Investigation on the Doping Dependence of Solution-Processed Zinc Tin Oxide Thin Film and Thin-Film Transistors
- Authors
- Jung, CH[Jung, C. H.]; Lee, JY[Lee, J. Y.]; Pu, LS[Pu, L. S.]; Yoon, DH[Yoon, D. H.]
- Issue Date
- 2011
- Keywords
- Spin-coated process; Thin film transistor; Zinc tin oxide
- Citation
- SYNTHESIS AND REACTIVITY IN INORGANIC METAL-ORGANIC AND NANO-METAL CHEMISTRY, v.41, no.9, pp.1153 - 1157
- Indexed
- SCIE
SCOPUS
- Journal Title
- SYNTHESIS AND REACTIVITY IN INORGANIC METAL-ORGANIC AND NANO-METAL CHEMISTRY
- Volume
- 41
- Number
- 9
- Start Page
- 1153
- End Page
- 1157
- URI
- https://scholarworks.bwise.kr/skku/handle/2021.sw.skku/71900
- DOI
- 10.1080/15533174.2011.591361
- ISSN
- 1553-3174
- Abstract
- The effect of the tin (Sn) concentration in zinc tin oxide (ZTO) films fabricated using a spin-coating process and its effect on ZTO channel thin film transistors (TFTs) with various Sn concentrations were examined. Spin-coated ZTO films with various Sn concentrations were nanocrystalline and had high transmittance (>85%) in the visible region. As the Sn concentration increased, the carrier concentration and resistivity of the nanocrystalline ZTO (nc-ZTO) films ranged from 9.6 x 10(14) cm(-3) to 2.2 x 10(16) cm(-3) and from 1.5 x 10(3) Omega-cm to 1.6 x 10(2) Omega-cm, respectively. The nc-ZTO channel TFTs that were deposited as a function of Sn and Zn concentrations exhibited a subthreshold gate voltage swing (S) of 1.1-1.2 V decade-1, an on/off ratio of 10(5)-10(6), a threshold voltage (V-th) of -0.8-1.7 V, and a mu(FE) value of 2.4-2.6 cm(2) V-1 s(-1). The threshold voltage shift toward the negative gate bias as the Sn concentration in the nc-ZTO TFTs increased indicates the existence of sufficient charge carriers needed to form conductive channels.
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- Appears in
Collections - Engineering > School of Advanced Materials Science and Engineering > 1. Journal Articles
- Graduate School > SKKU Advanced Institute of Nano Technology > 1. Journal Articles
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