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Direct 3D-printed CdSe quantum dots via scanning micropipette.

ABSTRACT: The micropipette, pencil-shaped with an aperture diameter of a few micrometers, is a potentially promising tool for the three-dimensional (3D) printing of individual microstructures based on its capability to deliver low volumes of nanomaterial solution on a desired spot resulting in micro/nanoscale patterning. Here, we demonstrate a direct 3D printing technique in which a micropipette with a cadmium selenide (CdSe) quantum dot (QD) solution is guided by an atomic force microscope with no electric field and no piezo-pumping schemes. We define the printed CdSe QD wires, which are a composite material with a QD-liquid coexistence phase, by using photoluminescence and Raman spectroscopy to analyze their intrinsic properties and additionally demonstrate a means of directional falling.

SUBMITTER: Yun T

PROVIDER: S-EPMC9926897 | biostudies-literature | 2023 Feb

REPOSITORIES: biostudies-literature

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Direct 3D-printed CdSe quantum dots <i>via</i> scanning micropipette.

Yun Taesun T Kim Yong Bin YB Lee Taegeon T Rho Heesuk H Lee Hyeongwoo H Park Kyoung-Duck KD Lee Hong Seok HS An Sangmin S

Nanoscale advances 20221128 4

The micropipette, pencil-shaped with an aperture diameter of a few micrometers, is a potentially promising tool for the three-dimensional (3D) printing of individual microstructures based on its capability to deliver low volumes of nanomaterial solution on a desired spot resulting in micro/nanoscale patterning. Here, we demonstrate a direct 3D printing technique in which a micropipette with a cadmium selenide (CdSe) quantum dot (QD) solution is guided by an atomic force microscope with no electr ...[more]

PMID: 36798505

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