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Lv S, Wang S, Li L, Xie S, Yu J, Zhong Y, Wang G, Liang C, Xu X, Zhang L. Gallium Nitride Based Electrode for High-Temperature Supercapacitors. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2023; 10:e2300780. [PMID: 36965081 DOI: 10.1002/advs.202300780] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/07/2023] [Revised: 03/03/2023] [Indexed: 05/27/2023]
Abstract
Gallium nitride (GaN) single crystal, as the representative of wide-band semiconductors, has great prospects for high-temperature energy storage, of its splendid power output, robust temperature stability, and superior carrier mobility. Nonetheless, it is an essential challenge for GaN-based devices to improve energy storage. Herein, an innovative strategy is proposed by constructing GaN/Nickel cobalt oxygen (NiCoO2 )heterostructure for enhanced supercapacitors (SCs). Benefiting from the synergy effect between the porous GaN network as a highly conductive skeleton and the NiCoO2 with massive active sites. The GaN/NiCoO2 heterostructure-based SCs with ion liquids electrolyte are assembled and delivered an impressive energy density of 15.2 µWh cm-2 and power density, as well as superior service life at 130 °C. The theoretical calculation further explains that the reason for the energy storage enhancement of the GaN/NiCoO2 is due to the presence of the built-in electric fields. This work offers a novel perspective for meeting the practical application of GaN-based energy storage devices with exceptional performance capable of operation under high-temperature environments.
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Affiliation(s)
- Songyang Lv
- Institute of Novel Semiconductors, State Key Lab of Crystal Materials, Shandong University, Jinan, 250100, P. R. China
| | - Shouzhi Wang
- Institute of Novel Semiconductors, State Key Lab of Crystal Materials, Shandong University, Jinan, 250100, P. R. China
- Shenzhen Research Institute, Shandong University, Shenzhen, 518000, P. R. China
| | - Lili Li
- Institute of Crystal Materials, State Key Lab of Crystal Materials, Shandong University, Jinan, 250100, P. R. China
| | - Shoutian Xie
- School of Public Administration, Shandong Normal University, Jinan, 250100, P. R. China
| | - Jiaoxian Yu
- Key Laboratory of Processing and Testing Technology of Glass & Functional Ceramics of Shandong Province, School of Materials Science and Engineering, Qilu University of Technology (Shandong Academy of Sciences), Jinan, 250353, P. R. China
| | - Yueyao Zhong
- School of Materials Science and Engineering, Shandong Jianzhu University, Jinan, 250100, P. R. China
| | - Guodong Wang
- Institute of Novel Semiconductors, State Key Lab of Crystal Materials, Shandong University, Jinan, 250100, P. R. China
| | - Chang Liang
- Institute of Novel Semiconductors, State Key Lab of Crystal Materials, Shandong University, Jinan, 250100, P. R. China
| | - Xiangang Xu
- Institute of Novel Semiconductors, State Key Lab of Crystal Materials, Shandong University, Jinan, 250100, P. R. China
| | - Lei Zhang
- Institute of Novel Semiconductors, State Key Lab of Crystal Materials, Shandong University, Jinan, 250100, P. R. China
- Shenzhen Research Institute, Shandong University, Shenzhen, 518000, P. R. China
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Szymański T, Wośko M, Paszkiewicz B, Serafińczuk J, Drzik M, Paszkiewicz R. Stress control by micropits density variation in strained AlGaN/GaN/SiN/AlN/Si(111) heterostructures. CRYSTAL RESEARCH AND TECHNOLOGY 2015. [DOI: 10.1002/crat.201500276] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Tomasz Szymański
- The Faculty of Microsystem Electronics and Photonics; Wroclaw University of Technology; Janiszewskiego 11/17, 50-372 Wroclaw Poland
| | - Mateusz Wośko
- The Faculty of Microsystem Electronics and Photonics; Wroclaw University of Technology; Janiszewskiego 11/17, 50-372 Wroclaw Poland
| | - Bogdan Paszkiewicz
- The Faculty of Microsystem Electronics and Photonics; Wroclaw University of Technology; Janiszewskiego 11/17, 50-372 Wroclaw Poland
| | - Jarosław Serafińczuk
- The Faculty of Microsystem Electronics and Photonics; Wroclaw University of Technology; Janiszewskiego 11/17, 50-372 Wroclaw Poland
| | - Milan Drzik
- International Laser Center; Ilkovicova 3; 841-04 Bratislava 4 Slovak Republic
| | - Regina Paszkiewicz
- The Faculty of Microsystem Electronics and Photonics; Wroclaw University of Technology; Janiszewskiego 11/17, 50-372 Wroclaw Poland
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