Precise Patterning of Organic Single Crystals via Capillary-Assisted Alternating-Electric Field

Yedong Zhang, Jiansheng Jie, Yuning Sun, Seok Gy Jeon, Xiujuan Zhang, Gaole Dai, Cheol Jin Lee, Xiaohong Zhang

Research output: Contribution to journalArticle

6 Citations (Scopus)

Abstract

Owing to the extraordinary properties, organic micro/nanocrystals are important building blocks for future low-cost and high-performance organic electronic devices. However, integrated device application of the organic micro/nanocrystals is hampered by the difficulty in high-throughput, high-precision patterning of the micro/nanocrystals. In this study, the authors demonstrate, for the first time, a facile capillary-assisted alternating-electric field method for the large-scale assembling and patterning of both 0D and 1D organic crystals. These crystals can be precisely patterned at the photolithography defined holes/channels at the substrate with the yield up to 95% in 1 mm2. The mechanism of assembly kinetics is systematically studied by the electric field distribution simulation and experimental investigations. By using the strategy, various organic micro/nanocrystal patterns are obtained by simply altering the geometries of the photoresist patterns on substrates. Moreover, ultraviolet photodetectors based on the patterned Alq3 micro/nanocrystals exhibit visible-blind photoresponse with high sensitivity as well as excellent stability and reproducibility. This work paves the way toward high-integration, high-performance organic electronic, and optoelectronic devices from the organic micro/nanocrystals.

Original languageEnglish
JournalSmall
DOIs
Publication statusAccepted/In press - 2017

Fingerprint

Nanoparticles
Nanocrystals
Electric fields
Single crystals
Equipment and Supplies
Crystals
Photolithography
Substrates
Photoresists
Photodetectors
Optoelectronic devices
Throughput
Costs and Cost Analysis
Kinetics
Geometry
Costs

Keywords

  • Alternating-electric field
  • Capillary force
  • Organic single crystals
  • Precise patterning
  • UV photodetectors

ASJC Scopus subject areas

  • Biotechnology
  • Biomaterials
  • Engineering (miscellaneous)

Cite this

Zhang, Y., Jie, J., Sun, Y., Jeon, S. G., Zhang, X., Dai, G., ... Zhang, X. (Accepted/In press). Precise Patterning of Organic Single Crystals via Capillary-Assisted Alternating-Electric Field. Small. https://doi.org/10.1002/smll.201604261

Precise Patterning of Organic Single Crystals via Capillary-Assisted Alternating-Electric Field. / Zhang, Yedong; Jie, Jiansheng; Sun, Yuning; Jeon, Seok Gy; Zhang, Xiujuan; Dai, Gaole; Lee, Cheol Jin; Zhang, Xiaohong.

In: Small, 2017.

Research output: Contribution to journalArticle

Zhang, Yedong ; Jie, Jiansheng ; Sun, Yuning ; Jeon, Seok Gy ; Zhang, Xiujuan ; Dai, Gaole ; Lee, Cheol Jin ; Zhang, Xiaohong. / Precise Patterning of Organic Single Crystals via Capillary-Assisted Alternating-Electric Field. In: Small. 2017.
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