Direct 3D-printed CdSe quantum dots via scanning micropipette

被引：1

作者：

Yun, Taesun ^{[1
]}

Kim, Yong Bin ^{[1
]}

Lee, Taegeon ^{[1
]}

Rho, Heesuk ^{[1
]}

Lee, Hyeongwoo ^{[2
]}

Park, Kyoung-Duck ^{[2
]}

Lee, Hong Seok ^{[1
]}

An, Sangmin ^{[1
]}

机构：

[1] Jeonbuk Natl Univ, Res Inst Phys & Chem, Dept Phys, Jeonju 54896, South Korea

[2] Pohang Univ Sci & Technol POSTECH, Dept Phys, Pohang 37673, South Korea

来源：

NANOSCALE ADVANCES | 2023年 / 5卷 / 04期

基金：

新加坡国家研究基金会;

关键词：

FABRICATION; LITHOGRAPHY;

D O I：

10.1039/d2na00627h

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

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.

引用

页码：1070 / 1078

页数：10

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