@article{Feng2026, 
author = {Wenjing Feng and Xi Chen and Yuhang Cui and Jiawei Chen and Enlong Hou and Jian Xu and Zhanhua Wei and Dongxin Ma},
title = {Intermediate stabilization enables antisolvent-free crystallization of perovskites for high-performance light-emitting diodes},
year = {2026},
journal = {Nano Research},
volume = {19},
number = {4},
pages = {94908503},
keywords = {crystallization, light-emitting diodes, reduced-dimensional perovskites, intermediate stabilization},
url = {https://www.sciopen.com/article/10.26599/NR.2026.94908503},
doi = {10.26599/NR.2026.94908503},
abstract = {Perovskites with superior optoelectronic properties are admirable candidates for high-performance light-emitting diode (LED) applications. However, the use of antisolvents during perovskite film fabrication increases process complexity and production costs, as well as raises toxicity concerns. Here, we demonstrated an antisolvent-free crystallization strategy enabled by intermediate stabilization for the fabrication of high-quality perovskite films. We prepared the reduced-dimensional perovskite precursor, and used cesium bromide as the crystallization retardant to facilitate the formation of stable intermediate during spin coating. This intermediate directs more ordered crystal growth and achieves a uniform quantum well thickness distribution, thereby substantially enhancing film quality. By using this approach, we fabricated LEDs with a maximum external quantum efficiency of 29.36%. This work elucidates the crystallization mechanism of perovskites and establishes an antisolvent-free pathway for the scalable and sustainable fabrication of high-performance perovskite optoelectronic devices.}
}