TY - JOUR
T1 - Overcoming lattice mismatch for core-shell NaGdF4@CsPbBr3 heterostructures
AU - Yu, Zhongzheng
AU - Chan, Wen Kiat
AU - Zhou, Donglei
AU - Li, Xinjuan
AU - Lu, Yang
AU - Jiang, Zhao
AU - Xue, Bofeng
AU - Zhu, Huangtianzhi
AU - Dowland, Simon
AU - Ye, Junzhi
AU - Tew, Alasdair
AU - van Turnhout, Lars
AU - Gu, Qichun
AU - Dai, Linjie
AU - Liu, Tianjun
AU - Ducati, Caterina
AU - Rao, Akshay
AU - Tan, Timothy Thatt Yang
N1 - Publisher Copyright:
© The Author(s) 2025.
PY - 2025/12
Y1 - 2025/12
N2 - The formation of core-shell heterostructures allows direct contact of two components for more efficient energy transfer while requires exquisite lattice match. Lattice mismatch is one of the most challenging obstacles for combining two components with different phases. In this work, we develop a strategy to overcome the limitation of lattice mismatch and grow α-phase lead halide perovskites (LHPs) onto β-phase lanthanide-doped nanoparticles (LnNPs) by seeding sub-8 nm LnNPs. This LnNP@LHP heterostructure effectively passivates the surface defects of LnNPs to obtain enhanced upconversion performance and enables two-way energy transfer within the heterostructures. We identify and prove that core size along with a high reaction temperature, instead of phase, is critical to overcome the lattice mismatch. Our strategy uncovers insights into the key factor of direct growth for heterostructures and we believe the current synthesis strategy for high-quality heterostructures will have strong application potential in optoelectronics, anticounterfeiting and light detection.
AB - The formation of core-shell heterostructures allows direct contact of two components for more efficient energy transfer while requires exquisite lattice match. Lattice mismatch is one of the most challenging obstacles for combining two components with different phases. In this work, we develop a strategy to overcome the limitation of lattice mismatch and grow α-phase lead halide perovskites (LHPs) onto β-phase lanthanide-doped nanoparticles (LnNPs) by seeding sub-8 nm LnNPs. This LnNP@LHP heterostructure effectively passivates the surface defects of LnNPs to obtain enhanced upconversion performance and enables two-way energy transfer within the heterostructures. We identify and prove that core size along with a high reaction temperature, instead of phase, is critical to overcome the lattice mismatch. Our strategy uncovers insights into the key factor of direct growth for heterostructures and we believe the current synthesis strategy for high-quality heterostructures will have strong application potential in optoelectronics, anticounterfeiting and light detection.
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U2 - 10.1038/s41467-025-59315-y
DO - 10.1038/s41467-025-59315-y
M3 - Article
AN - SCOPUS:105003483384
SN - 2041-1723
VL - 16
JO - Nature Communications
JF - Nature Communications
IS - 1
M1 - 3891
ER -