Floating Ni Capping for High-Mobility p-Channel SnO Thin-Film Transistorsopen access
- Authors
- Shin, Min-Gyu; Bae, Kang-Hwan; Cha, Hyun-Seok; Jeong, Hwan-Seok; Kim, Dae-Hwan; Kwon, Hyuck-In
- Issue Date
- Jul-2020
- Publisher
- MDPI
- Keywords
- p-channel SnO; thin-film transistor; floating Ni capping layer; high mobility; bulk channel; percolation conduction
- Citation
- MATERIALS, v.13, no.14
- Journal Title
- MATERIALS
- Volume
- 13
- Number
- 14
- URI
- https://scholarworks.bwise.kr/cau/handle/2019.sw.cau/50687
- DOI
- 10.3390/ma13143055
- ISSN
- 1996-1944
1996-1944
- Abstract
- We utilized Ni as a floating capping layer in p-channel SnO thin-film transistors (TFTs) to improve their electrical performances. By utilizing the Ni as a floating capping layer, the p-channel SnO TFT showed enhanced mobility as high as 10.5 cm(2)center dot V-1 center dot s(-1). The increase in mobility was more significant as the length of Ni capping layer increased and the thickness of SnO active layer decreased. The observed phenomenon was possibly attributed to the changed vertical electric field distribution and increased hole concentration in the SnO channel by the floating Ni capping layer. Our experimental results demonstrate that incorporating the floating Ni capping layer on the channel layer is an effective method for increasing the field-effect mobility in p-channel SnO TFTs.
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Collections - College of ICT Engineering > School of Electrical and Electronics Engineering > 1. Journal Articles
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