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Morinaga M, Iwaki T, Tanaka H, Lagzi I, Nakanishi H. Patterning Perovskite Quantum Dots Using Photopolymerization. ACS APPLIED MATERIALS & INTERFACES 2023; 15:17152-17162. [PMID: 36811865 DOI: 10.1021/acsami.2c23162] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/18/2023]
Abstract
All-inorganic cesium lead halide perovskite quantum dots (QDs) have several potential applications, owing to their unique optical and electronic properties. However, patterning perovskite QDs using conventional methods is difficult because of the ionic nature of QDs. Here, we demonstrate a unique approach, in which perovskite QDs are patterned in polymer films through the photocuring of monomers under patterned light illumination. The pattern illumination creates the transient polymer concentration difference, which drives the QDs to form patterns; hence controlling polymerization kinetics is essential for the generation of the QD pattern. For the patterning mechanism, a light projection system equipped with a digital micromirror device (DMD) is developed; thus, light intensity, an important factor to determine polymerization kinetics, is precisely controlled per position on the photocurable solution, resulting in the understanding of the mechanism and the formation of distinct QD patterns. The demonstrated approach assisted by the DMD-equipped projection system can form desired perovskite QD patterns solely by patterned light illumination, paving the way for the development of patterning methods for perovskite QDs and other nanocrystals.
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Affiliation(s)
- Mamoru Morinaga
- Department of Macromolecular Science and Engineering, Graduate School of Science and Technology, Kyoto Institute of Technology, Matsugasaki, Kyoto 606-8585, Japan
| | - Takuto Iwaki
- Department of Macromolecular Science and Engineering, Graduate School of Science and Technology, Kyoto Institute of Technology, Matsugasaki, Kyoto 606-8585, Japan
| | - Hayato Tanaka
- Department of Macromolecular Science and Engineering, Graduate School of Science and Technology, Kyoto Institute of Technology, Matsugasaki, Kyoto 606-8585, Japan
| | - István Lagzi
- ELKH-BME Condensed Matter Research Group, Budapest University of Technology and Economics, Budapest 1111, Hungary
- Department of Physics, Institute of Physics, Budapest University of Technology and Economics, Budapest 1111, Hungary
| | - Hideyuki Nakanishi
- Department of Macromolecular Science and Engineering, Graduate School of Science and Technology, Kyoto Institute of Technology, Matsugasaki, Kyoto 606-8585, Japan
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Hahm D, Lim J, Kim H, Shin JW, Hwang S, Rhee S, Chang JH, Yang J, Lim CH, Jo H, Choi B, Cho NS, Park YS, Lee DC, Hwang E, Chung S, Kang CM, Kang MS, Bae WK. Direct patterning of colloidal quantum dots with adaptable dual-ligand surface. NATURE NANOTECHNOLOGY 2022; 17:952-958. [PMID: 35953539 DOI: 10.1038/s41565-022-01182-5] [Citation(s) in RCA: 31] [Impact Index Per Article: 15.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/21/2022] [Accepted: 06/24/2022] [Indexed: 06/15/2023]
Abstract
Colloidal quantum dots (QDs) stand at the forefront of a variety of photonic applications given their narrow spectral bandwidth and near-unity luminescence efficiency. However, integrating luminescent QD films into photonic devices without compromising their optical or transport characteristics remains challenging. Here we devise a dual-ligand passivation system comprising photocrosslinkable ligands and dispersing ligands to enable QDs to be universally compatible with solution-based patterning techniques. The successful control over the structure of both ligands allows the direct patterning of dual-ligand QDs on various substrates using commercialized photolithography (i-line) or inkjet printing systems at a resolution up to 15,000 pixels per inch without compromising the optical properties of the QDs or the optoelectronic performance of the device. We demonstrate the capabilities of our approach for QD-LED applications. Our approach offers a versatile way of creating various structures of luminescent QDs in a cost-effective and non-destructive manner, and could be implemented in nearly all commercial photonics applications where QDs are used.
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Affiliation(s)
- Donghyo Hahm
- SKKU Advanced Institute of Nanotechnology (SAINT), Sungkyunkwan University (SKKU), Suwon, Republic of Korea
| | - Jaemin Lim
- SKKU Advanced Institute of Nanotechnology (SAINT), Sungkyunkwan University (SKKU), Suwon, Republic of Korea
| | - Hyeokjun Kim
- Department of Chemical and Biomolecular Engineering, Institute of Emergent Materials, Sogang University, Seoul, Republic of Korea
| | - Jin-Wook Shin
- Reality Display Research Section, Electronics and Telecommunications Research Institute (ETRI), Daejeon, Republic of Korea
| | - Seongkwon Hwang
- Soft Hybrid Materials Research Center, Korea Institute of Science and Technology, Seoul, Republic of Korea
| | - Seunghyun Rhee
- SKKU Advanced Institute of Nanotechnology (SAINT), Sungkyunkwan University (SKKU), Suwon, Republic of Korea
- Advanced Materials Division, Korea Research Institute of Chemical Technology, Daejeon, Republic of Korea
| | - Jun Hyuk Chang
- SKKU Advanced Institute of Nanotechnology (SAINT), Sungkyunkwan University (SKKU), Suwon, Republic of Korea
| | - Jeehye Yang
- Department of Chemical and Biomolecular Engineering, Institute of Emergent Materials, Sogang University, Seoul, Republic of Korea
| | - Chang Hyeok Lim
- Department of Chemical and Biomolecular Engineering, Institute of Emergent Materials, Sogang University, Seoul, Republic of Korea
| | - Hyunwoo Jo
- Department of Chemical and Biomolecular Engineering, Institute of Emergent Materials, Sogang University, Seoul, Republic of Korea
| | - Beomgyu Choi
- SKKU Advanced Institute of Nanotechnology (SAINT), Sungkyunkwan University (SKKU), Suwon, Republic of Korea
| | - Nam Sung Cho
- Reality Display Research Section, Electronics and Telecommunications Research Institute (ETRI), Daejeon, Republic of Korea
| | - Young-Shin Park
- Department of Chemical and Biomolecular Engineering, KAIST Institute for the Nanocentury, Korea Advanced Institute of Science and Technology (KAIST), Daejeon, Republic of Korea
| | - Doh C Lee
- Department of Chemical and Biomolecular Engineering, KAIST Institute for the Nanocentury, Korea Advanced Institute of Science and Technology (KAIST), Daejeon, Republic of Korea
| | - Euyheon Hwang
- SKKU Advanced Institute of Nanotechnology (SAINT), Sungkyunkwan University (SKKU), Suwon, Republic of Korea
| | - Seungjun Chung
- Soft Hybrid Materials Research Center, Korea Institute of Science and Technology, Seoul, Republic of Korea
| | - Chan-Mo Kang
- Reality Display Research Section, Electronics and Telecommunications Research Institute (ETRI), Daejeon, Republic of Korea.
| | - Moon Sung Kang
- Department of Chemical and Biomolecular Engineering, Institute of Emergent Materials, Sogang University, Seoul, Republic of Korea.
| | - Wan Ki Bae
- SKKU Advanced Institute of Nanotechnology (SAINT), Sungkyunkwan University (SKKU), Suwon, Republic of Korea.
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