Chain-like cation for the fabrication of perovskite nanowires

X. L. Zhang; S. Xu

doi:10.1117/12.2591084

28 February 2021 Chain-like cation for the fabrication of perovskite nanowires

X. L. Zhang, S. Xu

Proceedings Volume 11781, 4th Optics Young Scientist Summit (OYSS 2020); 1178114 (2021) https://doi.org/10.1117/12.2591084
Event: Optics Frontier: Optics Young Scientist Summit, 2020, Ningbo, China

Abstract

In this work, for the first time, the chain-like ethylammonium (EA) [(C₂H₅)NH₃]⁺ caiton as an alternative cation was introduced into FAPbBr₃ cubic crystals to form the mixed-cation FA_xEA_(1-x)PbBr₃ perovskite nanowires (NWs). The results indicate that the incorporation of chain-like EA cation contributes to the inertial growth of nanowires along c axis. Replacing FA with EA can realize bandgap tuning and morphology transformation between cubic shape and nanowires. Similarly, suitable chain-like EA cation doping in MAPbBr₃ can also result in the growth of nanorods. The tuned band gap of perovskite is attributed to the variation of Pb-Br-Pb angles induced by the insertion of larger EA cation.

Citation Download Citation

X. L. Zhang and S. Xu "Chain-like cation for the fabrication of perovskite nanowires", Proc. SPIE 11781, 4th Optics Young Scientist Summit (OYSS 2020), 1178114 (28 February 2021); https://doi.org/10.1117/12.2591084

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