J. Chen

Chinese Academy of Sciences

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Huawei Zhang

Peking University

Juchen Zhang

Chinese Academy of Sciences

Bao Lin Liu

Henan University

Baogen Shen

University of Chinese Academy of Sciences

R. Q. Jin

University of Oxford

M. F. Wu

Peking University

Hui Yang

Chinese Academy of Sciences

Mengmeng Chen

Harbin University of Science and Technology

Zhan Gao

Nantong University

Baoxue Zhou

Shanghai Institute of Pollution Control and Ecological Security

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Chinese Academy of Sciences

University of Chinese Academy of Sciences

Institute of Physics

Peking University

Suzhou Institute of Nano-tech and Nano-bionics

University of Science and Technology of China

State Key Laboratory on Integrated Optoelectronics

Institute of Semiconductors

Songshan Lake Materials Laboratory

Czech Academy of Sciences, Institute of Physics

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Magnetic entropy change and refrigerant capacity in GdFeAl compound

Journal of Applied Physics (2009)

Q. Y. Dong Baogen Shen J. Chen Jun Shen Huawei Zhang

Magnetic properties and magnetocaloric effect of GdFeAl compound have been investigated. The small saturated magnetization of GdFeAl compound is caused by the antiferromagnetic coupling between the magnetic moments of Gd and Fe atoms. A second-order magnetic phase transition is confirmed around 265K. The maximum magnetic entropy change for GdFeAl compound is 3.7Jkg−1K−1 under the field change of 0–5T. However, a large refrigerant capacity of 420Jkg−1 is obtained, which is due to the large full width at half peak of the magnetic entropy change versus temperature curve in GdFeAl compound.

Magnetic refrigeration

10.1063/1.3059372

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Citations (31)

Self-Powered Flexible Sensors: From Fundamental Mechanisms toward Diverse Applications

International Journal of Extreme Manufacturing (2024)

J. Chen Jingjing Zhang Nuo Xu Mengmeng Chen Ju‐Hyuck Lee

Abstract Today, energy is essential for every aspect of human life, including clothing, food, housing and transportation. However, traditional energy resources are insufficient to meet our modern needs. Self-powered sensing devices emerge as promising alternatives, offering sustained operation without relying on external power sources. Leveraging advancements in materials and manufacturing research, these devices can autonomously harvest energy from various sources. In this review, we focus on the current landscape of self-powered wearable sensors, providing a concise overview of energy harvesting technologies, conversion mechanisms, structural or material innovations, and energy storage platforms. Then, we present experimental advances in different energy sources, showing their underlying mechanisms, and the potential for energy acquisition. Furthermore, we discuss the applications of self-powered flexible sensors in diverse fields such as medicine, sports, and food. Despite significant progress in this field, widespread commercialization will necessitate enhanced sensor detection abilities, improved design factors for adaptable devices, and a balance between sensitivity and standardization.

10.1088/2631-7990/ad8735

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International Journal of Thermophysics (2000)

J. Chen Baoxue Zhou

Negative Thermal Expansion

10.1023/a:1006672621684

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A study of the degree of relaxation of AlGaN epilayers on GaN template

Journal of Crystal Growth (2004)

Juchen Zhang M. F. Wu Jiancheng Wang J.P. Liu Y.T. Wang