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Synthesis and electrical characteristics of Ag2S nanocrystals
- Authors
- Jang, Jaewon; Cho, Kyoungah; Lee, Sang Heon; Kim, Sangsig
- Issue Date
- 31-Mar-2008
- Publisher
- ELSEVIER SCIENCE BV
- Keywords
- silver sulfide; electrical properties; semiconductors
- Citation
- MATERIALS LETTERS, v.62, no.8-9, pp.1438 - 1440
- Indexed
- SCIE
SCOPUS
- Journal Title
- MATERIALS LETTERS
- Volume
- 62
- Number
- 8-9
- Start Page
- 1438
- End Page
- 1440
- ISSN
- 0167-577X
- Abstract
- In this paper, Ag2S nanocrystals were synthesized by the colloidal method at room temperature. The synthesized Ag2S nanocrystals were spherical in shape with a diameter of about 10-20 nm and high crystallinity, which were confirmed by the high resolution transmission electron microscope images and selected-area electron diffraction patterns. In order to investigate the electrical properties of the Ag2S nanocrystals, a back-gate thin film transistor (TFT) device structure was fabricated on SiO2/Si substrates. The drain current of TFT composed of Ag2S was increased according to the increase in the voltages of drain-source and gate, revealing n-type semiconductor properties. The phase of the Ag2S nanocrystals, which is related to their electrical properties, was proved to be alpha-phase by then-no-gravimetric analysis, differential thermal analysis, and X-ray diffraction. (C) 2007 Elsevier B.V. All rights reserved.
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Related Researcher
- Kim, Sang sig
- College of Engineering (School of Electrical Engineering)