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With the continuous study of metal halide perovskite, geometry-confined technologies have been widely applied to reduce the material dimensionality and to produce pre-designed structures, which can tune optical reflectance, scattering, and absorption, thereby optimizing the performance of perovskite-based optoelectronic devices and improving their commercial competitiveness. The morphologies of perovskite active layer play a pivotal role in optoelectronic properties and the resulting device performances. In this review, we systematically summarized recent progress in the preparation and manufacture of various perovskite geometry-confined morphologies, as well as their promising advances in different optoelectronic applications, including photodetectors, solar cells (SCs), lasers, and light-emitting diodes (LEDs). In addition, the remaining challenges and further improvements of preparation unique geometry-confined perovskite morphologies for next-generation high quality optoelectronic devices are discussed.

Publication history
Copyright
Acknowledgements

Publication history

Received: 22 January 2022
Revised: 12 March 2022
Accepted: 18 March 2022
Published: 09 June 2022
Issue date: August 2022

Copyright

© Tsinghua University Press 2022

Acknowledgements

L. S. gratefully acknowledges the financial support from the Engineering and Physical Sciences Research Council (Nos. EP/L022559/1, EP/L022559/2, EP/V050311/1, and EP/W004399/1), Royal Society (Nos. RG130230 and IE161214), H2020 Marie Skłodowska-Curie Actions (No. 790666). J. S. Z. was supported by a PhD Studentship provided by Queen Mary University of London and China Scholarship Council (CSC).

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