Exploiting the colloidal nanocrystal library to construct electronic devices

• DOI: 10.1126/science.aad0371
• Publication Date: 2016-04-07T22:14:49Z
• Authors: Ji-Hyuk Choi; Han Wang; Soong Ju Oh; Taejong Paik; Pil Sung; Jinwoo Sung; Xingchen Ye; Tianshuo Zhao; Benjamin T. Diroll; Christopher B. Mu...; Cherie R. Kagan
• Keywords: Cadmium selenide; Passivation

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