Review
Revealing Dynamic Effects of Mobile Ions in Halide Perovskite Solar Cells Using Time-Resolved Microspectroscopy
Weijian Chen,
Zhixing Gan,
Martin A. Green,
Baohua Jia,
Xiaoming Wen,
Weijian Chen
Centre for Translational Atomaterials, Swinburne University of Technology, Hawthorn, VIC, 3122 Australia
Australian Centre for Advanced Photovoltaics, School of Photovoltaic and Renewable Energy Engineering, University of New South Wales (UNSW), Kensington, NSW, 2052 Australia
Search for more papers by this authorZhixing Gan
Center for Future Optoelectronic Functional Materials, School of Computer and Electronic Information/School of Artificial Intelligence, Nanjing Normal University, Nanjing, 210023 P. R. China
College of Materials Science and Engineering, Qingdao University of Science and Technology, Qingdao, 266042 P. R. China
Search for more papers by this authorMartin A. Green
Australian Centre for Advanced Photovoltaics, School of Photovoltaic and Renewable Energy Engineering, University of New South Wales (UNSW), Kensington, NSW, 2052 Australia
Search for more papers by this authorCorresponding Author
Baohua Jia
Centre for Translational Atomaterials, Swinburne University of Technology, Hawthorn, VIC, 3122 Australia
E-mail: [email protected]; [email protected]
Search for more papers by this authorCorresponding Author
Xiaoming Wen
Centre for Translational Atomaterials, Swinburne University of Technology, Hawthorn, VIC, 3122 Australia
E-mail: [email protected]; [email protected]
Search for more papers by this authorWeijian Chen,
Zhixing Gan,
Martin A. Green,
Baohua Jia,
Xiaoming Wen,
Weijian Chen
Centre for Translational Atomaterials, Swinburne University of Technology, Hawthorn, VIC, 3122 Australia
Australian Centre for Advanced Photovoltaics, School of Photovoltaic and Renewable Energy Engineering, University of New South Wales (UNSW), Kensington, NSW, 2052 Australia
Search for more papers by this authorZhixing Gan
Center for Future Optoelectronic Functional Materials, School of Computer and Electronic Information/School of Artificial Intelligence, Nanjing Normal University, Nanjing, 210023 P. R. China
College of Materials Science and Engineering, Qingdao University of Science and Technology, Qingdao, 266042 P. R. China
Search for more papers by this authorMartin A. Green
Australian Centre for Advanced Photovoltaics, School of Photovoltaic and Renewable Energy Engineering, University of New South Wales (UNSW), Kensington, NSW, 2052 Australia
Search for more papers by this authorCorresponding Author
Baohua Jia
Centre for Translational Atomaterials, Swinburne University of Technology, Hawthorn, VIC, 3122 Australia
E-mail: [email protected]; [email protected]
Search for more papers by this authorCorresponding Author
Xiaoming Wen
Centre for Translational Atomaterials, Swinburne University of Technology, Hawthorn, VIC, 3122 Australia
E-mail: [email protected]; [email protected]
Search for more papers by this authorAbstract
Halide perovskites are promising candidate materials for the next generation high-efficiency optoelectronic devices. Since perovskites are electronic-ionic mixed conductors, ion dynamics have a critical impact on the performance and stability of perovskite-based applications. However, comprehensively understanding ionic dynamics is challenging, particularly on nanoscale imaging of ionic dynamics in perovskites. In this review, mobile ion dynamics in halide perovskites investigated via luminescence spectroscopy combined with confocal microscopy are discussed, including mobile ion induced fluorescence quenching, phase segregation in mixed halide hybrid perovskite, and mobile ion accumulation at the interface in perovskite devices. Steady-state and time-resolved luminescence imaging techniques, combined with confocal microscopy, are unique tools for probing ionic dynamics in perovskites, providing invaluable insights on ionic dynamics in nanoscale resolution, along with a wide temporal range from picoseconds to hours. The works in this review are not only for understanding mobile ions to improve the design of perovskite-based devices but also foster the development of microspectroscopic methodologies in a broader solid-state physics context of investigating ionic transports in polycrystalline materials.
Conflict of Interest
The authors declare no conflict of interest.
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