90005025

open access

Accepted Manuscript

Solution Processing of Hydrogen-Terminated Silicon Nanocrystal for Flexible Electronic Device

ACS Applied Materials & Interfaces

10(24)

20672-20678

American Chemical Society

2018-06-20

2019-06-01

Publication Date (Web): May 29, 2018

We demonstrate solution processing of hydrogen-terminated silicon nanocrystals (H-Si NCs) for flexible electronic devices. To obtain high and uniform conductivity of a solution-processed Si NC film, we adopt a perfectly dispersed colloidal H-Si NC solution. We show a high conductivity (2 X 10(-5) S/cm) of a solution-processed H-Si NC film which is spin-coated in air. The NC film (area: 100 mm(2)) has uniform conductivity and responds to laser irradiation with 6.8 and 24.1 μs of rise and fall time. By using time-of-flight measurements, we propose a charge transport model in the H-Si NC film. For the proof-of-concept of this study, a flexible photodetector on a polyethylene terephthalate substrate is demonstrated by spin-coating colloidal H-Si NC solution in air. The photodetector can be bent in 5.9 mm bending radius at smallest, and the device properly works after being bent in 2500 cycles.

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学術雑誌論文

This document is the Accepted Manuscript version of a Published Work that appeared in final form in ACS Applied Materials & Interfaces, copyright © American Chemical Society after peer review and technical editing by the publisher. To access the final edited and published work see http://dx.doi.org/10.1021/acsami.8b04072