DataVXACS NanoPaper
journal article·2024-12-17Open access

Curvature-Specific Coupling Electrode Design for a Stretchable Three-Dimensional Inorganic Piezoelectric Nanogenerator

Junwoo Yea, Jeongdae Ha, Kyung Seob Lim, Hyeokjun Lee, Saehyuck Oh, Janghwan Jekal, Tae Sang Yu, Han Hee Jung, Jang-Ung Park, Taeyoon Lee, Jae-Woong Jeong, Hoe Joon Kim, Hohyun Keum, Yoon Kyeung Lee, Kyung-In Jang

ACS Nano· Volume 18· Issue 50
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Source abstract

Abstract

High Resolution Image Download MS PowerPoint Slide Structures such as 3D buckling have been widely used to impart stretchability to devices. However, these structures have limitations when applied to piezoelectric devices due to the uneven distribution of internal strain during deformation. When strains with opposite directions simultaneously affect piezoelectric materials, the electric output can decrease due to cancellation. Here, we report an electrode design tailored to the direction of strain and a circuit configuration that prevents electric output cancellation. These designs not only provide stretchability to piezoelectric nanogenerators (PENGs) but also effectively minimize electric output loss, achieving stretchable PENGs with minimal energy loss. These improvements were demonstrated using an inorganic piezoelectric material (PZT thin film) with a high piezoelectric coefficient, achieving a substantial maximum output power of 8.34 mW/cm 3 . Theoretical modeling of the coupling between mechanical and electrical properties demonstrates the dynamics of energy harvesting, emphasizing the electrode design. In vitro and in vivo experiments validate the device’s effectiveness in biomechanical energy harvesting. These results represent a significant advancement in stretchable PENGs, offering robust and efficient solutions for wearable electronics and biomedical devices.
Source: openalex_inverted_index · Quality: baseline

Research context

Nanomaterials

OpenAlex topics: Advanced Sensor and Energy Harvesting Materials · Conducting polymers and applications · Tactile and Sensory Interactions

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

Affiliations

Department of Robotics and Mechatronics Engineering, Daegu Gyeongbuk Institute of Science and Technology (DGIST), Daegu 42988, Republic of Korea

Futuristic Animal Resource and Research Center, Korea Research Institute of Bioscience and Biotechnology (KRIBB), Cheongju 28116, Republic of Korea

Department of Information and Communication Engineering, Hannam University, Daejeon 34430, Republic of Korea

Department of Materials Science and Engineering, Yonsei University, Seoul 03722, Republic of Korea

Department of Electrical and Electronic Engineering, Yonsei University, Seoul 03722, Republic of Korea

School of Electrical Engineering, Korea Advanced Institute of Science and Technology (KAIST), Daejeon 34141, Republic of Korea

Industrial Transformation Technology Department, Korea Institute of Industrial Technology (KITECH), Cheonan 31056, Republic of Korea

Department of Nano Convergence Engineering, Jeonbuk National University, Jeonju 54896, Republic of Korea

Division of Advanced Materials Engineering, Jeonbuk National University, Jeonju 54896, Republic of Korea

Funding

National Research Foundation of Korea · Naver Corporation

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