DataVXACS Applied Materials & InterfacesPaper
journal article·2025-04-09

Thermoelectric Composites Based on Porous Laser-Induced Graphene and Ion Hydrogel

Hui Zhang, Houze Yang, Mingyang Xin, Zihan Wang, Hongyu Zhang, Ankan Dutta, Huanyu Cheng, Li Yang

ACS Applied Materials & Interfaces· Volume 17· Issue 14
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Source abstract

Abstract

Despite the rapid development of single-modal flexible sensors, there is an urgent need to develop self-powered multimodal flexible sensing devices to eliminate power constraints. This work reports stretchable thermoelectric composites based on porous laser-induced graphene foams and an ion hydrogel, aiming to create a self-powered sensor that can detect temperature changes and strain with high accuracy. The self-powered strain sensor based on 3D porous laser-induced graphene (LIG) foam exhibits a high maximum sensitivity of 105.9 for strain up to 30%, a low detection limit of 0.071%, and good stability over 5,000 cycles at 30% strain. With an increased Seebeck coefficient of -189.90 μV/K, the sensor can also detect temperatures in the range of -10-100 °C with a resolution of 0.1 °C. The thermoelectric power generation array with integrated units can achieve an output voltage of 104.18 mV for a temperature difference of 20 °C. By combining the electronic thermoelectric material LIG and the ionic thermoelectric material NKKC/PFF, the dual-parameter sensors demonstrate high potential in human health monitoring, smart storage, and bathroom systems. The reported thermoelectric composites can be further utilized in temperature-strain decoupled sensing for battery monitoring, smart garments, and medical applications.
Source: openalex_inverted_index · Quality: baseline

Research context

Energy storagePolymersNanomaterialsComposites

OpenAlex topics: Advanced Sensor and Energy Harvesting Materials · Advanced Thermoelectric Materials and Devices · Supercapacitor Materials and Fabrication

SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.

Affiliations

State Key Laboratory of Reliability and Intelligence of Electrical Equipment, Key Laboratory of Bioelectromagnetics and Neuroengineering of Hebei Province, School of Electrical Engineering

Hebei University of Technology

State Key Laboratory of Reliability and Intelligence of Electrical Equipment, School of Health Sciences and Biomedical Engineering

State Key Laboratory for Reliability and Intelligence of Electrical Equipment, Hebei Key Laboratory of Smart Sensing and Human-Robot Interaction, School of Mechanical Engineering

School of Architecture and Art Hebei University of Technology

Department of Engineering Science and Mechanics

The Pennsylvania State University, University Park

Tianzhong Yimai Technology Development Co., Ltd

Funding

Natural Science Foundation of Hebei Province · Natural Science Foundation of Tianjin Municipality · Hebei Province Science and Technology Support Program · China Postdoctoral Science Foundation · Pennsylvania State University · National Natural Science Foundation of China · National Institutes of Health · National Science Foundation

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