusion strategies can improve accuracy. For first time, we propose ultrathin ( <inline-formula xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink"> <tex-math...

10.1109/jsen.2023.3324809 article EN IEEE Sensors Journal 2023-10-20

In this study, we developed an all-polyimide flexible airflow sensor, which consisted of four hair-like curved polyimide (PI) cantilever beams arranged in a cross-form configuration and graphene/polyimide (Gr/PI) nanocomposite-based piezoresistors. Electrical breakdown process was applied to fabricate the Gr/PI piezoresistors . As travels through cantilevers, will be deformed, leads corresponding change resistances sensor is fully flexible, it can fit on surfaces. To compensate ambient...

10.1109/nems50311.2020.9265571 article EN 2020-09-27
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