3D Printing of Arbitrary Perovskite Nanowire Heterostructures

Mojun Chen; Zhiwen Zhou; Shiqi Hu; Nan Huang; Heekwon Lee; Yu Liu; Jihyuk Yang; Xiao Huan; Zhaoyi Xu; Sixi Cao; Xiang Cheng; Ting Wang; Siu Fung Yu; Barbara Pui Chan; Jinyao Tang; Shien-Ping Feng; Ji Tae Kim

doi:10.1002/adfm.202212146

3D Printing of Arbitrary Perovskite Nanowire Heterostructures

Mojun Chen (Co-first Author), Zhiwen Zhou (Co-first Author), Shiqi Hu, Nan Huang, Heekwon Lee, Yu Liu, Jihyuk Yang, Xiao Huan, Zhaoyi Xu, Sixi Cao, Xiang Cheng, Ting Wang, Siu Fung Yu, Barbara Pui Chan, Jinyao Tang, Shien-Ping Feng^*, Ji Tae Kim^*

^*Corresponding author for this work

Research output: Journal Publications and Reviews › RGC 21 - Publication in refereed journal › peer-review

20 Citations (Scopus)

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Abstract

Deterministic integration of arbitrary semiconductor heterostructures opens a new class of modern electronics and optoelectronics. However, the realization of such heterostructures continues to suffer from impracticality, requiring energy- and labor-intensive, time-consuming fabrication processes. Here a 3D printing approach to fabricate freestanding metal halide perovskite nanowire heterostructures with a high degree of control over shape and composition is demonstrated. These features arise from freeform guiding of evaporation-driven perovskite crystallization by a femtoliter precursor meniscus formed on a printing nozzle. By using a double-barreled nanopipette as a printing nozzle, "all-at-once" heterostructure fabrication is achieved within seconds. The 3D-printed perovskite nanowire heterojunctions with multiple emission colors provide exciting optical functionalities such as programmable color mixing and encryption at the single nanopixel level. This "lithography-free" additive approach opens up the possibility to freely design and realize heterostructure-based devices without the constraints of traditional manufacturing processes.

© 2023 The Authors.

Original language	English
Article number	2212146
Journal	Advanced Functional Materials
Volume	33
Issue number	15
Online published	20 Jan 2023
DOIs	https://doi.org/10.1002/adfm.202212146
Publication status	Published - 11 Apr 2023

Funding

M.C. and Z.Z. contributed equally to this work. This work was supported by the General Research Fund (17200222, 17208919, 17204020) and Collaborative Research Fund (CRF C7018-20G) of the Research Grants Council of Hong Kong; the National Natural Science Foundation of China/Research Grants Council Joint Research Scheme (N_HKU743/22); the Seed Fund for Basic Research (201910159047, 202111159097) of the University Research Committee (URC), The University of Hong Kong; the Start-up Fund (G0101000081) of the Hong Kong University of Science and Technology (Guangzhou).

Research Keywords

3D printing
double-barreled nanopipettes
metal halide perovskite heterostructures
nanowires
LIGHT-EMITTING-DIODES
SOLAR-CELLS
HALIDE PEROVSKITES

Publisher's Copyright Statement

This full text is made available under CC-BY-NC 4.0. https://creativecommons.org/licenses/by-nc/4.0/

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

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3D Printing of Arbitrary Perovskite Nanowire Heterostructures

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Research Keywords

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