Abstract：
:The comprehension of the governing mechanism which affects device instability is one of the most important requirements for the formation of reliable oxide-thin film transistors (TFTs). However, a quantitative analysis of the dominant mechanism of device instability, which stems from charge trapping induced by defects at the oxide semiconductor interface as well as in its bulk, has not yet been systematically performed. In this study, we examined subgap states, charge-transport dynamics, and various trap characteristics of oxide TFTs by multi-frequency C-V, pulse I-V, and transient current methods to achieve a comprehensive understanding of carrier transport and charge trapping mechanisms. We found that the charge trapping behavior of the tested amorphous InHfZnO (a-IHZO) TFT follows a multi-trapping mechanism, such as temperature-independent fast transient charge trapping by resonant drift of the injected electron and temperature-dependent slow transient charge trapping by charge transport from occupied to unoccupied traps. Understanding fast charging and slow charging described in this study can help to understand the root cause of device instability of oxide TFTs and ultimately improve stability and reliability characteristics.
journal_name
Sci Repjournal_title
Scientific reportsauthors
Kim T,Park S,Jeon Sdoi
10.1038/s41598-017-12155-3subject
Has Abstractpub_date
2017-09-19 00:00:00pages
11850issue
1issn
2045-2322pii
10.1038/s41598-017-12155-3journal_volume
7pub_type
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journal_title：Scientific reports
pub_type： 杂志文章
doi：10.1038/s41598-017-13767-5
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pub_type： 杂志文章
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journal_title：Scientific reports
pub_type： 杂志文章
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journal_title：Scientific reports
pub_type： 杂志文章
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更新日期：2015-08-27 00:00:00
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pub_type： 杂志文章
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pub_type： 杂志文章
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pub_type： 杂志文章
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journal_title：Scientific reports
pub_type： 杂志文章
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pub_type： 杂志文章
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journal_title：Scientific reports
pub_type： 杂志文章
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journal_title：Scientific reports
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pub_type： 杂志文章
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journal_title：Scientific reports
pub_type： 历史文章,杂志文章
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journal_title：Scientific reports
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journal_title：Scientific reports
pub_type： 杂志文章
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journal_title：Scientific reports
pub_type： 杂志文章
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journal_title：Scientific reports
pub_type： 杂志文章
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journal_title：Scientific reports
pub_type： 杂志文章
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更新日期：2015-11-24 00:00:00
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journal_title：Scientific reports
pub_type： 杂志文章
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更新日期：2018-01-17 00:00:00
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journal_title：Scientific reports
pub_type： 临床试验,杂志文章,多中心研究
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pub_type： 杂志文章
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journal_title：Scientific reports
pub_type： 杂志文章
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