Exploiting the colloidal nanocrystal library to construct electronic devices

Ji Hyuk Choi, Han Wang, Soong Ju Oh, Taejong Paik, Pil Sung Jo, Jinwoo Sung, Xingchen Ye, Tianshuo Zhao, Benjamin T. Diroll, Christopher B. Murray, Cherie R. Kagan

Research output: Contribution to journalArticle

124 Citations (Scopus)

Abstract

Synthetic methods produce libraries of colloidal nanocrystals with tunable physical properties by tailoring the nanocrystal size, shape, and composition. Here, we exploit colloidal nanocrystal diversity and design the materials, interfaces, and processes to construct all-nanocrystal electronic devices using solution-based processes. Metallic silver and semiconducting cadmium selenide nanocrystals are deposited to form high-conductivity and high-mobility thin-film electrodes and channel layers of field-effect transistors. Insulating aluminum oxide nanocrystals are assembled layer by layer with polyelectrolytes to form high-dielectric constant gate insulator layers for low-voltage device operation. Metallic indium nanocrystals are codispersed with silver nanocrystals to integrate an indium supply in the deposited electrodes that serves to passivate and dope the cadmium selenide nanocrystal channel layer. We fabricate all-nanocrystal field-effect transistors on flexible plastics with electron mobilities of 21.7 square centimeters per volt-second.

Original languageEnglish
Pages (from-to)205-208
Number of pages4
JournalScience
Volume352
Issue number6282
DOIs
Publication statusPublished - 2016 Apr 8

ASJC Scopus subject areas

  • General

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    Choi, J. H., Wang, H., Oh, S. J., Paik, T., Jo, P. S., Sung, J., Ye, X., Zhao, T., Diroll, B. T., Murray, C. B., & Kagan, C. R. (2016). Exploiting the colloidal nanocrystal library to construct electronic devices. Science, 352(6282), 205-208. https://doi.org/10.1126/science.aad0371