3D printing of inorganic nanomaterials by photochemically bonding colloidal nanocrystals-Reference-Cited by-同舟云学术

3D printing of inorganic nanomaterials by photochemically bonding colloidal nanocrystals

Published:2023-09-29 Issue:6665 Volume:381 Page:1468-1474
ISSN:0036-8075
Container-title:Science
language:en
Short-container-title:Science

Author:

Li Fu¹²^ORCID,Liu Shao-Feng³^ORCID,Liu Wangyu¹^ORCID,Hou Zheng-Wei⁴^ORCID,Jiang Jiaxi⁵^ORCID,Fu Zhong¹^ORCID,Wang Song¹^ORCID,Si Yilong¹,Lu Shaoyong¹^ORCID,Zhou Hongwei³^ORCID,Liu Dan¹^ORCID,Tian Xiaoli¹,Qiu Hengwei¹^ORCID,Yang Yuchen¹,Li Zhengcao⁴^ORCID,Li Xiaoyan⁵^ORCID,Lin Linhan³^ORCID,Sun Hong-Bo³^ORCID,Zhang Hao¹⁶^ORCID,Li Jinghong¹⁷⁸^ORCID

Affiliation:

1. Department of Chemistry, Center for Bioanalytical Chemistry, Key Laboratory of Bioorganic Phosphorus Chemistry and Chemical Biology (Ministry of Education), Tsinghua University, Beijing 100084, China.

2. Shanghai Institute of Microsystem and Information Technology, Chinese Academy of Sciences, Shanghai 200050, China.

3. State Key Laboratory of Precision Measurement Technology and Instruments, Department of Precision Instruments, Tsinghua University, Beijing 100084, China.

4. Key Laboratory of Advanced Materials (MOE), School of Materials Science and Engineering, Tsinghua University, Beijing 100084, China.

5. Center for Advanced Mechanics and Materials, Applied Mechanics Laboratory, Department of Engineering Mechanics, Tsinghua University, Beijing 100084, China.

6. Laboratory of Flexible Electronic Technology, Tsinghua University, Beijing 100084, China.

7. Beijing Institute of Life Science and Technology, Beijing 102206, China.

8. Center for BioAnalytical Chemistry, Hefei National Laboratory of Physical Science at Microscale, University of Science and Technology of China, Hefei 230026, China.

Abstract

3D printing of inorganic materials with nanoscale resolution offers a different materials processing pathway to explore devices with emergent functionalities. However, existing technologies typically involve photocurable resins that reduce material purity and degrade properties. We develop a general strategy for laser direct printing of inorganic nanomaterials, as exemplified by more than 10 semiconductors, metal oxides, metals, and their mixtures. Colloidal nanocrystals are used as building blocks and photochemically bonded through their native ligands. Without resins, this bonding process produces arbitrary three-dimensional (3D) structures with a large inorganic mass fraction (~90%) and high mechanical strength. The printed materials preserve the intrinsic properties of constituent nanocrystals and create structure-dictated functionalities, such as the broadband chiroptical responses with an anisotropic factor of ~0.24 for semiconducting cadmium chalcogenide nanohelical arrays.

Publisher

American Association for the Advancement of Science (AAAS)

Subject

Multidisciplinary

Link

https://www.science.org/doi/pdf/10.1126/science.adg6681

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