Chiral 3D structures through multi-dimensional transfer printing of multilayer quantum dot patterns

Geon Yeong Kim, Shinho Kim, Ki Hyun Park, Hanhwi Jang, Moohyun Kim, Tae Won Nam, Kyeong Min Song, Hongjoo Shin, Yemin Park, Yeongin Cho, Jihyeon Yeom, Min-Jae Choi (), Min Seok Jang () and Yeon Sik Jung ()
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Geon Yeong Kim: Korea Advanced Institute of Science and Technology (KAIST)
Shinho Kim: Yuseong-gu
Ki Hyun Park: Korea Advanced Institute of Science and Technology (KAIST)
Hanhwi Jang: Korea Advanced Institute of Science and Technology (KAIST)
Moohyun Kim: Korea Advanced Institute of Science and Technology (KAIST)
Tae Won Nam: Korea Advanced Institute of Science and Technology (KAIST)
Kyeong Min Song: Korea Advanced Institute of Science and Technology (KAIST)
Hongjoo Shin: Korea Advanced Institute of Science and Technology (KAIST)
Yemin Park: Korea Advanced Institute of Science and Technology (KAIST)
Yeongin Cho: Korea Advanced Institute of Science and Technology (KAIST)
Jihyeon Yeom: Korea Advanced Institute of Science and Technology (KAIST)
Min-Jae Choi: Jung-gu
Min Seok Jang: Yuseong-gu
Yeon Sik Jung: Korea Advanced Institute of Science and Technology (KAIST)

Nature Communications, 2024, vol. 15, issue 1, 1-11

Abstract: Abstract Three-dimensional optical nanostructures have garnered significant interest in photonics due to their extraordinary capabilities to manipulate the amplitude, phase, and polarization states of light. However, achieving complex three-dimensional optical nanostructures with bottom-up fabrication has remained challenging, despite its nanoscale precision and cost-effectiveness, mainly due to inherent limitations in structural controllability. Here, we report the optical characteristics of intricate two- and three-dimensional nanoarchitectures made of colloidal quantum dots fabricated with multi-dimensional transfer printing. Our customizable fabrication platform, directed by tailored interface polarity, enables flexible geometric control over a variety of one-, two-, and three-dimensional quantum dot architectures, achieving tunable and advanced optical features. For example, we demonstrate a two-dimensional quantum dot nanomesh with tuned subwavelength square perforations designed by finite-difference time-domain calculations, achieving an 8-fold enhanced photoluminescence due to the maximized optical resonance. Furthermore, a three-dimensional quantum dot chiral structure is also created via asymmetric stacking of one-dimensional quantum dot layers, realizing a pronounced circular dichroism intensity exceeding 20°.

Date: 2024
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DOI: 10.1038/s41467-024-51179-y

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